diff --git a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java
index 5fbaaaa52..a0511f6ad 100644
--- a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java
+++ b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLDebugDesktop.java
@@ -7,11 +7,13 @@ public class GLDebugDesktop extends GLDebugES implements GL2, GL3, GL4 {
 
     private final GL2 gl2;
     private final GL3 gl3;
+    private final GL4 gl4;
     
     public GLDebugDesktop(GL gl, GLExt glext, GLFbo glfbo) {
         super(gl, glext, glfbo);
         this.gl2 = gl instanceof GL2 ? (GL2) gl : null;
         this.gl3 = gl instanceof GL3 ? (GL3) gl : null;
+        this.gl4 = gl instanceof GL4 ? (GL4) gl : null;
     }
     
     public void glAlphaFunc(int func, float ref) {
@@ -87,4 +89,9 @@ public class GLDebugDesktop extends GLDebugES implements GL2, GL3, GL4 {
         checkError();
     }
 
+    @Override
+    public void glPatchParameter(int count) {
+        gl4.glPatchParameter(count);
+        checkError();
+    }
 }
diff --git a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
index 7b928202f..80abfaf9c 100644
--- a/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
+++ b/jme3-core/src/main/java/com/jme3/renderer/opengl/GLRenderer.java
@@ -56,6 +56,7 @@ import com.jme3.util.BufferUtils;
 import com.jme3.util.ListMap;
 import com.jme3.util.NativeObjectManager;
 import java.nio.*;
+import java.util.Arrays;
 import java.util.EnumMap;
 import java.util.EnumSet;
 import java.util.HashSet;