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https://issues.apache.org/jira/browse/TUSCANY-1293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12567667#action_12567667
]
Kelvin Goodson commented on TUSCANY-1293:
-----------------------------------------
Rajini,
sorry to take so long to get to this, and thanks for the patch. I'm working
towards getting thsi in for the next release. I note a couple of occasions in
the tests where an exception is caught, and then either output is made to the
System.out, or the exception is ignored. Could you help me understand if in
either of these cases the symptom is truly benign please? If so i will add a
comment to the code. If not then I'll change to let the exception surface
through the test infrastructure.
First is on OSGITestCase ...
// Start all the installed bundles
for (int i = 0; i < bundles.size(); i++) {
Bundle bundle = (Bundle)bundles.get(i);
try {
bundle.start();
} catch (Exception e) {
e.printStackTrace();
System.out.println("Could not start bundle " +
bundle);
}
}
second is in ClassLoaderTestCase (I think I can see this is benign, but could
do with confirmation)
for (int i = 0; i < parentLoaders.length; i++) {
try {
return
parentLoaders[i].loadClass(className);
} catch (Exception e) {
}
}
> SDO does not work with OSGi
> ---------------------------
>
> Key: TUSCANY-1293
> URL: https://issues.apache.org/jira/browse/TUSCANY-1293
> Project: Tuscany
> Issue Type: Bug
> Components: Java SDO Implementation
> Affects Versions: Java-SDO-beta1
> Environment: OS X Eclipse 3.3 M7
> Reporter: Bryan Hunt
> Priority: Blocker
> Fix For: Java-SDO-Next
>
> Attachments: sdo-osgi.txt
>
>
> When I execute:
> XSDHelper.INSTANCE.define(schema, null);
> I end up with a NullPointerException. I've tracked down root cause ...
> The static initializer of the HelperProvider executes this code:
> provider = getInstance(HelperProvider.class.getClassLoader());
> which ends up calling:
> HelperProvider provider = loadImplementation(cl, implName);
> implName is null so
> if (implName == null) {
> implName = getImplementationName(cl);
> }
> ends up calling
> implName = getImplementationName(cl);
> which ends up calling:
> InputStream is = cl.getResourceAsStream(SERVICE_RESOURCE_NAME);
> where SERVICE_RESORUCE_NAME =
> "META-INF/services/commonj.sdo.impl.HelperProvider"
> getResourceAsStream() return null because META-INF/services does not exist in
> the API bundle. It exists in the IMPL bundle and since you are using the
> class loader from the API bundle, it won't work.
> You can set
> -Dcommonj.sdo.impl.HelperProvider=org.apache.tuscany.sdo.helper.HelperProviderImpl
> to get around the above problem, but as soon as
> return (HelperProvider) cl.loadClass(implName).newInstance();
> executes, you get a CalssNotFoundException. Again, this is because you are
> trying to load a class outside the bundle with the wrong class loader.
> tried modifying the API manifest by hand to add
> Eclipse-BuddyPolicy: dependent
> and
> Eclipse-BuddyPolicy: global
> Either of those buddy policies will get past the class loader problem
> (although I believe this is specific to eclipse and won't work for OSGi in
> general), but when HelperProvider is initializing, you get the following
> exception:
> java.lang.ExceptionInInitializerError
> at org.apache.tuscany.sdo.impl.AttributeImpl.<clinit>(AttributeImpl.java:126)
> at
> org.apache.tuscany.sdo.impl.SDOFactoryImpl.createAttribute(SDOFactoryImpl.java:239)
> at org.apache.tuscany.sdo.impl.ClassImpl.<clinit>(ClassImpl.java:68)
> at
> org.apache.tuscany.sdo.impl.SDOFactoryImpl$SDOEcoreFactory.createEClass(SDOFactoryImpl.java:76)
> at
> org.apache.tuscany.sdo.impl.SDOPackageImpl.createEClass(SDOPackageImpl.java:622)
> at
> org.apache.tuscany.sdo.impl.SDOPackageImpl.createPackageContents(SDOPackageImpl.java:550)
> at org.apache.tuscany.sdo.impl.SDOPackageImpl.init(SDOPackageImpl.java:259)
> at org.apache.tuscany.sdo.SDOPackage.<clinit>(SDOPackage.java:76)
> at sun.misc.Unsafe.ensureClassInitialized(Native Method)
> at
> sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:25)
> at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:122)
> at java.lang.reflect.Field.acquireFieldAccessor(Field.java:917)
> at java.lang.reflect.Field.getFieldAccessor(Field.java:898)
> at java.lang.reflect.Field.get(Field.java:357)
> at org.apache.tuscany.sdo.util.SDOUtil.registerStaticTypes(SDOUtil.java:196)
> at
> org.apache.tuscany.sdo.model.impl.ModelFactoryImpl.init(ModelFactoryImpl.java:731)
> at org.apache.tuscany.sdo.model.ModelFactory.<clinit>(ModelFactory.java:41)
> at
> org.apache.tuscany.sdo.helper.TypeHelperImpl.getBuiltInModels(TypeHelperImpl.java:61)
> at org.apache.tuscany.sdo.helper.TypeHelperImpl.<init>(TypeHelperImpl.java:79)
> at
> org.apache.tuscany.sdo.helper.HelperContextImpl.<init>(HelperContextImpl.java:46)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl.createDefaultHelpers(HelperProviderImpl.java:38)
> at
> org.apache.tuscany.sdo.rtlib.helper.HelperProviderBase.<init>(HelperProviderBase.java:78)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl.<init>(HelperProviderImpl.java:31)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> at java.lang.Class.newInstance0(Class.java:350)
> at java.lang.Class.newInstance(Class.java:303)
> at commonj.sdo.impl.HelperProvider.loadImplementation(HelperProvider.java:157)
> at commonj.sdo.impl.HelperProvider.getInstance(HelperProvider.java:126)
> at commonj.sdo.impl.HelperProvider.<clinit>(HelperProvider.java:69)
> at commonj.sdo.helper.XSDHelper.<clinit>(XSDHelper.java:195)
> at notification.sdo.Application.start(Application.java:23)
> at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:153)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
> at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:497)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:436)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1162)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1137)
> Caused by: java.lang.NullPointerException
> at
> org.apache.tuscany.sdo.impl.AttributeImpl.eStaticClass(AttributeImpl.java:73)
> at org.eclipse.emf.ecore.impl.EObjectImpl.eClass(EObjectImpl.java:224)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDynamicInverseAdd(BasicEObjectImpl.java:1413)
> at
> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl.eInverseAdd(EStructuralFeatureImpl.java:514)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eInverseAdd(BasicEObjectImpl.java:1389)
> at org.eclipse.emf.ecore.util.EcoreEList.inverseAdd(EcoreEList.java:282)
> at
> org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:318)
> at org.eclipse.emf.common.util.BasicEList.add(BasicEList.java:626)
> at
> org.eclipse.emf.ecore.impl.EPackageImpl.createEAttribute(EPackageImpl.java:745)
> at
> org.apache.tuscany.sdo.impl.FactoryBase.createDocumentRoot(FactoryBase.java:301)
> at org.apache.tuscany.sdo.impl.FactoryBase.initXSD(FactoryBase.java:156)
> at
> org.apache.tuscany.sdo.model.internal.impl.InternalFactoryImpl.createXSDMetaData(InternalFactoryImpl.java:211)
> at
> org.apache.tuscany.sdo.model.internal.impl.InternalFactoryImpl.initializeMetaData(InternalFactoryImpl.java:206)
> at
> org.apache.tuscany.sdo.model.internal.impl.InternalFactoryImpl.init(InternalFactoryImpl.java:172)
> at
> org.apache.tuscany.sdo.model.internal.InternalFactory.<clinit>(InternalFactory.java:41)
> ... 47 more
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