JettyTlsUtil

java.lang.Object
- io.grpc.netty.JettyTlsUtil

```
final class JettyTlsUtil
extends java.lang.Object
```
Utility class for determining support for Jetty TLS ALPN/NPN.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class JettyTlsUtil.Java9AlpnUnavailabilityCauseHolder

Field Summary

Fields
Modifier and Type Field Description

private static java.lang.Throwable jettyAlpnUnavailabilityCause

private static java.lang.Throwable jettyNpnUnavailabilityCause

Constructor Summary

Constructors
Modifier Constructor Description

private JettyTlsUtil()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) static java.lang.Throwable`	`getJava9AlpnUnavailabilityCause()`
`(package private) static java.lang.Throwable`	`getJettyAlpnUnavailabilityCause()`
`(package private) static java.lang.Throwable`	`getJettyNpnUnavailabilityCause()`
`(package private) static boolean`	`isJava9AlpnAvailable()`	Indicates whether Java 9 ALPN is available.
`(package private) static boolean`	`isJettyAlpnConfigured()`	Indicates whether or not the Jetty ALPN jar is installed in the boot classloader.
`(package private) static boolean`	`isJettyNpnConfigured()`	Indicates whether or not the Jetty NPN jar is installed in the boot classloader.

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

- Field Detail
  - jettyAlpnUnavailabilityCause
```
private static java.lang.Throwable jettyAlpnUnavailabilityCause
```
  - jettyNpnUnavailabilityCause
```
private static java.lang.Throwable jettyNpnUnavailabilityCause
```
- Constructor Detail
  - JettyTlsUtil
```
private JettyTlsUtil()
```
- Method Detail
  - isJettyAlpnConfigured
```
static boolean isJettyAlpnConfigured()
```
    Indicates whether or not the Jetty ALPN jar is installed in the boot classloader.
  - getJettyAlpnUnavailabilityCause
```
static java.lang.Throwable getJettyAlpnUnavailabilityCause()
```
  - isJettyNpnConfigured
```
static boolean isJettyNpnConfigured()
```
    Indicates whether or not the Jetty NPN jar is installed in the boot classloader.
  - getJettyNpnUnavailabilityCause
```
static java.lang.Throwable getJettyNpnUnavailabilityCause()
```
  - isJava9AlpnAvailable
```
static boolean isJava9AlpnAvailable()
```
    Indicates whether Java 9 ALPN is available.
  - getJava9AlpnUnavailabilityCause
```
static java.lang.Throwable getJava9AlpnUnavailabilityCause()
```