I'm currently working on updating a big program from Java 1.6 to 1.8. I'm also switching to a newer version of eclipse for this and had to struggle with quite a few workspace problems.
Anyway I'm currently stuck on one of the projects not being able to instantiate a class on lauch, because a jar that is in the projects Plug-in dependencies seemingly cannot find a class from a jar that is within the projects referenced libraries.
When trying to launch the project I'm getting the following stacktrace:
!ENTRY org.eclipse.osgi 4 0 2019-02-14 09:03:41.421
!MESSAGE Application error
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in "at.jku.mevss.product" was unable to instantiate class "at.jku.mevss.product.application.DistributionServerApplication".
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:200)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:194)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:934)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:246)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:63)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:391)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:246)
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:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
at org.eclipse.equinox.launcher.Main.run(Main.java:1501)
at org.eclipse.equinox.launcher.Main.main(Main.java:1474)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/ui/application/WorkbenchAdvisor
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getConstructor0(Class.java:3075)
at java.lang.Class.newInstance(Class.java:412)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:190)
... 16 more
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.ui.workbench (116).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:557)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:331)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:39)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:414)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:153)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 21 more
Caused by: org.osgi.framework.BundleException: Error starting module.
at org.eclipse.osgi.container.Module.doStart(Module.java:593)
at org.eclipse.osgi.container.Module.start(Module.java:452)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:471)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117)
... 30 more
Caused by: java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getConstructor0(Class.java:3075)
at java.lang.Class.newInstance(Class.java:412)
at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:766)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:719)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1005)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:357)
at org.eclipse.osgi.container.Module.doStart(Module.java:584)
... 33 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError cannot be found by org.eclipse.ui.workbench_3.112.0.v20180906-1121
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:511)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:414)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:153)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 42 more
An error has occurred. See the log file
D:\RCPClients\MCC\.metadata\.log.
From my understanding within the product project the workbench.jar is unable to locate the SWTError class from the org.eclipes.swt.xxx.jar. I've confirmed that both jars are included in the references, though workbench is a Plug-in dependency, and org.eclipes.swt.xxx.jar is just a referenced library.
Do I possibly have to include org.eclipes.swt.xxx.jar somewhere else, so workbench.jar can properly access it? The same code was fully functional under Java 1.6, but I guess this is probably rather a problem in workspace setup, than a problem generated by trying to switch to 1.8.
Thanks in advance!
