> I've recently switched to the f20, and each time I shutdown Eclipse, > ABRT reports an error (via abrt-java-connector): > > Uncaught java.lang.ClassNotFoundException exception in thread "main" in > a method java.lang.ClassLoader.loadClass() with signature > (Ljava/lang/String;Z > )Ljava/lang/Class; > Exception in thread "main" > java.lang.ClassNotFoundException: > .usr.lib64.eclipse..plugins.org.eclipse.equinox.launcher_1.3.0.v20131030-1100.jar > at java.net.URLClassLoader$1.run(URLClassLoader.java:366) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/rt.ja > r!/java/net/URLClassLoader$1.class] > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/rt.ja > r!/java/net/URLClassLoader$1.class] > at java.security.AccessController.doPrivileged(Native Method) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/r > t.jar!/java/security/AccessController.class] > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/r > t.jar!/java/net/URLClassLoader.class] > at java.lang.ClassLoader.loadClass(ClassLoader.java:425) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/rt.jar > !/java/lang/ClassLoader.class] > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/li > b/rt.jar!/sun/misc/Launcher$AppClassLoader.class] > at java.lang.ClassLoader.loadClass(ClassLoader.java:358) > [jar:file:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.60-2.4.3.0.fc20.x86_64/jre/lib/rt.jar > !/java/lang/ClassLoader.class] I was able to use SystemTap's Java probe support to do a general search for this : probe java("/usr/lib64/eclipse//plugins/org.eclipse.equinox.launcher_1.3.0.v20131104-1241.jar").class("java.net.URLClassLoader").method("findClass(String):366") { printf("ClassNotFoundException : %s\n", user_string($arg1)) } ... ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities_en ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities_en ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities_en_US ClassNotFoundException : com.sun.org.apache.xml.internal.serializer.XMLEntities_en_US Even without that I was still able to remotely debug as well without seeing the JVM crash so I managed to get a stacktrace. java.lang.ClassNotFoundException: com.sun.org.apache.xml.internal.serializer.XMLEntities at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:412) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.util.ResourceBundle$RBClassLoader.loadClass(ResourceBundle.java:450) at java.util.ResourceBundle$Control.newBundle(ResourceBundle.java:2566) at java.util.ResourceBundle.loadBundle(ResourceBundle.java:1436) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1400) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1354) at java.util.ResourceBundle.findBundle(ResourceBundle.java:1354) at java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1296) at java.util.ResourceBundle.getBundle(ResourceBundle.java:721) at com.sun.org.apache.xml.internal.serializer.CharInfo.<init>(CharInfo.java:183) at com.sun.org.apache.xml.internal.serializer.CharInfo.<init>(CharInfo.java:55) at com.sun.org.apache.xml.internal.serializer.CharInfo$1.run(CharInfo.java:474) at java.security.AccessController.doPrivileged(Native Method) at com.sun.org.apache.xml.internal.serializer.CharInfo.getCharInfoBasedOnPrivilege(CharInfo.java:471) at com.sun.org.apache.xml.internal.serializer.CharInfo.getCharInfo(CharInfo.java:507) at com.sun.org.apache.xml.internal.serializer.ToXMLStream.<clinit>(ToXMLStream.java:59) at com.sun.org.apache.xalan.internal.xsltc.runtime.output.TransletOutputHandlerFactory.getSerializationHandler(TransletOutputHandlerFactory.java:165) at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.getOutputHandler(TransformerImpl.java:461) at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:344) at org.eclipse.jdt.internal.corext.util.History.save(History.java:312) at org.eclipse.jdt.internal.corext.util.History.save(History.java:190) at org.eclipse.jdt.internal.ui.JavaPlugin.stop(JavaPlugin.java:618) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:771) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:764) at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:510) at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:566) at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1206) at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:592) at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:257) at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:215) at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:284) at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:692) at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:600) at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:200) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:645) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:600) at org.eclipse.equinox.launcher.Main.run(Main.java:1459) at org.eclipse.equinox.launcher.Main.main(Main.java:1435) Hope this helps, -- Roland Grunberg -- java-devel mailing list java-devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/java-devel