Package org.apache.commons.lang3

Class SystemProperties

  • public final class SystemProperties
extends java.lang.Object
    Accesses current system property names and values.
    Since:
    3.13.0
    See Also:
    System Properties

    • Constructor Detail

      • SystemProperties

        @Deprecated
public SystemProperties()
        Deprecated.
        TODO Make private in 4.0.
        Make private in 4.0.

    • Method Detail

      • getAppleAwtEnableTemplateImages

        public static java.lang.String getAppleAwtEnableTemplateImages()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getAwtToolkit

        public static java.lang.String getAwtToolkit()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getBoolean

        public static boolean getBoolean​(java.lang.String key,
                                 java.util.function.BooleanSupplier defaultIfAbsent)
        Gets the current value for the property named key as an boolean.
        Parameters:
        key - The key
        defaultIfAbsent - The default value
        Returns:
        an boolean or defaultIfAbsent

      • getComSunJndiLdapObjectTrustSerialData

        public static java.lang.String getComSunJndiLdapObjectTrustSerialData()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getComSunNetHttpServerHttpServerProvider

        public static java.lang.String getComSunNetHttpServerHttpServerProvider()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getFileEncoding

        public static java.lang.String getFileEncoding()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getFileSeparator

        public static java.lang.String getFileSeparator()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getFtpNonProxyHost

        public static java.lang.String getFtpNonProxyHost()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getFtpProxyHost

        public static java.lang.String getFtpProxyHost()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getFtpProxyPort

        public static java.lang.String getFtpProxyPort()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAgent

        public static java.lang.String getHttpAgent()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAuthDigestCnonceRepeat

        public static java.lang.String getHttpAuthDigestCnonceRepeat()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAuthDigestReenabledAlgorithms

        public static java.lang.String getHttpAuthDigestReenabledAlgorithms()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAuthDigestValidateProxy

        public static java.lang.String getHttpAuthDigestValidateProxy()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAuthDigestValidateServer

        public static java.lang.String getHttpAuthDigestValidateServer()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpAuthNtlmDomain

        public static java.lang.String getHttpAuthNtlmDomain()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpKeepAlive

        public static java.lang.String getHttpKeepAlive()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpKeepAliveTimeProxy

        public static java.lang.String getHttpKeepAliveTimeProxy()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpKeepAliveTimeServer

        public static java.lang.String getHttpKeepAliveTimeServer()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpMaxConnections

        public static java.lang.String getHttpMaxConnections()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpMaxRedirects

        public static java.lang.String getHttpMaxRedirects()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpNonProxyHosts

        public static java.lang.String getHttpNonProxyHosts()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpProxyHost

        public static java.lang.String getHttpProxyHost()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpProxyPort

        public static java.lang.String getHttpProxyPort()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpsProxyHost

        public static java.lang.String getHttpsProxyHost()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getHttpsProxyPort

        public static java.lang.String getHttpsProxyPort()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getInt

        public static int getInt​(java.lang.String key,
                         java.util.function.IntSupplier defaultIfAbsent)
        Gets the current value for the property named key as an int.
        Parameters:
        key - The key
        defaultIfAbsent - The default value
        Returns:
        an int or defaultIfAbsent

      • getJavaAwtFonts

        public static java.lang.String getJavaAwtFonts()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaAwtGraphicsenv

        public static java.lang.String getJavaAwtGraphicsenv()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaAwtHeadless

        public static java.lang.String getJavaAwtHeadless()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaAwtPrinterjob

        public static java.lang.String getJavaAwtPrinterjob()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaClassPath

        public static java.lang.String getJavaClassPath()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaClassVersion

        public static java.lang.String getJavaClassVersion()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaCompiler

        public static java.lang.String getJavaCompiler()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaContentHandlerPkgs

        public static java.lang.String getJavaContentHandlerPkgs()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaEndorsedDirs

        public static java.lang.String getJavaEndorsedDirs()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaExtDirs

        public static java.lang.String getJavaExtDirs()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaHome

        public static java.lang.String getJavaHome()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaIoTmpdir

        public static java.lang.String getJavaIoTmpdir()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaLibraryPath

        public static java.lang.String getJavaLibraryPath()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaLocaleProviders

        public static java.lang.String getJavaLocaleProviders()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Java 9 and above.

        Returns:
        the current value from the system properties map.

      • getJavaLocaleUseOldIsoCodes

        public static java.lang.String getJavaLocaleUseOldIsoCodes()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNetPreferIpv4Stack

        public static java.lang.String getJavaNetPreferIpv4Stack()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNetPreferIpv6Addresses

        public static java.lang.String getJavaNetPreferIpv6Addresses()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNetSocksPassword

        public static java.lang.String getJavaNetSocksPassword()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNetSocksUserName

        public static java.lang.String getJavaNetSocksUserName()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNetUseSystemProxies

        public static java.lang.String getJavaNetUseSystemProxies()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNioChannelsDefaultThreadPoolInitialSize

        public static java.lang.String getJavaNioChannelsDefaultThreadPoolInitialSize()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNioChannelsDefaultThreadPoolThreadFactory

        public static java.lang.String getJavaNioChannelsDefaultThreadPoolThreadFactory()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNioChannelsSpiAsynchronousChannelProvider

        public static java.lang.String getJavaNioChannelsSpiAsynchronousChannelProvider()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNioChannelsSpiSelectorProvider

        public static java.lang.String getJavaNioChannelsSpiSelectorProvider()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaNioFileSpiDefaultFileSystemProvider

        public static java.lang.String getJavaNioFileSpiDefaultFileSystemProvider()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaPropertiesDate

        public static java.lang.String getJavaPropertiesDate()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaProtocolHandlerPkgs

        public static java.lang.String getJavaProtocolHandlerPkgs()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaRmiServerCodebase

        public static java.lang.String getJavaRmiServerCodebase()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaRmiServerHostName

        public static java.lang.String getJavaRmiServerHostName()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaRmiServerRandomIds

        public static java.lang.String getJavaRmiServerRandomIds()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaRmiServerRmiClassLoaderSpi

        public static java.lang.String getJavaRmiServerRmiClassLoaderSpi()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaRuntimeName

        public static java.lang.String getJavaRuntimeName()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaRuntimeVersion

        public static java.lang.String getJavaRuntimeVersion()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaSecurityAuthLoginConfig

        public static java.lang.String getJavaSecurityAuthLoginConfig()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaSecurityManager

        public static java.lang.String getJavaSecurityManager()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaSpecificationMaintenanceVersion

        public static java.lang.String getJavaSpecificationMaintenanceVersion()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaSpecificationName

        public static java.lang.String getJavaSpecificationName()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaSpecificationVendor

        public static java.lang.String getJavaSpecificationVendor()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaSpecificationVersion

        public static java.lang.String getJavaSpecificationVersion()
        Gets the current value from the system properties map.

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaSpecificationVersion

        public static java.lang.String getJavaSpecificationVersion​(java.lang.String defaultValue)
        Gets the current value from the system properties map for "java.specification.version".

        Returns null if the property cannot be read due to a SecurityException.

        Parameters:
        defaultValue - get this Supplier when the property is empty or throws SecurityException.
        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaSystemClassLoader

        public static java.lang.String getJavaSystemClassLoader()
        Gets the current value from the system properties map for "java.system.class.loader".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaTimeZoneDefaultZoneRulesProvider

        public static java.lang.String getJavaTimeZoneDefaultZoneRulesProvider()
        Gets the current value from the system properties map for "java.time.zone.DefaultZoneRulesProvider".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilConcurrentForkJoinPoolCommonExceptionHandler

        public static java.lang.String getJavaUtilConcurrentForkJoinPoolCommonExceptionHandler()
        Gets the current value from the system properties map for "java.util.concurrent.ForkJoinPool.common.exceptionHandler".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilConcurrentForkJoinPoolCommonMaximumSpares

        public static java.lang.String getJavaUtilConcurrentForkJoinPoolCommonMaximumSpares()
        Gets the current value from the system properties map for "java.util.concurrent.ForkJoinPool.common.maximumSpares".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilConcurrentForkJoinPoolCommonParallelism

        public static java.lang.String getJavaUtilConcurrentForkJoinPoolCommonParallelism()
        Gets the current value from the system properties map for "java.util.concurrent.ForkJoinPool.common.parallelism".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilConcurrentForkJoinPoolCommonThreadFactory

        public static java.lang.String getJavaUtilConcurrentForkJoinPoolCommonThreadFactory()
        Gets the current value from the system properties map for "java.util.concurrent.ForkJoinPool.common.threadFactory".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilCurrencyData

        public static java.lang.String getJavaUtilCurrencyData()
        Gets the current value from the system properties map for "java.util.currency.data".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilLoggingConfigClass

        public static java.lang.String getJavaUtilLoggingConfigClass()
        Gets the current value from the system properties map for "java.util.logging.config.class".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilLoggingConfigFile

        public static java.lang.String getJavaUtilLoggingConfigFile()
        Gets the current value from the system properties map for "java.util.logging.config.file".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilLoggingSimpleFormatterFormat

        public static java.lang.String getJavaUtilLoggingSimpleFormatterFormat()
        Gets the current value from the system properties map for "java.util.logging.simpleformatter.format".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaUtilPrefsPreferencesFactory

        public static java.lang.String getJavaUtilPrefsPreferencesFactory()
        Gets the current value from the system properties map for "java.util.prefs.PreferencesFactory".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaUtilPropertyResourceBundleEncoding

        public static java.lang.String getJavaUtilPropertyResourceBundleEncoding()
        Gets the current value from the system properties map for "java.util.PropertyResourceBundle.encoding".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaVendor

        public static java.lang.String getJavaVendor()
        Gets the current value from the system properties map for "java.vendor".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVendorUrl

        public static java.lang.String getJavaVendorUrl()
        Gets the current value from the system properties map for "java.vendor.url".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVendorVersion

        public static java.lang.String getJavaVendorVersion()
        Gets the current value from the system properties map for "java.vendor.version".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaVersion

        public static java.lang.String getJavaVersion()
        Gets the current value from the system properties map for "java.version".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVersionDate

        public static java.lang.String getJavaVersionDate()
        Gets the current value from the system properties map for "java.version.date".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaVmInfo

        public static java.lang.String getJavaVmInfo()
        Gets the current value from the system properties map for "java.vm.info".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmName

        public static java.lang.String getJavaVmName()
        Gets the current value from the system properties map for "java.vm.name".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmSpecificationName

        public static java.lang.String getJavaVmSpecificationName()
        Gets the current value from the system properties map for "java.vm.specification.name".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmSpecificationVendor

        public static java.lang.String getJavaVmSpecificationVendor()
        Gets the current value from the system properties map for "java.vm.specification.vendor".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmSpecificationVersion

        public static java.lang.String getJavaVmSpecificationVersion()
        Gets the current value from the system properties map for "java.vm.specification.version".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmVendor

        public static java.lang.String getJavaVmVendor()
        Gets the current value from the system properties map for "java.vm.vendor".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaVmVersion

        public static java.lang.String getJavaVmVersion()
        Gets the current value from the system properties map for "java.vm.version".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getJavaxAccessibilityAssistiveTechnologies

        public static java.lang.String getJavaxAccessibilityAssistiveTechnologies()
        Gets the current value from the system properties map for "javax.accessibility.assistive_technologies".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaXmlConfigFile

        public static java.lang.String getJavaXmlConfigFile()
        Gets the current value from the system properties map for "java.xml.config.file".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaxNetSslSessionCacheSize

        public static java.lang.String getJavaxNetSslSessionCacheSize()
        Gets the current value from the system properties map for "javax.net.ssl.sessionCacheSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaxRmiSslClientEnabledCipherSuites

        public static java.lang.String getJavaxRmiSslClientEnabledCipherSuites()
        Gets the current value from the system properties map for "javax.rmi.ssl.client.enabledCipherSuites".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaxRmiSslClientEnabledProtocols

        public static java.lang.String getJavaxRmiSslClientEnabledProtocols()
        Gets the current value from the system properties map for "javax.rmi.ssl.client.enabledProtocols".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaxSecurityAuthUseSubjectCredsOnly

        public static java.lang.String getJavaxSecurityAuthUseSubjectCredsOnly()
        Gets the current value from the system properties map for "javax.security.auth.useSubjectCredsOnly".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJavaxSmartCardIoTerminalFactoryDefaultType

        public static java.lang.String getJavaxSmartCardIoTerminalFactoryDefaultType()
        Gets the current value from the system properties map for "javax.smartcardio.TerminalFactory.DefaultType".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdbcDrivers

        public static java.lang.String getJdbcDrivers()
        Gets the current value from the system properties map for "jdbc.drivers".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpAuthProxyingDisabledSchemes

        public static java.lang.String getJdkHttpAuthProxyingDisabledSchemes()
        Gets the current value from the system properties map for "jdk.http.auth.proxying.disabledSchemes".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpAuthTunnelingDisabledSchemes

        public static java.lang.String getJdkHttpAuthTunnelingDisabledSchemes()
        Gets the current value from the system properties map for "jdk.http.auth.tunneling.disabledSchemes".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientAllowRestrictedHeaders

        public static java.lang.String getJdkHttpClientAllowRestrictedHeaders()
        Gets the current value from the system properties map for "jdk.httpclient.allowRestrictedHeaders".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientAuthRetryLimit

        public static java.lang.String getJdkHttpClientAuthRetryLimit()
        Gets the current value from the system properties map for "jdk.httpclient.auth.retrylimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientBufSize

        public static java.lang.String getJdkHttpClientBufSize()
        Gets the current value from the system properties map for "jdk.httpclient.bufsize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientConnectionPoolSize

        public static java.lang.String getJdkHttpClientConnectionPoolSize()
        Gets the current value from the system properties map for "jdk.httpclient.connectionPoolSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientConnectionWindowSize

        public static java.lang.String getJdkHttpClientConnectionWindowSize()
        Gets the current value from the system properties map for "jdk.httpclient.connectionWindowSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientDisableRetryConnect

        public static java.lang.String getJdkHttpClientDisableRetryConnect()
        Gets the current value from the system properties map for "jdk.httpclient.disableRetryConnect".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientEnableAllMethodRetry

        public static java.lang.String getJdkHttpClientEnableAllMethodRetry()
        Gets the current value from the system properties map for "jdk.httpclient.enableAllMethodRetry".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientEnablePush

        public static java.lang.String getJdkHttpClientEnablePush()
        Gets the current value from the system properties map for "jdk.httpclient.enablepush".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientHpackMaxHeaderTableSize

        public static java.lang.String getJdkHttpClientHpackMaxHeaderTableSize()
        Gets the current value from the system properties map for "jdk.httpclient.hpack.maxheadertablesize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientHttpClientLog

        public static java.lang.String getJdkHttpClientHttpClientLog()
        Gets the current value from the system properties map for "jdk.httpclient.HttpClient.log".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientKeepAliveTimeout

        public static java.lang.String getJdkHttpClientKeepAliveTimeout()
        Gets the current value from the system properties map for "jdk.httpclient.keepalive.timeout".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientKeepAliveTimeoutH2

        public static java.lang.String getJdkHttpClientKeepAliveTimeoutH2()
        Gets the current value from the system properties map for "jdk.httpclient.keepalive.timeout.h2".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientMaxFrameSize

        public static java.lang.String getJdkHttpClientMaxFrameSize()
        Gets the current value from the system properties map for "jdk.httpclient.maxframesize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientMaxStreams

        public static java.lang.String getJdkHttpClientMaxStreams()
        Gets the current value from the system properties map for "jdk.httpclient.maxstreams".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientReceiveBufferSize

        public static java.lang.String getJdkHttpClientReceiveBufferSize()
        Gets the current value from the system properties map for "jdk.httpclient.receiveBufferSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientRedirectsRetryLimit

        public static java.lang.String getJdkHttpClientRedirectsRetryLimit()
        Gets the current value from the system properties map for "jdk.httpclient.redirects.retrylimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientSendBufferSize

        public static java.lang.String getJdkHttpClientSendBufferSize()
        Gets the current value from the system properties map for "jdk.httpclient.sendBufferSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientWebSocketWriteBufferSize

        public static java.lang.String getJdkHttpClientWebSocketWriteBufferSize()
        Gets the current value from the system properties map for "jdk.httpclient.websocket.writeBufferSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpClientWindowSize

        public static java.lang.String getJdkHttpClientWindowSize()
        Gets the current value from the system properties map for "jdk.httpclient.windowsize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpServerMaxConnections

        public static java.lang.String getJdkHttpServerMaxConnections()
        Gets the current value from the system properties map for "jdk.httpserver.maxConnections".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkHttpsNegotiateCbt

        public static java.lang.String getJdkHttpsNegotiateCbt()
        Gets the current value from the system properties map for "jdk.https.negotiate.cbt".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkIncludeInExceptions

        public static java.lang.String getJdkIncludeInExceptions()
        Gets the current value from the system properties map for "jdk.includeInExceptions".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkInternalHttpClientDisableHostNameVerification

        public static java.lang.String getJdkInternalHttpClientDisableHostNameVerification()
        Gets the current value from the system properties map for "jdk.internal.httpclient.disableHostnameVerification".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkIoPermissionsUseCanonicalPath

        public static java.lang.String getJdkIoPermissionsUseCanonicalPath()
        Gets the current value from the system properties map for "jdk.io.permissionsUseCanonicalPath".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkJndiLdapObjectFactoriesFilter

        public static java.lang.String getJdkJndiLdapObjectFactoriesFilter()
        Gets the current value from the system properties map for "jdk.jndi.ldap.object.factoriesFilter".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkJndiObjectFactoriesFilter

        public static java.lang.String getJdkJndiObjectFactoriesFilter()
        Gets the current value from the system properties map for "jdk.jndi.object.factoriesFilter".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkJndiRmiObjectFactoriesFilter

        public static java.lang.String getJdkJndiRmiObjectFactoriesFilter()
        Gets the current value from the system properties map for "jdk.jndi.rmi.object.factoriesFilter".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkModuleMain

        public static java.lang.String getJdkModuleMain()
        Gets the current value from the system properties map for "jdk.module.main".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkModuleMainClass

        public static java.lang.String getJdkModuleMainClass()
        Gets the current value from the system properties map for "jdk.module.main.class".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkModulePath

        public static java.lang.String getJdkModulePath()
        Gets the current value from the system properties map for "jdk.module.path".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkModuleUpgradePath

        public static java.lang.String getJdkModuleUpgradePath()
        Gets the current value from the system properties map for "jdk.module.upgrade.path".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkNetUnixDomainTmpDir

        public static java.lang.String getJdkNetUnixDomainTmpDir()
        Gets the current value from the system properties map for "jdk.net.unixdomain.tmpdir".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkNetUrlClassPathShowIgnoredClassPathEntries

        public static java.lang.String getJdkNetUrlClassPathShowIgnoredClassPathEntries()
        Gets the current value from the system properties map for "jdk.net.URLClassPath.showIgnoredClassPathEntries".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkSerialFilter

        public static java.lang.String getJdkSerialFilter()
        Gets the current value from the system properties map for "jdk.serialFilter".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkSerialFilterFactory

        public static java.lang.String getJdkSerialFilterFactory()
        Gets the current value from the system properties map for "jdk.serialFilterFactory".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkTlsClientSignatureSchemes

        public static java.lang.String getJdkTlsClientSignatureSchemes()
        Gets the current value from the system properties map for "jdk.tls.client.SignatureSchemes".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkTlsNamedGroups

        public static java.lang.String getJdkTlsNamedGroups()
        Gets the current value from the system properties map for "jdk.tls.namedGroups".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkTlsServerSignatureSchemes

        public static java.lang.String getJdkTlsServerSignatureSchemes()
        Gets the current value from the system properties map for "jdk.tls.server.SignatureSchemes".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkVirtualThreadSchedulerMaxPoolSize

        public static java.lang.String getJdkVirtualThreadSchedulerMaxPoolSize()
        Gets the current value from the system properties map for "jdk.virtualThreadScheduler.maxPoolSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkVirtualThreadSchedulerParallelism

        public static java.lang.String getJdkVirtualThreadSchedulerParallelism()
        Gets the current value from the system properties map for "jdk.virtualThreadScheduler.parallelism".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlCdataChunkSize

        public static java.lang.String getJdkXmlCdataChunkSize()
        Gets the current value from the system properties map for "jdk.xml.cdataChunkSize".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlDtdSupport

        public static java.lang.String getJdkXmlDtdSupport()
        Gets the current value from the system properties map for "jdk.xml.dtd.support".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlElementAttributeLimit

        public static java.lang.String getJdkXmlElementAttributeLimit()
        Gets the current value from the system properties map for "jdk.xml.elementAttributeLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlEnableExtensionFunctions

        public static java.lang.String getJdkXmlEnableExtensionFunctions()
        Gets the current value from the system properties map for "jdk.xml.enableExtensionFunctions".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlEntityExpansionLimit

        public static java.lang.String getJdkXmlEntityExpansionLimit()
        Gets the current value from the system properties map for "jdk.xml.entityExpansionLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlEntityReplacementLimit

        public static java.lang.String getJdkXmlEntityReplacementLimit()
        Gets the current value from the system properties map for "jdk.xml.entityReplacementLimi_t".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlIsStandalone

        public static java.lang.String getJdkXmlIsStandalone()
        Gets the current value from the system properties map for "jdk.xml.isStandalone".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlJdkCatalogResolve

        public static java.lang.String getJdkXmlJdkCatalogResolve()
        Gets the current value from the system properties map for "jdk.xml.jdkcatalog.resolve".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlMaxElementDepth

        public static java.lang.String getJdkXmlMaxElementDepth()
        Gets the current value from the system properties map for "jdk.xml.maxElementDepth".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlMaxGeneralEntitySizeLimit

        public static java.lang.String getJdkXmlMaxGeneralEntitySizeLimit()
        Gets the current value from the system properties map for "jdk.xml.maxGeneralEntitySizeLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlMaxOccurLimit

        public static java.lang.String getJdkXmlMaxOccurLimit()
        Gets the current value from the system properties map for "jdk.xml.maxOccurLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlMaxParameterEntitySizeLimit

        public static java.lang.String getJdkXmlMaxParameterEntitySizeLimit()
        Gets the current value from the system properties map for "jdk.xml.maxParameterEntitySizeLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlMaxXmlNameLimit

        public static java.lang.String getJdkXmlMaxXmlNameLimit()
        Gets the current value from the system properties map for "jdk.xml.maxXMLNameLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlOverrideDefaultParser

        public static java.lang.String getJdkXmlOverrideDefaultParser()
        Gets the current value from the system properties map for "jdk.xml.overrideDefaultParser".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlResetSymbolTable

        public static java.lang.String getJdkXmlResetSymbolTable()
        Gets the current value from the system properties map for "jdk.xml.resetSymbolTable".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlTotalEntitySizeLimit

        public static java.lang.String getJdkXmlTotalEntitySizeLimit()
        Gets the current value from the system properties map for "jdk.xml.totalEntitySizeLimit".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getJdkXmlXsltcIsStandalone

        public static java.lang.String getJdkXmlXsltcIsStandalone()
        Gets the current value from the system properties map for "jdk.xml.xsltcIsStandalone".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getLineSeparator

        public static java.lang.String getLineSeparator()
        Gets the current value from the system properties map for "line.separator".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getLineSeparator

        public static java.lang.String getLineSeparator​(java.util.function.Supplier<java.lang.String> defaultIfAbsent)
        Gets the current value from the system properties map for "line.separator".

        Returns null if the property cannot be read due to a SecurityException.

        Parameters:
        defaultIfAbsent - get this Supplier when the property is empty or throws SecurityException.
        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getLong

        public static long getLong​(java.lang.String key,
                           java.util.function.LongSupplier defaultIfAbsent)
        Gets the current value for the property named key as a long.
        Parameters:
        key - The key
        defaultIfAbsent - The default value
        Returns:
        a long or defaultIfAbsent

      • getNativeEncoding

        public static java.lang.String getNativeEncoding()
        Gets the current value from the system properties map for "native.encoding".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getNetworkAddressCacheNegativeTtl

        public static java.lang.String getNetworkAddressCacheNegativeTtl()
        Gets the current value from the system properties map for "networkaddress.cache.negative.ttl".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getNetworkAddressCacheStaleTtl

        public static java.lang.String getNetworkAddressCacheStaleTtl()
        Gets the current value from the system properties map for "networkaddress.cache.stale.ttl".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getNetworkAddressCacheTtl

        public static java.lang.String getNetworkAddressCacheTtl()
        Gets the current value from the system properties map for "networkaddress.cache.ttl".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getOrgJcpXmlDsigSecureValidation

        public static java.lang.String getOrgJcpXmlDsigSecureValidation()
        Gets the current value from the system properties map for "org.jcp.xml.dsig.securevalidation".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getOrgOpenJdkJavaUtilStreamTripwire

        public static java.lang.String getOrgOpenJdkJavaUtilStreamTripwire()
        Gets the current value from the system properties map for "org.openjdk.java.util.stream.tripwire".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getOsArch

        public static java.lang.String getOsArch()
        Gets the current value from the system properties map for "os.arch".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getOsName

        public static java.lang.String getOsName()
        Gets the current value from the system properties map for "os.name".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getOsVersion

        public static java.lang.String getOsVersion()
        Gets the current value from the system properties map for "os.version".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getPathSeparator

        public static java.lang.String getPathSeparator()
        Gets the current value from the system properties map for "path.separator".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getProperty

        public static java.lang.String getProperty​(java.lang.String property)
        Gets a System property, defaulting to null if the property cannot be read.

        If a SecurityException is caught, the return value is null.

        Parameters:
        property - the system property name
        Returns:
        the system property value or null if a security problem occurs

      • getSocksProxyHost

        public static java.lang.String getSocksProxyHost()
        Gets the current value from the system properties map for "socksProxyHost".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSocksProxyPort

        public static java.lang.String getSocksProxyPort()
        Gets the current value from the system properties map for "socksProxyPort".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSocksProxyVersion

        public static java.lang.String getSocksProxyVersion()
        Gets the current value from the system properties map for "socksProxyVersion".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getStdErrEncoding

        public static java.lang.String getStdErrEncoding()
        Gets the current value from the system properties map for "stderr.encoding".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getStdOutEncoding

        public static java.lang.String getStdOutEncoding()
        Gets the current value from the system properties map for "stdout.encoding".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerDrainAmount

        public static java.lang.String getSunNetHttpServerDrainAmount()
        Gets the current value from the system properties map for "sun.net.httpserver.drainAmount".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerIdleInterval

        public static java.lang.String getSunNetHttpServerIdleInterval()
        Gets the current value from the system properties map for "sun.net.httpserver.idleInterval".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerMaxIdleConnections

        public static java.lang.String getSunNetHttpServerMaxIdleConnections()
        Gets the current value from the system properties map for "sun.net.httpserver.maxIdleConnections".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerMaxReqHeaders

        public static java.lang.String getSunNetHttpServerMaxReqHeaders()
        Gets the current value from the system properties map for "sun.net.httpserver.maxReqHeaders".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerMaxReqTime

        public static java.lang.String getSunNetHttpServerMaxReqTime()
        Gets the current value from the system properties map for "sun.net.httpserver.maxReqTime".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerMaxRspTime

        public static java.lang.String getSunNetHttpServerMaxRspTime()
        Gets the current value from the system properties map for "sun.net.httpserver.maxRspTime".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunNetHttpServerNoDelay

        public static java.lang.String getSunNetHttpServerNoDelay()
        Gets the current value from the system properties map for "sun.net.httpserver.nodelay".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getSunSecurityKrb5Principal

        public static java.lang.String getSunSecurityKrb5Principal()
        Gets the current value from the system properties map for "sun.security.krb5.principal".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getUserCountry

        public static java.lang.String getUserCountry()
        Gets the current value from the system properties map for "user.country".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserDir

        public static java.lang.String getUserDir()
        Gets the current value from the system properties map for "user.dir".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserExtensions

        public static java.lang.String getUserExtensions()
        Gets the current value from the system properties map for "user.extensions".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getUserHome

        public static java.lang.String getUserHome()
        Gets the current value from the system properties map for "user.home".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserLanguage

        public static java.lang.String getUserLanguage()
        Gets the current value from the system properties map for "user.language".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserName

        public static java.lang.String getUserName()
        Gets the current value from the system properties map for "user.name".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserName

        public static java.lang.String getUserName​(java.lang.String defaultValue)
        Gets the current value from the system properties map for "user.name".

        Returns null if the property cannot be read due to a SecurityException.

        Parameters:
        defaultValue - get this Supplier when the property is empty or throws SecurityException.
        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getUserRegion

        public static java.lang.String getUserRegion()
        Gets the current value from the system properties map for "user.region".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getUserScript

        public static java.lang.String getUserScript()
        Gets the current value from the system properties map for "user.script".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • getUserTimezone

        public static java.lang.String getUserTimezone()
        Gets the current value from the system properties map for "user.timezone".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.

      • getUserVariant

        public static java.lang.String getUserVariant()
        Gets the current value from the system properties map for "user.variant".

        Returns null if the property cannot be read due to a SecurityException.

        Returns:
        the current value from the system properties map.
        Since:
        3.15.0

      • isPropertySet

        public static boolean isPropertySet​(java.lang.String property)
        Tests whether the given property is set.

        Short-hand for getProperty(property) != null.

        If a SecurityException is caught, the return value is false.

        Parameters:
        property - the system property name.
        Returns:
        whether the given property is set.
        Since:
        3.18.0