override the thread name to make the thread dump more useful, especially in case of a hang.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@27302 71c3de6d-444a-0410-be80-ed276b4c234a

test/src/main/java/org/jvnet/hudson/test/HudsonTestCase.java

@@ -222,6 +222,19 @@ public abstract class HudsonTestCase extends TestCase implements RootAction {
     protected HudsonTestCase() {
     }
 
+    @Override
+    public void runBare() throws Throwable {
+        // override the thread name to make the thread dump more useful.
+        Thread t = Thread.currentThread();
+        String o = getClass().getName()+'.'+t.getName();
+        t.setName("Executing "+getName());
+        try {
+            super.runBare();
+        } finally {
+            t.setName(o);
+        }
+    }
+
     @Override
     protected void setUp() throws Exception {
         env.pin();