Fixed a cloning issue and some tests

jme3-core/src/plugins/java/com/jme3/material/plugins/J3MLoader.java

@@ -615,7 +615,6 @@ public class J3MLoader implements AssetLoader {
     private void readTechnique(Statement techStat) throws IOException{
         isUseNodes = false;
         String[] split = techStat.getLine().split(whitespacePattern);
-        Cloner cloner = new Cloner();
 
         String name;
         if (split.length == 1) {
@@ -670,7 +669,12 @@ public class J3MLoader implements AssetLoader {
         }else if (shaderNames.containsKey(Shader.ShaderType.Vertex) && shaderNames.containsKey(Shader.ShaderType.Fragment)) {
             if (shaderLanguages.size() > 1) {
                 for (int i = 1; i < shaderLanguages.size(); i++) {
-                    TechniqueDef td = cloner.clone(technique);
+                    TechniqueDef td = null;
+                    try {
+                        td = (TechniqueDef) technique.clone();
+                    } catch (CloneNotSupportedException e) {
+                        e.printStackTrace();
+                    }
                     td.setShaderFile(shaderNames, shaderLanguages.get(i));
                     techniqueDefs.add(td);
                 }

jme3-core/src/test/java/com/jme3/asset/LoadShaderSourceTest.java

@@ -45,6 +45,7 @@ public class LoadShaderSourceTest {
         AssetManager assetManager = new DesktopAssetManager();
         assetManager.registerLocator(null, ClasspathLocator.class);
         assetManager.registerLoader(GLSLLoader.class, "frag");
+        assetManager.registerLoader(GLSLLoader.class, "glsllib");
         String showNormals = (String) assetManager.loadAsset("Common/MatDefs/Misc/ShowNormals.frag");
         System.out.println(showNormals);
     }

jme3-core/src/test/java/com/jme3/renderer/OpaqueComparatorTest.java

@@ -168,14 +168,11 @@ public class OpaqueComparatorTest {
         lightingMatPreNormalPass.setName("TechNorm");
         lightingMatPreNormalPass.selectTechnique("PreNormalPass", renderManager);
         
-        lightingMatGBuf.setName("TechGBuf");
-        lightingMatGBuf.selectTechnique("GBuf", renderManager);
-        
         lightingMatGlow.setName("TechGlow");
         lightingMatGlow.selectTechnique("Glow", renderManager);
         
         testSort(lightingMatGlow, lightingPreShadow, lightingMatPreNormalPass,
-                 lightingMatDefault, lightingPostShadow, lightingMatGBuf);
+                lightingMatDefault, lightingPostShadow);
     }
     
     @Test(expected = AssertionError.class)