Avoid printing a stack trace when the test is in fact passing.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@15044 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/test/java/hudson/util/RobustReflectionConverterTest.java

@@ -3,12 +3,18 @@ package hudson.util;
 import junit.framework.TestCase;
 import com.thoughtworks.xstream.XStream;
 import com.thoughtworks.xstream.converters.ConversionException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /**
  * @author Kohsuke Kawaguchi
  */
 public class RobustReflectionConverterTest extends TestCase {
 
+    static {
+        Logger.getLogger(RobustReflectionConverter.class.getName()).setLevel(Level.OFF);
+    }
+
     public void testRobustUnmarshalling() {
         Point p = read(new XStream2());
         assertEquals(p.x,1);