--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/GraalCompilerTest.java	Wed Mar 13 07:35:34 2013 +0100
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/GraalCompilerTest.java	Wed Mar 13 17:06:30 2013 +0100
@@ -221,7 +221,7 @@
         return method.invoke(receiver, args);
     }
 
-    static class Result {
+    protected static class Result {
 
         final Object returnValue;
         final Throwable exception;
@@ -296,16 +296,28 @@
         Method method = getMethod(name);
         Object receiver = Modifier.isStatic(method.getModifiers()) ? null : this;
 
+        test(method, receiver, args);
+    }
+
+    protected void test(Method method, Object receiver, Object... args) {
         Result expect = executeExpected(method, receiver, args);
         if (runtime == null) {
             return;
         }
+        test(method, expect, receiver, args);
+    }
+
+    protected void test(Method method, Result expect, Object receiver, Object... args) {
         Result actual = executeActual(method, receiver, args);
 
         if (expect.exception != null) {
             Assert.assertTrue("expected " + expect.exception, actual.exception != null);
             Assert.assertEquals(expect.exception.getClass(), actual.exception.getClass());
         } else {
+            if (actual.exception != null) {
+                actual.exception.printStackTrace();
+                Assert.fail("expected " + expect.returnValue + " but got an exception");
+            }
             assertEquals(expect.returnValue, actual.returnValue);
         }
     }

--- a/graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/JTTTest.java	Wed Mar 13 07:35:34 2013 +0100
+++ b/graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/JTTTest.java	Wed Mar 13 17:06:30 2013 +0100
@@ -32,6 +32,7 @@
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
 import com.oracle.graal.compiler.test.*;
+import com.oracle.graal.compiler.test.GraalCompilerTest.*;
 import com.oracle.graal.nodes.*;
 
 /**
@@ -48,6 +49,10 @@
      */
     Object[] argsToBind;
 
+    public JTTTest() {
+        Assert.assertNotNull(runtime);
+    }
+
     @Override
     protected StructuredGraph parse(Method m) {
         StructuredGraph graph = super.parse(m);
@@ -89,10 +94,14 @@
     }
 
     protected void runTest(String name, Object... args) {
-        // System.out.println(getClass().getSimpleName() + "." + name);
-        super.test(name, args);
+        Method method = getMethod(name);
+        Object receiver = Modifier.isStatic(method.getModifiers()) ? null : this;
+
+        Result expect = executeExpected(method, receiver, args);
+
+        test(method, expect, receiver, args);
         this.argsToBind = args;
-        super.test(name, args);
+        test(method, expect, receiver, args);
         this.argsToBind = null;
     }
 }