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  1. ,
    via askubuntu.com by Unknown author

    Set the path for java. Try to look it from here.

  2. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

Solutions on the web

via Stack Overflow by Alan Hoo
, 1 month ago
com/test/commo n/communication/BaseNotificationEvent
via Google Groups by karthic subramanian, 1 year ago
org/zkoss/zk/ui/util/Composer
via GitHub by carnalim
, 1 year ago
com/sksamuel/exts/Logging
java.lang.NoClassDefFoundError: com/sun/source/util/TaskListener at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.eclipse.jdt.apt.core.internal.AnnotationProcessorFactoryLoader.loadJava6FactoryClasses(AnnotationProcessorFactoryLoader.java:638) at org.eclipse.jdt.apt.core.internal.AnnotationProcessorFactoryLoader.loadFactories(AnnotationProcessorFactoryLoader.java:577) at org.eclipse.jdt.apt.core.internal.AnnotationProcessorFactoryLoader.getJava6FactoriesAndAttributesForProject(AnnotationProcessorFactoryLoader.java:455) at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:131) at org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:968) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:489) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:397) at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.compile(BatchImageBuilder.java:184) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:334) at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:63) at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:256) at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:180) at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246) at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304) at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360) at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383) at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:144) at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:235) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)Caused by: java.lang.ClassNotFoundException: com.sun.source.util.TaskListener at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 35 more