Unable to run unit tests in Eclipse on Windows

[GerdP]

I try to execute the test MultipolygonTestTest.
I have the source in the edit window and do a right click into the window, then select
Run as -> JUnit test

This is what I get:
ERROR: java.io.IOException: Failed to open input stream for resource 'resource://data/preferences.xsd'
java.io.IOException: Failed to open input stream for resource 'resource://data/preferences.xsd'
	at org.openstreetmap.josm.io.CachedFile.getInputStream(CachedFile.java:214)
	at org.openstreetmap.josm.data.preferences.PreferencesReader.validateXML(PreferencesReader.java:95)
	at org.openstreetmap.josm.data.preferences.PreferencesReader.validateXML(PreferencesReader.java:84)
	at org.openstreetmap.josm.data.Preferences.load(Preferences.java:572)
	at org.openstreetmap.josm.data.Preferences.init(Preferences.java:678)
	at org.openstreetmap.josm.JOSMFixture.init(JOSMFixture.java:102)
	at org.openstreetmap.josm.data.validation.tests.MultipolygonTestTest.setUp(MultipolygonTestTest.java:45)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
	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)