We are getting NullPointerExceptions in MRUMemmoryStore when under load. This
should not be. The keys looked up are the XSP logicsheets, and this is the
Exception stacktrace available.
ERROR 99504 [cocoon ] (Thread-40): Error in MRUMemoryStore!
java.lang.NullPointerException
at
org.apache.cocoon.components.store.MRUMemoryStore.checkSeriazable(MRUMemoryStore.java:349)
at
org.apache.cocoon.components.store.MRUMemoryStore.free(MRUMemoryStore.java:337)
at
org.apache.cocoon.components.store.MRUMemoryStore.hold(MRUMemoryStore.java:242)
at
org.apache.cocoon.components.store.MRUMemoryStore.store(MRUMemoryStore.java:227)
at
org.apache.cocoon.components.language.markup.AbstractMarkupLanguage.configure(AbstractMarkupLanguage.java:132)
at
org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:108)
at
org.apache.avalon.excalibur.component.DefaultComponentHandler.get(DefaultComponentHandler.java:92)
at
org.apache.avalon.excalibur.component.ExcaliburComponentSelector.select(ExcaliburComponentSelector.java:246)
at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.load(ProgramGeneratorImpl.java:230)
at
org.apache.cocoon.generation.ServerPagesGenerator.setup(ServerPagesGenerator.java:153)
at
org.apache.cocoon.components.pipeline.AbstractEventPipeline.setupPipeline(AbstractEventPipeline.java:151)
at
org.apache.cocoon.components.pipeline.CachingEventPipeline.setup(CachingEventPipeline.java:246)
at
org.apache.cocoon.components.pipeline.CachingEventPipeline.generateKey(CachingEventPipeline.java:108)
at
org.apache.cocoon.components.pipeline.CachingStreamPipeline.process(CachingStreamPipeline.java:279)
at org.apache.cocoon.www.sitemap_xmap.wildcardMatchN18B(sitemap_xmap.java:1547)
at org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:1051)
at org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:997)
at org.apache.cocoon.sitemap.Handler.process(Handler.java:160)
at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:103)
at org.apache.cocoon.Cocoon.process(Cocoon.java:354)
at org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:488)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:500)
at org.apache.tomcat.core.Handler.service(Handler.java:223)
at org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:448)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:788)
at org.apache.tomcat.core.ContextManager.service(ContextManager.java:701)
at
org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:143)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:424)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:497)
at java.lang.Thread.run(Thread.java:484)
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