1 files changed, 46 insertions, 0 deletions
diff --git a/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/concurrency/PossibleDeadlockException.java b/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/concurrency/PossibleDeadlockException.java
new file mode 100644
index 0000000000..3bbfc2d502
--- /dev/null
+++ b/qpid/java/junit-toolkit/src/main/org/apache/qpid/junit/concurrency/PossibleDeadlockException.java
@@ -0,0 +1,46 @@
+/*
+ *
+ * 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.junit.concurrency;
+
+/**
+ * PossibleDeadlockException is used to signal that two test threads being executed by a {@link ThreadTestCoordinator}
+ * may be in a state of deadlock because they are mutually blocking each other or one is waiting on the other and the
+ * other has been blocked elsewhere for longer than a specified timeout.
+ *
+ * <p/><table id="crc"><caption>CRC Card</caption>
+ * <tr><th> Responsibilities <th> Collaborations
+ * <tr><td> Signal a possible state of deadlock between coordinated test threads.
+ * </table>
+ *
+ * @author Rupert Smith
+ */
+public class PossibleDeadlockException extends RuntimeException
+{
+    /**
+     * Create a new possible deadlock execption.
+     *
+     * @param message The exception message.
+     */
+    public PossibleDeadlockException(String message)
+    {
+        super(message);
+    }
+}