Fix test that now throws ODE.

Author: jpobst

tests/Java.Interop-Tests/Java.Interop/JniRuntimeTest.cs

@@ -58,7 +58,7 @@ public void Dispose_ClearsJniEnvironment ()
 				JniRuntime.SetCurrent (r);
 				Assert.AreEqual (r, JniEnvironment.Runtime);
 				r.Dispose ();
-				Assert.Throws<NotSupportedException>(() => {
+				Assert.Throws<ObjectDisposedException>(() => {
 					var env = JniEnvironment.Runtime;
 				});
 			});