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question asked: Mar 29 '11, 11:28 a.m.
question was seen: 4,016 times
last updated: Jun 15 '12, 1:35 p.m.

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Exception using ILoadFilter

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Jeff Care (1.0k●38●33) | asked Mar 29 '11, 11:28 a.m.
I have a simple ILoadFilter implemention (see below) that I'm trying to use with an ILoadOperation. Here's the exception that's being raised when I try to use it: 

java.lang.ClassCastException: com.ibm.mrbuild.rtc.applications.ExtractSnapshot$ExtractFilter incompatible with com.ibm.team.filesystem.client.internal.load.LoadFilter

	at com.ibm.team.filesystem.client.internal.load.LoadFilter.toBytes(LoadFilter.java:36)

	at com.ibm.team.filesystem.client.internal.load.MergeLoadMutator.getClientDataForSharingDescriptor(MergeLoadMutator.java:785)

	at com.ibm.team.filesystem.client.internal.load.MergeLoadMutator.createNewFolder(MergeLoadMutator.java:1391)

	at com.ibm.team.filesystem.rcp.core.internal.resources.EclipseWorkspaceMergeLoadMutator.createNewFolder(EclipseWorkspaceMergeLoadMutator.java:94)

	at com.ibm.team.filesystem.client.internal.load.MergeLoadMutator.load(MergeLoadMutator.java:528)

	at com.ibm.team.filesystem.client.internal.load.MergeLoadMutator.execute(MergeLoadMutator.java:285)

	at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:89)

	at com.ibm.team.filesystem.client.internal.operations.LoadOperation.load(LoadOperation.java:972)

	at com.ibm.team.filesystem.client.internal.operations.LoadOperation$1.run(LoadOperation.java:626)

	at com.ibm.team.filesystem.rcp.core.internal.resources.ResourceSharingManager$1.run(ResourceSharingManager.java:200)

	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)

	at com.ibm.team.filesystem.rcp.core.internal.resources.ResourceSharingManager.runWithinFileSystemLock(ResourceSharingManager.java:212)

	at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.runWithinFileSystemLock(FileSystemOperation.java:164)

	at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.runWithinFileSystemLock(FileSystemOperation.java:144)

	at com.ibm.team.filesystem.client.internal.operations.LoadOperation.execute(LoadOperation.java:657)

	at com.ibm.team.filesystem.client.internal.operations.FileSystemOperation.run(FileSystemOperation.java:89)

	at com.ibm.mrbuild.rtc.applications.ExtractSnapshot.run(ExtractSnapshot.java:158)

	at com.ibm.mrbuild.core.cli.Application.start(Application.java:110)

	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)

	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:368)

	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:600)

	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)

	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)

	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

	at org.eclipse.equinox.launcher.Main.main(Main.java:1287)


Here's the filter code: 

  private static class ExtractFilter implements ILoadFilter {



    @Override

    public boolean include (final String name) {



      System.out.printf ("filter %1$s%n", name);

      return true;

    }

  }


Any suggestions on what I can do to work around this? Seems like a bug to me.
Comments
Evan Hughes commented Jun 15 '12, 1:35 p.m.
JAZZ DEVELOPER

@carej You should raise a bug.

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Jérôme RAULINE (21●2●2) | answered Jun 15 '12, 9:37 a.m.
Hi,

Thanks to the code, you can't "simply" implement the java interface :-(
You can do it this way :

ILoadFilter myFilter = new LoadFilter(new String[0]) {
        public boolean include(String name) {
// Your code here
return false;
        }
        };
Comments
Jeff Care commented Jun 15 '12, 10:00 a.m.

I can see how that would work but the LoadFilter class that you refer to is internal. I still say this is a bug: the interface specifies ILoadFilter so ANY ILoadFilter should work.

Jérôme RAULINE commented Jun 15 '12, 10:12 a.m. | edited Jun 15 '12, 1:35 p.m.

Off course it's a bug, I totally agree.

There is another internal class I use to load a workspace on disk from API : com.ibm.team.filesystem.client.internal.PathLocation

org.eclipse.core.runtime.IPath rootPath = ....
ISandbox sandbox = FileSystemCore.getSharingManager().getSandbox(new PathLocation(rootPath), false);

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