make tests capable of reading OTRE from bin directory (requires a trailing '/').
diff --git a/testplugins/org.eclipse.objectteams.otdt.test.builder/src/org/eclipse/objectteams/otdt/test/builder/OTLaunchEnvironment.java b/testplugins/org.eclipse.objectteams.otdt.test.builder/src/org/eclipse/objectteams/otdt/test/builder/OTLaunchEnvironment.java
index b72f01e..ed1b723 100644
--- a/testplugins/org.eclipse.objectteams.otdt.test.builder/src/org/eclipse/objectteams/otdt/test/builder/OTLaunchEnvironment.java
+++ b/testplugins/org.eclipse.objectteams.otdt.test.builder/src/org/eclipse/objectteams/otdt/test/builder/OTLaunchEnvironment.java
@@ -70,7 +70,10 @@
 	
 	static URL getOTREURL() throws MalformedURLException {
 		IClasspathEntry[] entries = new OTREContainer().getClasspathEntries();
-		return new URL("file:"+entries[0].getPath()); //$NON-NLS-1$
+		String url = "file:"+entries[0].getPath();  //$NON-NLS-1$
+		if (url.endsWith("bin"))  //$NON-NLS-1$
+			url += '/';
+		return new URL(url);
 	}
 	@Override
 	protected Class<?> findClass(String name) throws ClassNotFoundException {