[WW-4431] Java 8 support - lambda in action classes

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.3.16.3
• Fix Version/s: 2.5
• Component/s: Core Actions
• Labels: java8

Environment

Jdk 1.8

• Assignee: Lukasz Lenart
• Reporter: Paweł Wielgus
• Created: 14/Dec/14 17:58
• Updated: 18/Dec/14 17:23
• Resolved: 18/Dec/14 17:22

Description

When there is any lamba expression placed inside of action class, during startup struts is presenting error like below:

com.opensymphony.xwork2.util.logging.commons.CommonsLogger error
SEVERE: Unable to read class [com.ppp.elsevier.struts.action.admin.spa.bannerBox.SampleAction]
java.lang.ArrayIndexOutOfBoundsException: 10572
	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.getFilter(ApplicationFilterConfig.java:298)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:119)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4076)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4730)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
	at org.apache.catalina.core.StandardService.start(StandardService.java:525)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

After this exception application is starting normally but SampleAction is not configured and not accessible.

If lambda expression is removed from action class (i.e. the lambda is moved to non action class and referenced from inside action), all is working without problems.

Issue Links

• duplicates: WW-4347 Support for JDK 8 Lambdas