Re: [egit-dev] test m2e build with OSGi support

[Matthias Sohn <matthias.sohn@xxxxxxxxxxxxxx>]

2010/1/9 Igor Fedorenko <ifedorenko@xxxxxxxxxxxx>

As I mentioned earlier, there are couple of known problems with m2e/osgi
support. I consider them minor inconveniences but your opinion may vary.

Specifically,

* On Windows I had to set core.hideDotFiles=false before cloning egit on
cli. Otherwise project import would fail with Access Denied Error
updating .project files. I do not use Windows much, so I don't know
whether this was expected.

Yup, that seems to be necessary on Windows prior to cloning EGit using git CLI
 

* I had to run (right-click) PDE_Tools->Update_Classpath... on egit
projects after import and clean build of all projects after that to get
rid of red problem markers. This is only necessary after initial import
and we need dig deeper into pde to see if there is anything we can do
from m2e end to fix this. (any PDE developers around here who can help?)

Yeah, this removes the red crosses
 

* JGit bundle manifest is re-generated during full/clean build only. To
make manifest generation work during incremental builds, we need to look
more closely at BND. Luckily, bundle manifests do not change too often
and they can be regenerated manually by running Project->Clean... when
needed.

I tried  using freshly installed 3.6 M4 on Windows XP using Sun VM 1.6.0_17-b04.
Project files have proper natures and builders and Eclipse build for all projects succeeds.

What doesn't work is Export Feature (right click) on project org.eclipse.egit-feature it seems 
not to find jgit. Same problem if I try to start EGit from Run Configuration, this fails with

eclipse.buildId=I20091210-1301
java.version=1.6.0_17
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE
Framework arguments:  -product org.eclipse.sdk.ide
Command-line arguments:  -product org.eclipse.sdk.ide -data C:\data\ide\helios/../runtime-EclipseApplication -dev file:C:/data/ide/helios/.metadata/.plugins/org.eclipse.pde.core/Eclipse Application/dev.properties -os win32 -ws win32 -arch x86 -consoleLog


Error
Sat Jan 09 04:39:32 CET 2010
Plug-in org.eclipse.egit.ui was unable to load class org.eclipse.egit.ui.internal.decorators.GitLightweightDecorator.

java.lang.NoClassDefFoundError: org/eclipse/jgit/lib/RepositoryListener
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:183)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:576)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:546)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:477)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass_LockClassLoader(ClasspathManager.java:465)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:445)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:211)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:393)
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:410)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:338)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:232)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:174)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:893)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:52)
at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263)
at org.eclipse.ui.internal.decorators.LightweightDecoratorDefinition$1.run(LightweightDecoratorDefinition.java:124)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.decorators.LightweightDecoratorDefinition.internalGetDecorator(LightweightDecoratorDefinition.java:120)
at org.eclipse.ui.internal.decorators.LightweightDecoratorDefinition.decorate(LightweightDecoratorDefinition.java:251)
at org.eclipse.ui.internal.decorators.LightweightDecoratorManager$LightweightRunnable.run(LightweightDecoratorManager.java:81)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.decorate(LightweightDecoratorManager.java:365)
at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.getDecorations(LightweightDecoratorManager.java:347)
at org.eclipse.ui.internal.decorators.DecorationScheduler$1.ensureResultCached(DecorationScheduler.java:371)
at org.eclipse.ui.internal.decorators.DecorationScheduler$1.run(DecorationScheduler.java:331)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jgit.lib.RepositoryListener
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
... 37 more

I also tried to upgrade m2e in my 3.5.1 but this failed, I'll retry after uninstalling the older m2e version
and reinstalling [1].

Thanks a lot for your support :)

Do you already have SCM support for this m2e version so that we could do 
File > Import > Maven > Maven Projects from SCM ? 
Then we could avoid CLI to clone the repos (I prefer dog fooding as early as possible).

--
Matthias