LinkageError while accessing classes using ProxyFactory ------------------------------------------------------- Key: FORGE-897 URL: https://issues.jboss.org/browse/FORGE-897 Project: Forge Issue Type: Bug Components: UI - Eclipse Affects Versions: 2.0.0.Alpha3 Reporter: George Gastaldi Assignee: Lincoln Baxter III Priority: Blocker Fix For: 2.0.0.Alpha4 Attachments: linkage_error2.txt When the Eclipse plugin is started, choose New Project, fill in the required information, select "Forge Addon" as the project type and click next. The following error occurs: {code} May 10, 2013 8:16:42 PM org.jboss.forge.container.ForgeImpl start INFO: Detected changes in repository [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository (Immutable)]. May 10, 2013 8:16:42 PM org.jboss.forge.container.ForgeImpl start INFO: Detected changes in repository [/home/ggastald/.forge/addons]. May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:facets,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:addon-manager,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:addons,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:javaee,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:javaee-spi,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:parser-java,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:maven,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:projects,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:dependencies,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:resources,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:ui,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:environment,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:ui-hints,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: > Starting container [org.jboss.forge:convert,2.0.0-SNAPSHOT] [/Downloads/workspace/jbosstools-forge/plugins/org.jboss.tools.forge2.runtime/addon-repository] May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:javaee-spi,2.0.0-SNAPSHOT] - 25ms May 10, 2013 8:16:42 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:ui-hints,2.0.0-SNAPSHOT] - 19ms May 10, 2013 8:16:42 PM org.jboss.weld.bootstrap.WeldBootstrap <clinit> INFO: WELD-000900 2.0.0 (Final) May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.bootstrap.WeldBootstrap startContainer INFO: WELD-000101 Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously. May 10, 2013 8:16:43 PM org.jboss.weld.interceptor.util.InterceptionTypeRegistry <clinit> WARNING: Class 'javax.ejb.PostActivate' not found, interception based on it is not enabled May 10, 2013 8:16:43 PM org.jboss.weld.interceptor.util.InterceptionTypeRegistry <clinit> WARNING: Class 'javax.ejb.PrePassivate' not found, interception based on it is not enabled May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:parser-java,2.0.0-SNAPSHOT] - [class org.jboss.forge.parser.java.JavaSourceFactoryImpl, class org.jboss.forge.parser.java.resources.JavaResourceGenerator] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:addons,2.0.0-SNAPSHOT] - [class org.jboss.forge.addons.facets.ForgeAddonFacet, class org.jboss.forge.addons.facets.ForgeAddonAPIFacet, class org.jboss.forge.addons.facets.ForgeAddonTestFacet, class org.jboss.forge.addons.ForgeAddonSetupStep, class org.jboss.forge.addons.facets.ForgeContainerAPIFacet, class org.jboss.forge.addons.facets.ForgeAddonSPIFacet, class org.jboss.forge.addons.ForgeAddonProjectType, class org.jboss.forge.addons.facets.ForgeAddonImplFacet] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:convert,2.0.0-SNAPSHOT] - [class org.jboss.forge.convert.impl.Converters$2, interface org.jboss.forge.convert.Converter, class org.jboss.forge.convert.impl.ConverterFactoryImpl, class org.jboss.forge.convert.impl.Converters$1] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:convert,2.0.0-SNAPSHOT] - 1194ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:addons,2.0.0-SNAPSHOT] - 1209ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:parser-java,2.0.0-SNAPSHOT] - 1204ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:facets,2.0.0-SNAPSHOT] - [class org.jboss.forge.facets.FacetFactoryImpl] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:facets,2.0.0-SNAPSHOT] - 1223ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:environment,2.0.0-SNAPSHOT] - [class org.jboss.forge.environment.impl.EnvironmentImpl] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:ui,2.0.0-SNAPSHOT] - [class org.jboss.forge.ui.impl.UISelectOneImpl, interface org.jboss.forge.ui.input.UIInput, class org.jboss.forge.ui.impl.facets.HintsFacetImpl, class org.jboss.forge.ui.impl.UISelectManyImpl, interface org.jboss.forge.ui.input.UISelectMany, interface org.jboss.forge.ui.input.UIInputMany, interface org.jboss.forge.ui.input.UISelectOne] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:ui,2.0.0-SNAPSHOT] - 1214ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:dependencies,2.0.0-SNAPSHOT] - [] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:addon-manager,2.0.0-SNAPSHOT] - [class org.jboss.forge.addon.manager.impl.commands.AddonRemoveCommand, class org.jboss.forge.addon.manager.impl.AddonManagerImpl, class org.jboss.forge.addon.manager.impl.commands.AddonInstallCommand] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:addon-manager,2.0.0-SNAPSHOT] - 1228ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:javaee,2.0.0-SNAPSHOT] - [class org.jboss.forge.javaee.cdi.CDIFacetImpl, class org.jboss.forge.javaee.ejb.EJBFacetImpl] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:projects,2.0.0-SNAPSHOT] - [class org.jboss.forge.projects.impl.NewProjectWizard, class org.jboss.forge.projects.impl.ProjectFactoryImpl, class org.jboss.forge.projects.impl.DependencyInstallerImpl, class org.jboss.forge.projects.impl.NewProjectWizard$2] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:javaee,2.0.0-SNAPSHOT] - 1228ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:dependencies,2.0.0-SNAPSHOT] - 1218ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:resources,2.0.0-SNAPSHOT] - [class org.jboss.forge.resource.converter.FileResourceConverterGenerator, class org.jboss.forge.resource.converter.DirectoryResourceConverter, class org.jboss.forge.resource.FileResourceGenerator, class org.jboss.forge.resource.converter.FileResourceConverter, class org.jboss.forge.resource.converter.ResourceConverterGenerator, class org.jboss.forge.resource.converter.ResourceConverter, class org.jboss.forge.resource.URLResourceGenerator, class org.jboss.forge.resource.converter.DirectoryResourceConverterGenerator, class org.jboss.forge.resource.ResourceFactoryImpl] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:resources,2.0.0-SNAPSHOT] - 1222ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:environment,2.0.0-SNAPSHOT] - 1213ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:projects,2.0.0-SNAPSHOT] - 1221ms May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$AddonContainerStartup call INFO: Services loaded from addon [org.jboss.forge:maven,2.0.0-SNAPSHOT] - [class org.jboss.forge.maven.projects.MavenProjectLocator, class org.jboss.forge.maven.projects.facets.MavenResourceFacet, class org.jboss.forge.maven.dependencies.MavenDependencyResolver, class org.jboss.forge.maven.projects.facets.MavenJavaSourceFacet, class org.jboss.forge.maven.projects.facets.MavenPackagingFacet, class org.jboss.forge.maven.projects.MavenProjectType, class org.jboss.forge.maven.projects.MavenMultiModuleProvider, class org.jboss.forge.maven.resources.MavenResourceGenerator, class org.jboss.forge.maven.projects.MavenPluginFacetImpl, class org.jboss.forge.maven.projects.facets.MavenMetadataFacet, class org.jboss.forge.maven.projects.MavenFacetImpl, class org.jboss.forge.maven.projects.facets.MavenDependencyFacet] May 10, 2013 8:16:44 PM org.jboss.forge.container.impl.AddonRunnable$3 call INFO: >> Started container [org.jboss.forge:maven,2.0.0-SNAPSHOT] - 1331ms !SESSION 2013-05-10 20:16:31.096 ----------------------------------------------- eclipse.buildId=M20120914-1800 java.version=1.7.0_21 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -product org.eclipse.sdk.ide Command-line arguments: -product org.eclipse.sdk.ide -data /Downloads/workspace/../runtime-EclipseApplication -dev file:/Downloads/workspace/.metadata/.plugins/org.eclipse.pde.core/Eclipse Application/dev.properties -os linux -ws gtk -arch x86_64 -consoleLog !ENTRY org.eclipse.ui 4 0 2013-05-10 20:17:32.899 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.RuntimeException: by java.lang.LinkageError: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader): attempted duplicate class definition for name: "org/jboss/forge/facets/AbstractFaceted_$$_javassist_29" at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:515) at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:492) at javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:428) at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:400) at org.jboss.forge.proxy.ClassLoaderAdapterCallback$2.call(ClassLoaderAdapterCallback.java:450) at org.jboss.forge.container.util.ClassLoaders.executeIn(ClassLoaders.java:34) at org.jboss.forge.proxy.ClassLoaderAdapterCallback.enhance(ClassLoaderAdapterCallback.java:384) at org.jboss.forge.proxy.ClassLoaderAdapterCallback.enhanceResult(ClassLoaderAdapterCallback.java:173) at org.jboss.forge.proxy.ClassLoaderAdapterCallback.access$300(ClassLoaderAdapterCallback.java:29) at org.jboss.forge.proxy.ClassLoaderAdapterCallback$1.call(ClassLoaderAdapterCallback.java:83) at org.jboss.forge.container.util.ClassLoaders.executeIn(ClassLoaders.java:34) at org.jboss.forge.proxy.ClassLoaderAdapterCallback.invoke(ClassLoaderAdapterCallback.java:58) at org.jboss.forge.facets.AbstractFaceted_$$_javassist_35.setValue(AbstractFaceted_$$_javassist_35.java) at org.jboss.forge.ui.util.InputComponents.setManyInputValue(InputComponents.java:125) at org.jboss.forge.ui.util.InputComponents.setValueFor(InputComponents.java:82) at org.jboss.tools.forge.ui.ext.control.CheckboxTableControlBuilder.build(CheckboxTableControlBuilder.java:56) at org.jboss.tools.forge.ui.ext.wizards.ForgeWizardPage.createControls(ForgeWizardPage.java:93) at org.jboss.tools.forge.ui.ext.wizards.ForgeWizardPage.createControl(ForgeWizardPage.java:73) at org.eclipse.jface.wizard.WizardDialog.updateForPage(WizardDialog.java:1246) at org.eclipse.jface.wizard.WizardDialog.access$4(WizardDialog.java:1238) at org.eclipse.jface.wizard.WizardDialog$8.run(WizardDialog.java:1227) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.wizard.WizardDialog.showPage(WizardDialog.java:1225) at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:915) at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:428) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1276) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3562) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3186) at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) at org.eclipse.jface.window.Window.open(Window.java:801) at org.jboss.tools.forge.ui.ext.dialog.UICommandListDialog.openWizard(UICommandListDialog.java:93) at org.jboss.tools.forge.ui.ext.dialog.UICommandListDialog.access$0(UICommandListDialog.java:85) at org.jboss.tools.forge.ui.ext.dialog.UICommandListDialog$1.widgetDefaultSelected(UICommandListDialog.java:71) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:119) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1276) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3562) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3186) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1045) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:940) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:587) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:542) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180) 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:601) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) at org.eclipse.equinox.launcher.Main.main(Main.java:1414) Caused by: javassist.CannotCompileException: by java.lang.LinkageError: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader): attempted duplicate class definition for name: "org/jboss/forge/facets/AbstractFaceted_$$_javassist_29" at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:170) at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:507) ... 62 more Caused by: java.lang.LinkageError: loader (instance of org/eclipse/osgi/internal/baseadaptor/DefaultClassLoader): attempted duplicate class definition for name: "org/jboss/forge/facets/AbstractFaceted_$$_javassist_29" at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:791) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:182) at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:164) ... 63 more {code}