JavaFeatures

java.lang.Object

one.nio.util.JavaFeatures

public class JavaFeatures extends Object

Field Summary

Fields

Modifier and Type

Field

Description

private static final MethodHandle

isRecord

private static final MethodHandle

onSpinWait
Constructor Summary

Constructors

Constructor

Description

JavaFeatures()
Method Summary

Modifier and Type

Method

Description

private static MethodHandle

getIsRecord()

private static MethodHandle

getOnSpinWait()

static boolean

isRecord(Class<?> cls)

Calls Class.isRecord() since Java 14 preview

static void

onSpinWait()

Calls Thread.onSpinWait() since Java 9; does nothing otherwise

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- onSpinWait
  
  private static final MethodHandle onSpinWait
- isRecord
  
  private static final MethodHandle isRecord
Constructor Details
- JavaFeatures
  
  public JavaFeatures()
Method Details
- getOnSpinWait
  
  private static MethodHandle getOnSpinWait()
- getIsRecord
  
  private static MethodHandle getIsRecord()
- onSpinWait
  
  public static void onSpinWait()
  
  Calls Thread.onSpinWait() since Java 9; does nothing otherwise
- isRecord
  
  public static boolean isRecord(Class<?> cls)
  
  Calls Class.isRecord() since Java 14 preview
  
  Parameters:
  
  cls - a class object
  
  Returns:
  
  the result of the Class.isRecord() method invoked. It is always false, if the version of the JVM Runtime is less than 14