HADOOP-1574 Concurrent creates of a table named 'X' all succeed

Actually add the below file.
A src/contrib/hbase/src/java/org/apache/hadoop/hbase/TableExistsException.java
    Added.


git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@556335 13f79535-47bb-0310-9956-ffa450edef68

src/contrib/hbase/src/java/org/apache/hadoop/hbase/TableExistsException.java

@@ -0,0 +1,28 @@
+/**
+ * Copyright 2007 The Apache Software Foundation
+ *
+ * Licensed 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.hadoop.hbase;
+
+import java.io.IOException;
+
+public class TableExistsException extends IOException {
+  public TableExistsException() {
+    super();
+  }
+
+  public TableExistsException(String s) {
+    super(s);
+  }
+}