| java.lang.VerifyError and Virgo [message #671666] |
Wed, 18 May 2011 12:06  |
Eclipse User |
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I'm developing a web application on Virgo that uses Spring Http converters. This causes the project to depend on Rome to produce RSS and ATOM feeds. Those dependencies are available in the EBR, so I think I'm good there. When I try to load my ATOM feed, I'm getting a java.lang.VerifyError for a method call inside a Rome class:
May 18, 2011 9:57:56 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet rest threw exception
java.lang.VerifyError: (class: com/sun/syndication/io/impl/Atom10Generator, method: serializeEntry signature: (Lcom/sun/syndication/feed/atom/Entry;Ljava/io/Writer;)V) Incompatible argument to function
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:247)
com.sun.syndication.io.impl.PluginManager.getClasses(PluginManager.java:136)
com.sun.syndication.io.impl.PluginManager.loadPlugins(PluginManager.java:87)
com.sun.syndication.io.impl.PluginManager.<init>(PluginManager.java:55)
com.sun.syndication.io.impl.PluginManager.<init>(PluginManager.java:46)
com.sun.syndication.io.impl.FeedGenerators.<init>(FeedGenerators.java:47)
com.sun.syndication.io.WireFeedOutput.getFeedGenerators(WireFeedOutput.java:53)
com.sun.syndication.io.WireFeedOutput.outputJDom(WireFeedOutput.java:262)
com.sun.syndication.io.WireFeedOutput.output(WireFeedOutput.java:211)
com.sun.syndication.io.WireFeedOutput.output(WireFeedOutput.java:190)
org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter.writeInternal(AbstractWireFeedHttpMessageConverter.java:95)
org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter.writeInternal(AbstractWireFeedHttpMessageConverter.java:1)
org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:181)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.writeWithMessageConverters(AnnotationMethodHandlerAdapter.java:975)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.handleResponseBody(AnnotationMethodHandlerAdapter.java:933)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.getModelAndView(AnnotationMethodHandlerAdapter.java:882)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:428)
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.eclipse.virgo.web.tomcat.ApplicationNameTrackingValve.invoke(ApplicationNameTrackingValve.java:29)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:886)
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2256)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
java.lang.Thread.run(Thread.java:680)
I'm really not sure what could be causing this, and everything I read about java.lang.VerifyError makes it seem like it may be hard to track down.
The following two lines from that trace are what is making me wonder if the problem has something to do with Virgo/OSGi:
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:247)
only because every time I've seen problems related to Class.forName() it seems to be an OSGi related issue.
If you have any ideas what could possibly be going on here, I'd really appreciate your input.
Thanks,
Aaron
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