Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: Java-SDO-beta1
    • Fix Version/s: Java-SDO-1.1
    • Labels:
      None
    • Environment:
      OS X Eclipse 3.3 M7
    • Patch Info:
      Patch Available

      Description

      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

        Attachments

        1. sdo-osgi-export-patch.txt
          2 kB
          Rajini Sivaram
        2. sdo-osgi.txt
          31 kB
          Rajini Sivaram

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              bhunt Bryan Hunt
            • Votes:
              1 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: