Author: kkolinko Date: Sun Jun 6 19:17:58 2010 New Revision: 951930 URL: http://svn.apache.org/viewvc?rev=951930&view=rev Log: Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=48971 Make stopping of leaking Timer threads optional and disabled by default. It is merge of r950164, r950614 from trunk.
Modified: tomcat/tc6.0.x/trunk/ (props changed) tomcat/tc6.0.x/trunk/STATUS.txt tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/StandardContext.java tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappClassLoader.java tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappLoader.java tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml tomcat/tc6.0.x/trunk/webapps/docs/config/context.xml Propchange: tomcat/tc6.0.x/trunk/ ------------------------------------------------------------------------------ --- svn:mergeinfo (original) +++ svn:mergeinfo Sun Jun 6 19:17:58 2010 @@ -1 +1 @@ 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,950596,950614,951615 Modified: tomcat/tc6.0.x/trunk/STATUS.txt URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/STATUS.txt?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/STATUS.txt (original) +++ tomcat/tc6.0.x/trunk/STATUS.txt Sun Jun 6 19:17:58 2010 @@ -196,14 +196,6 @@ PATCHES PROPOSED TO BACKPORT: +1: kfujino, kkolinko -1: -* Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=48971 - Make stopping of leaking Timer threads optional - http://svn.apache.org/viewvc?rev=950164&view=rev - +1: markt - +1: kkolinko (with r950614) - +1: kfujino (with r950614) - -1: - * Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=49099 Provide a mechanism for including requests rejected by the CoyoteAdapter in the standard access log Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/StandardContext.java URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/StandardContext.java?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/StandardContext.java (original) +++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/core/StandardContext.java Sun Jun 6 19:17:58 2010 @@ -715,9 +715,16 @@ public class StandardContext * instability. As such, enabling this should be viewed as an option of last * resort in a development environment and is not recommended in a * production environment. If not specified, the default value of - * <code>false</code> will be used. + * <code>false</code> will be used. */ private boolean clearReferencesStopThreads = false; + + /** + * Should Tomcat attempt to terminate any {...@link java.util.TimerThread}s + * that have been started by the web application? If not specified, the + * default value of <code>false</code> will be used. + */ + private boolean clearReferencesStopTimerThreads = false; /** * Should Tomcat attempt to clear any ThreadLocal objects that are instances @@ -2059,6 +2066,31 @@ public class StandardContext /** + * Return the clearReferencesStopTimerThreads flag for this Context. + */ + public boolean getClearReferencesStopTimerThreads() { + return (this.clearReferencesStopTimerThreads); + } + + + /** + * Set the clearReferencesStopTimerThreads feature for this Context. + * + * @param clearReferencesStopTimerThreads The new flag value + */ + public void setClearReferencesStopTimerThreads( + boolean clearReferencesStopTimerThreads) { + + boolean oldClearReferencesStopTimerThreads = + this.clearReferencesStopTimerThreads; + this.clearReferencesStopTimerThreads = clearReferencesStopTimerThreads; + support.firePropertyChange("clearReferencesStopTimerThreads", + oldClearReferencesStopTimerThreads, + this.clearReferencesStopTimerThreads); + } + + + /** * Return the clearReferencesThreadLocals flag for this Context. */ public boolean getClearReferencesThreadLocals() { Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappClassLoader.java URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappClassLoader.java?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappClassLoader.java (original) +++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappClassLoader.java Sun Jun 6 19:17:58 2010 @@ -445,13 +445,18 @@ public class WebappClassLoader * instability. As such, enabling this should be viewed as an option of last * resort in a development environment and is not recommended in a * production environment. If not specified, the default value of - * <code>false</code> will be used. Note that instances of - * java.util.TimerThread will always be terminate since a safe method exists - * to do so. + * <code>false</code> will be used. */ private boolean clearReferencesStopThreads = false; /** + * Should Tomcat attempt to terminate any {...@link java.util.TimerThread}s + * that have been started by the web application? If not specified, the + * default value of <code>false</code> will be used. + */ + private boolean clearReferencesStopTimerThreads = false; + + /** * Should Tomcat attempt to clear any ThreadLocal objects that are instances * of classes loaded by this class loader. Failure to remove any such * objects will result in a memory leak on web application stop, undeploy or @@ -666,6 +671,25 @@ public class WebappClassLoader /** + * Return the clearReferencesStopTimerThreads flag for this Context. + */ + public boolean getClearReferencesStopTimerThreads() { + return (this.clearReferencesStopTimerThreads); + } + + + /** + * Set the clearReferencesStopTimerThreads feature for this Context. + * + * @param clearReferencesStopTimerThreads The new flag value + */ + public void setClearReferencesStopTimerThreads( + boolean clearReferencesStopTimerThreads) { + this.clearReferencesStopTimerThreads = clearReferencesStopTimerThreads; + } + + + /** * Return the clearReferencesLogFactoryRelease flag for this Context. */ public boolean getClearReferencesLogFactoryRelease() { @@ -673,6 +697,16 @@ public class WebappClassLoader } + /** + * Set the clearReferencesLogFactoryRelease feature for this Context. + * + * @param clearReferencesLogFactoryRelease The new flag value + */ + public void setClearReferencesLogFactoryRelease( + boolean clearReferencesLogFactoryRelease) { + this.clearReferencesLogFactoryRelease = + clearReferencesLogFactoryRelease; + } /** @@ -694,18 +728,6 @@ public class WebappClassLoader } - /** - * Set the clearReferencesLogFactoryRelease feature for this Context. - * - * @param clearReferencesLogFactoryRelease The new flag value - */ - public void setClearReferencesLogFactoryRelease( - boolean clearReferencesLogFactoryRelease) { - this.clearReferencesLogFactoryRelease = - clearReferencesLogFactoryRelease; - } - - // ------------------------------------------------------- Reloader Methods @@ -2034,9 +2056,10 @@ public class WebappClassLoader continue; } - // TimerThread is not normally visible + // TimerThread can be stopped safely so treat separately if (thread.getClass().getName().equals( - "java.util.TimerThread")) { + "java.util.TimerThread") && + clearReferencesStopTimerThreads) { clearReferencesStopTimerThread(thread); continue; } Modified: tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappLoader.java URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappLoader.java?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappLoader.java (original) +++ tomcat/tc6.0.x/trunk/java/org/apache/catalina/loader/WebappLoader.java Sun Jun 6 19:17:58 2010 @@ -643,6 +643,8 @@ public class WebappLoader ((StandardContext) container).getAntiJARLocking()); classLoader.setClearReferencesStopThreads( ((StandardContext) container).getClearReferencesStopThreads()); + classLoader.setClearReferencesStopTimerThreads( + ((StandardContext) container).getClearReferencesStopTimerThreads()); classLoader.setClearReferencesThreadLocals( ((StandardContext) container).getClearReferencesThreadLocals()); } Modified: tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml (original) +++ tomcat/tc6.0.x/trunk/webapps/docs/changelog.xml Sun Jun 6 19:17:58 2010 @@ -108,6 +108,10 @@ <bug>48903</bug>: Fix deadlock in webapp class loader. (rjung) </fix> <fix> + <bug>48971</bug>: Make stopping of leaking Timer threads optional and + disabled by default. (markt) + </fix> + <fix> <bug>48976</bug>: Document JAVA_ENDORSED_DIRS in start-up scripts. Patch provided by Laurent Vaills. (markt) </fix> Modified: tomcat/tc6.0.x/trunk/webapps/docs/config/context.xml URL: http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/webapps/docs/config/context.xml?rev=951930&r1=951929&r2=951930&view=diff ============================================================================== --- tomcat/tc6.0.x/trunk/webapps/docs/config/context.xml (original) +++ tomcat/tc6.0.x/trunk/webapps/docs/config/context.xml Sun Jun 6 19:17:58 2010 @@ -343,6 +343,14 @@ default value of <code>false</code> will be used.</p> </attribute> + <attribute name="clearReferencesStopTimerThreads" required = "false"> + <p>If <code>true</code>, Tomcat attempts to terminate + <code>java.util.Timer</code> threads that have been started by the web + application. Unlike standard threads, timer threads can be stopped + safely although there may still be side-effects for the application. If + not specified, the default value of <code>false</code> will be used.</p> + </attribute> + <attribute name="clearReferencesThreadLocals" required="false"> <p>If <code>true</code>, Tomcat attempts to clear any ThreadLocal objects that are instances of classes loaded by this class loader. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org