[concierge-dev] Fragment Bundle Classpath

["Woodard, David" <David.Woodard@xxxxxxxxxxxx>]

Hello,

Eclipse Kura is now running well in Concierge. One item I can’t seem to resolve is logging. We use log4j and apache-log4j-extras to provide rolling log support. The apache-log4j-extras bundle attaches as a fragment to the log4j bundle. I can use packages exported by the host bundles with no problem, but when I attempt to use packages exported by the fragment bundle I get ClassNotFoundException. I included the error log below. My understanding is that when a fragment bundle attaches to the host, it extends the host’s classpath. I am happy to send a simple test case, bundles, manifest files, or whatever would be helpful.

log4j:ERROR Could not instantiate class [org.apache.log4j.rolling.RollingFileAppender].
java.lang.ClassNotFoundException: org.apache.log4j.rolling.RollingFileAppender
	at org.eclipse.concierge.BundleImpl$Revision$BundleClassLoader.findClass(BundleImpl.java:2403)
	at org.eclipse.concierge.BundleImpl$Revision$BundleClassLoader.loadClass(BundleImpl.java:2382)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:190)
	at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198)
	at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:327)
	at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:124)
	at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:785)
	at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:768)
	at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:648)
	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:514)
	at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:580)
	at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:526)
	at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
	at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)
	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:253)
	at org.eclipse.jetty.util.log.Slf4jLog.<init>(Slf4jLog.java:33)
	at org.eclipse.jetty.util.log.Slf4jLog.<init>(Slf4jLog.java:27)
	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:526)
	at java.lang.Class.newInstance(Class.java:374)
	at org.eclipse.jetty.util.log.Log.initialized(Log.java:156)
	at org.eclipse.jetty.util.log.Log.getRootLogger(Log.java:205)
	at org.eclipse.equinox.http.jetty.internal.EquinoxStdErrLog.setThresholdLogger(EquinoxStdErrLog.java:41)
	at org.eclipse.equinox.http.jetty.internal.Activator.start(Activator.java:56)
	at org.eclipse.concierge.BundleImpl.activate0(BundleImpl.java:489)
	at org.eclipse.concierge.BundleImpl.activate(BundleImpl.java:466)
	at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:420)
	at org.eclipse.concierge.BundleImpl.start(BundleImpl.java:360)
	at org.eclipse.concierge.test.AbstractConciergeTestCase.installAndStartBundle(AbstractConciergeTestCase.java:149)
	at org.eclipse.concierge.test.AbstractConciergeTestCase.installAndStartBundles(AbstractConciergeTestCase.java:132)
	at org.eclipse.concierge.test.KuraTest.test01InstallAndStartLog4j(KuraTest.java:61)
	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:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Thanks,
—Dave