Scripting exception can now wrap the original exception.

src/helma/scripting/ScriptingException.java

@@ -4,49 +4,64 @@
 package helma.scripting;
 
 
+import java.io.PrintWriter;
+import java.io.PrintStream;
+
 /**
  * The base class for exceptions thrown by Helma scripting package
  */
 public class ScriptingException extends Exception {
 
+    Exception wrapped;
+
     /**
      * Construct a ScriptingException given an error message
      */
     public ScriptingException (String msg) {
 	super (msg);
+	wrapped = null;
     }
 
+    /**
+     * Construct a ScriptingException given an error message
+     */
+    public ScriptingException (Exception w) {
+	wrapped = w;
+    }
+
+    public String toString () {
+	if (wrapped == null)
+	    return super.toString ();
+	else
+	    return wrapped.toString ();
+    }
+
+    public String getMessage () {
+	if (wrapped == null)
+	    return super.getMessage ();
+	else
+	    return wrapped.getMessage ();
+    }
+
+    public void printStackTrace () {
+	if (wrapped == null)
+	    super.printStackTrace ();
+	else
+	    wrapped.printStackTrace ();
+    }
+
+    public void printStackTrace (PrintStream stream) {
+	if (wrapped == null)
+	    super.printStackTrace (stream);
+	else
+	    wrapped.printStackTrace (stream);
+    }
+
+    public void printStackTrace (PrintWriter writer) {
+	if (wrapped == null)
+	    super.printStackTrace (writer);
+	else
+	    wrapped.printStackTrace (writer);
+    }
 
 }
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