org.apache.tapestry5.ioc.internal.util
Class JDKUtils

java.lang.Object
  org.apache.tapestry5.ioc.internal.util.JDKUtils

public class JDKUtils
extends java.lang.Object

Internal utilities for identifying the JDK version, used in the rare cases that we are patching around JDK bugs.

Field Summary

static boolean

JDK_1_5 Is the running JVM JDK 1.5?

Constructor Summary

JDKUtils()

Method Summary

static java.util.concurrent.locks.Lock

createLockForThreadLocalCreation() Returns a ReentrantLock used to serialize access to the construction of a thread local; this is only needed under JDK 1.5 (due to a bug in the JDK); for other JDKs, a DummyLock is returned.

Methods inherited from class java.lang.Object

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

Field Detail

JDK_1_5

public static final boolean JDK_1_5

Is the running JVM JDK 1.5?

Constructor Detail

JDKUtils

public JDKUtils()

Method Detail

createLockForThreadLocalCreation

public static java.util.concurrent.locks.Lock createLockForThreadLocalCreation()

Returns a ReentrantLock used to serialize access to the construction of a thread local; this is only needed under JDK 1.5 (due to a bug in the JDK); for other JDKs, a DummyLock is returned.

Returns:

lock to use when creating

Since:

5.3