[jbosstools-issues] [JBoss JIRA] (JBIDE-14860) httpclient classloading issue shows up in Stacks when using an invalid stacks url

[Fred Bricon (JIRA)]

Fred Bricon created JBIDE-14860:
-----------------------------------

             Summary: httpclient classloading issue shows up in Stacks when using an invalid stacks url
                 Key: JBIDE-14860
                 URL: https://issues.jboss.org/browse/JBIDE-14860
             Project: Tools (JBoss Tools)
          Issue Type: Feature Request
          Components: common/jst/core
    Affects Versions: 4.1.0.Beta2
            Reporter: Fred Bricon
            Assignee: Rob Stryker
             Fix For: 4.1.0.Beta2


While running JBT with  -Dorg.jboss.examples.stacks.url=http://hangonme-fredapp.rhcloud.com/slow.xsd?delay=10 to test JBIDE-14700, the following exception shows up in the log when the StacksManager tries to fall back on the default Stacks :

{noformat}
!ENTRY org.jboss.tools.stacks.core 2 0 2013-06-13 14:41:15.633
!MESSAGE Stacks from http://hangonme-fredapp.rhcloud.com/slow.xsd?delay=10 can not be read, falling back on default Stacks Client values
java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:479)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
	at org.jboss.tools.maven.project.examples.wizard.NewProjectExamplesStacksRequirementsPage.<init>(NewProjectExamplesStacksRequirementsPage.java:104)
	at org.jboss.tools.maven.project.examples.wizard.NewProjectExamplesStacksRequirementsPage.<init>(NewProjectExamplesStacksRequirementsPage.java:95)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
	at java.lang.Class.newInstance0(Class.java:374)
	at java.lang.Class.newInstance(Class.java:327)
	at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:184)
	at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:905)
	at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
	at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
	at org.jboss.tools.project.examples.wizard.NewProjectExamplesWizard2.createContributedPages(NewProjectExamplesWizard2.java:198)
	at org.jboss.tools.project.examples.wizard.NewProjectExamplesWizard2.addPages(NewProjectExamplesWizard2.java:162)
	at org.jboss.tools.central.wizards.AbstractJBossCentralProjectWizard.addPages(AbstractJBossCentralProjectWizard.java:82)
	at org.eclipse.jface.wizard.WizardDialog.createContents(WizardDialog.java:605)
	at org.eclipse.jface.window.Window.create(Window.java:432)
	at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1104)
	at org.eclipse.jface.window.Window.open(Window.java:791)
	at org.jboss.tools.central.editors.GettingStartedPage.openWizard(GettingStartedPage.java:616)
	at org.jboss.tools.central.editors.GettingStartedPage.access$11(GettingStartedPage.java:607)
	at org.jboss.tools.central.editors.GettingStartedPage$5.linkActivated(GettingStartedPage.java:579)
	at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleActivate(AbstractHyperlink.java:233)
	at org.eclipse.ui.forms.widgets.ImageHyperlink.handleActivate(ImageHyperlink.java:199)
	at org.eclipse.ui.forms.widgets.AbstractHyperlink.handleMouseUp(AbstractHyperlink.java:327)
	at org.eclipse.ui.forms.widgets.AbstractHyperlink.access$2(AbstractHyperlink.java:311)
	at org.eclipse.ui.forms.widgets.AbstractHyperlink$4.handleEvent(AbstractHyperlink.java:125)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	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:354)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
	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:636)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: java.lang.NoClassDefFoundError: org/apache/http/HttpRequest
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:196)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClassHoldingLock(ClasspathManager.java:638)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:613)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:574)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:492)
	at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:465)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:224)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:464)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	at org.jboss.tools.stacks.core.model.StacksManager.getStacks(StacksManager.java:105)
	at org.jboss.tools.stacks.core.model.StacksManager.getStacks(StacksManager.java:54)
	at org.jboss.tools.maven.project.examples.wizard.NewProjectExamplesStacksRequirementsPage$1.run(NewProjectExamplesStacksRequirementsPage.java:110)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	... 55 more
Caused by: java.lang.ClassNotFoundException: org.apache.http.HttpRequest cannot be found by org.jboss.tools.stacks.core_1.0.0.qualifier
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:501)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:421)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:412)
	at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
	... 74 more
{noformat}

Stacks uses httpclient-4.0.1.jar but the eclipse contains and loads an incompatible org.apache.commons.httpclient 3.1.0. 

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