Add (and throw) an exception if the powerpoint file is corrupt in a way that some seem to be (first record is of type 0000, and length is 0xFFFF)

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@365617 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hslf/exceptions/CorruptPowerPointFileException.java

@@ -0,0 +1,34 @@
+
+/* ====================================================================
+   Copyright 2002-2004   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.poi.hslf.exceptions;
+
+/**
+ * This exception is thrown when we try to open a PowerPoint file, and
+ *  something is fundamentally broken about it.
+ *
+ * @author Nick Burch
+ */
+
+public class CorruptPowerPointFileException extends IllegalStateException
+{
+	public CorruptPowerPointFileException(String s) {
+		super(s);
+	}
+}