diff --git a/tools/cooja/java/se/sics/cooja/plugins/LogScriptEngine.java b/tools/cooja/java/se/sics/cooja/plugins/LogScriptEngine.java
index dbb761232..374c8fc46 100644
--- a/tools/cooja/java/se/sics/cooja/plugins/LogScriptEngine.java
+++ b/tools/cooja/java/se/sics/cooja/plugins/LogScriptEngine.java
@@ -102,13 +102,6 @@ public class LogScriptEngine {
   private long startRealTime;
   private long nextProgress;
 
-  private interface ScriptLog {
-    public void log(String log);
-    public void testOK();
-    public void testFailed();
-    public void generateMessage(long delay, String msg);
-  }
-
   public LogScriptEngine(Simulation simulation) {
     this.simulation = simulation;
   }
diff --git a/tools/cooja/java/se/sics/cooja/plugins/ScriptLog.java b/tools/cooja/java/se/sics/cooja/plugins/ScriptLog.java
new file mode 100644
index 000000000..5048ae69e
--- /dev/null
+++ b/tools/cooja/java/se/sics/cooja/plugins/ScriptLog.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2009, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+package se.sics.cooja.plugins;
+
+
+/* Morty: This interface must be public, otherwise openjdk will fail */
+
+public interface ScriptLog {
+    public void log(String log);
+    public void testOK();
+    public void testFailed();
+    public void generateMessage(long delay, String msg);
+    public void append(String filename, String msg);
+    public void writeFile(String filename, String msg);
+}