org.apache.tomcat.util.compat

Class JreCompat

java.lang.Object

org.apache.tomcat.util.compat.JreCompat

public class JreCompat
extends Object

This is the base implementation class for JRE compatibility and provides an implementation based on Java 8. Sub-classes may extend this class and provide alternative implementations for later JRE versions

Constructor Summary

Constructors

Constructor and Description
JreCompat()

Method Summary

Modifier and Type	Method and Description
void	disableCachingForJarUrlConnections() Disables caching for JAR URL connections.
String	getApplicationProtocol(SSLEngine sslEngine) Get the application protocol that has been negotiated for connection associated with the given SSLEngine.
static JreCompat	getInstance()
boolean	isInstanceOfInaccessibleObjectException(Throwable t) Test if the provided exception is an instance of java.lang.reflect.InaccessibleObjectException.
static boolean	isJre9Available()
void	setApplicationProtocols(SSLParameters sslParameters, String[] protocols) Set the application protocols the server will accept for ALPN

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JreCompat

public JreCompat()

Method Detail

getInstance

public static JreCompat getInstance()

isJre9Available

public static boolean isJre9Available()

isInstanceOfInaccessibleObjectException

public boolean isInstanceOfInaccessibleObjectException(Throwable t)

Test if the provided exception is an instance of java.lang.reflect.InaccessibleObjectException.

Parameters:

t - The exception to test

Returns:

true if the exception is an instance of InaccessibleObjectException, otherwise false

setApplicationProtocols

public void setApplicationProtocols(SSLParameters sslParameters,
                                    String[] protocols)

Set the application protocols the server will accept for ALPN

Parameters:

sslParameters - The SSL parameters for a connection

protocols - The application protocols to be allowed for that connection

getApplicationProtocol

public String getApplicationProtocol(SSLEngine sslEngine)

Get the application protocol that has been negotiated for connection associated with the given SSLEngine.

Parameters:

sslEngine - The SSLEngine for which to obtain the negotiated protocol

Returns:

The name of the negotiated protocol

disableCachingForJarUrlConnections

public void disableCachingForJarUrlConnections()
                                        throws IOException

Disables caching for JAR URL connections. For Java 8 and earlier, this also disables caching for ALL URL connections.

Throws:

IOException - If a dummy JAR URLConnection can not be created