added sources for Slick

Former-commit-id: 1647fa32ef6894bd7db44f741f07c2f4dcdf9054
Former-commit-id: 0e5810dcfbe1fd59b13e7cabe9f1e93c5542da2d

lib/slick-source/org/newdawn/slick/opengl/CompositeIOException.java

@@ -0,0 +1,42 @@
+package org.newdawn.slick.opengl;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+/**
+ * A collection of IOException that failed image data loading
+ * 
+ * @author kevin
+ */
+public class CompositeIOException extends IOException {
+	/** The list of exceptions causing this one */
+	private ArrayList exceptions = new ArrayList();
+	
+	/**
+	 * Create a new composite IO Exception
+	 */
+	public CompositeIOException() {
+		super();
+	}
+	
+	/**
+	 * Add an exception that caused this exceptino
+	 * 
+	 * @param e The exception
+	 */
+	public void addException(Exception e) {
+		exceptions.add(e);
+	}
+	
+	/**
+	 * @see java.lang.Throwable#getMessage()
+	 */
+	public String getMessage() {
+		String msg = "Composite Exception: \n";
+		for (int i=0;i<exceptions.size();i++) {
+			msg += "\t"+((IOException) exceptions.get(i)).getMessage()+"\n";
+		}
+		
+		return msg;
+	}
+}