diff --git a/src/main/org/openscience/cdk/modeling/builder3d/ForceFieldConfigurator.java b/src/main/org/openscience/cdk/modeling/builder3d/ForceFieldConfigurator.java
index c675aafd47d..587ad48190c 100644
--- a/src/main/org/openscience/cdk/modeling/builder3d/ForceFieldConfigurator.java
+++ b/src/main/org/openscience/cdk/modeling/builder3d/ForceFieldConfigurator.java
@@ -24,7 +24,6 @@
  */
 package org.openscience.cdk.modeling.builder3d;
 
-import java.io.IOException;
 import java.io.InputStream;
 import java.util.Iterator;
 import java.util.List;
@@ -137,7 +136,18 @@ public void setForceFieldConfigurator(String ffname) throws CDKException {
 			check=this.checkForceFieldType(ffname);
 			ffName=ffname;
 			if (ffName.equals("mm2")) {
-		        setMM2Parameters();
+				//logger.debug("ForceFieldConfigurator: open Force Field mm2");
+				//f = new File(mm2File);
+				//readFile(f);
+				ins = this.getClass().getClassLoader().getResourceAsStream("org/openscience/cdk/modeling/forcefield/data/mm2.prm");
+				//logger.debug("ForceFieldConfigurator: open Force Field mm2 ... READY");
+				mm2 = new MM2BasedParameterSetReader();
+				//logger.debug("ForceFieldConfigurator: mm2 set input stream ... READY");
+				try{
+					this.setMM2Parameters();
+				}catch (Exception ex1){
+					throw new CDKException("Problems with set MM2Parameters due to "+ex1.toString(), ex1);	
+				}
 			}else if (ffName.equals("mmff94") || !check) {
 				//logger.debug("ForceFieldConfigurator: open Force Field mmff94");
 				//f = new File(mmff94File);
@@ -176,23 +186,18 @@ public void setParameters(Map<String, Object> parameterset) {
 	}
 
 	/**
-	 * Configure with MM2 parameters.
-     *
-     * @see MM2BasedParameterSetReader
-     * @throws CDKException unable to load MM2 parameters
+	 *  Sets the parameters attribute of the ForceFieldConfigurator object, default is mm2 force field
 	 */
 	@TestMethod("testSetMM2Parameters")
 	public void setMM2Parameters() throws CDKException{
-        try {
-            MM2BasedParameterSetReader mm2 = new MM2BasedParameterSetReader();
-            mm2.readParameterSets();
-            parameterSet = mm2.getParamterSet();
-            atomTypes = mm2.getAtomTypes();
-        } catch (Exception e) {
-            throw new CDKException("unable to read MM2 parameters", e);
-        }
-    }
-
+		try{
+			mm2.readParameterSets();
+		}catch(Exception ex1){
+			throw new CDKException("Problem within readParameterSets due to:"+ex1.toString(), ex1);
+		}
+		parameterSet = mm2.getParamterSet();
+		atomTypes = mm2.getAtomTypes();
+  }
 	@TestMethod("testSetMMFF94Parameters")
 	public void setMMFF94Parameters() throws Exception{
 		mmff94.readParameterSets();