Bug 80912 JUnit tests can't be launched with a 1.3 level jvm anymore
In latest 3.1 integration builds the eclipse textrunner doesn't work if you select a 1.3 level jvm for running the test. It crashes for a dependency from IdentityHashMap (java 1.4). Although eclipse need a 1.4 jre, selecting a 1.3 jre from the run/debug configuration should be possible: this is a show stopper for anyone needs to compile projects using jre 1.3. build 200412140010 java.lang.NoClassDefFoundError: java/util/IdentityHashMap at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:448) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:343) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:195)
org.eclipse.jdt.junit.runtime/src/org/eclipse/jdt/internal/junit/runner/RemoteTestRunner.java
else if(args[i].toLowerCase().equals("-host")) { 
				fHost= args[i+1];
				i++;
			}
			else if(args[i].toLowerCase().equals("-rerun")) { 
				fRerunTest= args[i+1];
				i++;
			}
			else if(args[i].toLowerCase().equals("-keepalive")) { 
				fKeepAlive= true;
			}
			else if(args[i].toLowerCase().equals("-debugging") || args[i].toLowerCase().equals("-debug")){ 
			    fDebugMode= true;
			}
			else if(args[i].toLowerCase().equals("-version")){ 
			    fVersion= args[i+1];
			    i++;
			}
		}
		if(fTestClassNames == null || fTestClassNames.length == 0)
			throw new IllegalArgumentException(JUnitMessages.getString("RemoteTestRunner.error.classnamemissing")); 
		if (fPort == -1)
			throw new IllegalArgumentException(JUnitMessages.getString("RemoteTestRunner.error.portmissing")); 
		if (fDebugMode)
			System.out.println("keepalive "+fKeepAlive); 
	}
	private void readTestNames(String testNameFile) throws IOException {
		BufferedReader br= new BufferedReader(new FileReader(new File(testNameFile)));
		try {
			String line;