added test for exception listener; fixed NPE

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@619538 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 50 insertions, 0 deletions

diff --git a/java/common/src/main/java/org/apache/qpid/util/concurrent/Condition.java b/java/common/src/main/java/org/apache/qpid/util/concurrent/Condition.java
new file mode 100644
index 0000000000..bbd1722677
--- /dev/null
+++ b/java/common/src/main/java/org/apache/qpid/util/concurrent/Condition.java
@@ -0,0 +1,50 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.util.concurrent;
+
+
+/**
+ * Condition
+ *
+ */
+
+public class Condition
+{
+
+    private boolean value = false;
+
+    public synchronized void set()
+    {
+        value = true;
+        notifyAll();
+    }
+
+    public synchronized boolean get(long timeout) throws InterruptedException
+    {
+        if (!value)
+        {
+            wait(timeout);
+        }
+
+        return value;
+    }
+
+}