[WW-4347] Support for JDK 8 Lambdas

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.16.3
• Fix Version/s: 2.3.24
• Component/s: Core Actions
• Labels: jdk8
• Assignee: Lukasz Lenart
• Reporter: Erik Berg
• Created: 18/May/14 17:14
• Updated: 30/Nov/15 14:47
• Resolved: 23/Dec/14 09:05

Description

Struts stumbles when encountering lambda expressions in JDK 8. Looks like org.objwectweb.asm dependency needs to be updated...

2014-05-18 10:21:41,111 ERROR (com.opensymphony.xwork2.util.finder.ClassFinder:38) - Unable to read class [jdk8test.actions.Lambda]
java.lang.ArrayIndexOutOfBoundsException: 52264
	at org.objectweb.asm.ClassReader.readClass(Unknown Source)
	at org.objectweb.asm.ClassReader.accept(Unknown Source)
	at org.objectweb.asm.ClassReader.accept(Unknown Source)
	at com.opensymphony.xwork2.util.finder.ClassFinder.readClassDef(ClassFinder.java:717)
	at com.opensymphony.xwork2.util.finder.ClassFinder.<init>(ClassFinder.java:112)
	at org.apache.struts2.convention.PackageBasedActionConfigBuilder.findActions(PackageBasedActionConfigBuilder.java:390)
	at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:347)
	at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
	at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:268)
	at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)
	at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:445)
	at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:489)
	at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)
	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)
	at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:281)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:262)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:107)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4775)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5452)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:744)

Simple test case attached.

tar xvf jdk8test.tar
cd jdk8test
mvn tomcat7:run
http://localhost:8080/jdk8test

Issue Links

• breaks: WW-4435 CXF broken with upgrade of ASM 5 since Struts 2.3.20
• is duplicated by: WW-4431 Java 8 support - lambda in action classes