diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ArmatureHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ArmatureHelper.java
index bec0324d8..fab1b6069 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ArmatureHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ArmatureHelper.java
@@ -174,7 +174,7 @@ public class ArmatureHelper extends AbstractBlenderHelper {
             Integer boneIndex = bonesMap.get(name);
             if (boneIndex != null) {
                 Pointer p = (Pointer) bActionChannel.getFieldValue("ipo");
-                if (!p.isNull()) {
+                if (p.isNotNull()) {
                     Structure ipoStructure = p.fetchData(dataRepository.getInputStream()).get(0);
                     Ipo ipo = ipoHelper.createIpo(ipoStructure, dataRepository);
                     tracks.add(ipo.calculateTrack(boneIndex.intValue(), animationFrames[0], animationFrames[1], fps));
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ConstraintHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ConstraintHelper.java
index 6e4a54757..23edc5d76 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ConstraintHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ConstraintHelper.java
@@ -568,7 +568,7 @@ public class ConstraintHelper extends AbstractBlenderHelper {
         IpoHelper ipoHelper = dataRepository.getHelper(IpoHelper.class);
         Map<String, Map<String, Ipo>> constraintsIpos = new HashMap<String, Map<String, Ipo>>();
         Pointer pActions = (Pointer) objectStructure.getFieldValue("action");
-        if (!pActions.isNull()) {
+        if (pActions.isNotNull()) {
             List<Structure> actions = pActions.fetchData(dataRepository.getInputStream());
             for (Structure action : actions) {
                 Structure chanbase = (Structure) action.getFieldValue("chanbase");
@@ -579,7 +579,7 @@ public class ConstraintHelper extends AbstractBlenderHelper {
                     List<Structure> constraintChannels = constChannels.evaluateListBase(dataRepository);
                     for (Structure constraintChannel : constraintChannels) {
                         Pointer pIpo = (Pointer) constraintChannel.getFieldValue("ipo");
-                        if (!pIpo.isNull()) {
+                        if (pIpo.isNotNull()) {
                             String constraintName = constraintChannel.getFieldValue("name").toString();
                             Ipo ipo = ipoHelper.createIpo(pIpo.fetchData(dataRepository.getInputStream()).get(0), dataRepository);
                             ipos.put(constraintName, ipo);
@@ -594,7 +594,7 @@ public class ConstraintHelper extends AbstractBlenderHelper {
         //loading constraints connected with the object's bones
         List<Constraint> constraintsList = new ArrayList<Constraint>();
         Pointer pPose = (Pointer) objectStructure.getFieldValue("pose");//TODO: what if the object has two armatures ????
-        if (!pPose.isNull()) {
+        if (pPose.isNotNull()) {
             //getting pose channels
             List<Structure> poseChannels = ((Structure) pPose.fetchData(dataRepository.getInputStream()).get(0).getFieldValue("chanbase")).evaluateListBase(dataRepository);
             for (Structure poseChannel : poseChannels) {
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/CurvesHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/CurvesHelper.java
index 5eb429e36..8e3662ef6 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/CurvesHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/CurvesHelper.java
@@ -117,7 +117,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
         //getting or creating bevel object
         List<Geometry> bevelObject = null;
         Pointer pBevelObject = (Pointer) curveStructure.getFieldValue("bevobj");
-        if (!pBevelObject.isNull()) {
+        if (pBevelObject.isNotNull()) {
             Pointer pBevelStructure = (Pointer) pBevelObject.fetchData(dataRepository.getInputStream()).get(0).getFieldValue("data");
             Structure bevelStructure = pBevelStructure.fetchData(dataRepository.getInputStream()).get(0);
             bevelObject = this.toCurve(bevelStructure, dataRepository);
@@ -177,7 +177,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
         //getting taper object
         Curve taperObject = null;
         Pointer pTaperObject = (Pointer) curveStructure.getFieldValue("taperobj");
-        if (bevelObject != null && !pTaperObject.isNull()) {
+        if (bevelObject != null && pTaperObject.isNotNull()) {
             Pointer pTaperStructure = (Pointer) pTaperObject.fetchData(dataRepository.getInputStream()).get(0).getFieldValue("data");
             Structure taperStructure = pTaperStructure.fetchData(dataRepository.getInputStream()).get(0);
             taperObject = this.loadTaperObject(taperStructure, dataRepository);
@@ -236,7 +236,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
             DataRepository dataRepository) throws BlenderFileException {
         Pointer pBezierTriple = (Pointer) nurb.getFieldValue("bezt");
         List<Geometry> result = new ArrayList<Geometry>();
-        if (!pBezierTriple.isNull()) {
+        if (pBezierTriple.isNotNull()) {
             boolean smooth = (((Number) nurb.getFlatFieldValue("flag")).intValue() & 0x01) != 0;
             int resolution = ((Number) nurb.getFieldValue("resolu")).intValue();
             boolean cyclic = (((Number) nurb.getFieldValue("flagu")).intValue() & 0x01) != 0;
@@ -291,7 +291,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
         List<Float>[] knots = new List[2];
         Pointer[] pKnots = new Pointer[]{(Pointer) nurb.getFieldValue("knotsu"), (Pointer) nurb.getFieldValue("knotsv")};
         for (int i = 0; i < knots.length; ++i) {
-            if (!pKnots[i].isNull()) {
+            if (pKnots[i].isNotNull()) {
                 FileBlockHeader fileBlockHeader = dataRepository.getFileBlock(pKnots[i].getOldMemoryAddress());
                 BlenderInputStream blenderInputStream = dataRepository.getInputStream();
                 blenderInputStream.setPosition(fileBlockHeader.getBlockPosition());
@@ -563,7 +563,7 @@ public class CurvesHelper extends AbstractBlenderHelper {
         List<Structure> nurbStructures = ((Structure) taperStructure.getFieldValue("nurb")).evaluateListBase(dataRepository);
         for (Structure nurb : nurbStructures) {
             Pointer pBezierTriple = (Pointer) nurb.getFieldValue("bezt");
-            if (!pBezierTriple.isNull()) {
+            if (pBezierTriple.isNotNull()) {
                 //creating the curve object
                 BezierCurve bezierCurve = new BezierCurve(0, pBezierTriple.fetchData(dataRepository.getInputStream()), 3);
                 List<Vector3f> controlPoints = bezierCurve.getControlPoints();
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MaterialHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MaterialHelper.java
index 8841744ba..ea0d29179 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MaterialHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MaterialHelper.java
@@ -235,7 +235,7 @@ public class MaterialHelper extends AbstractBlenderHelper {
 			DynamicArray<Pointer> mtexs = (DynamicArray<Pointer>) structure.getFieldValue("mtex");
 			for (int i = 0; i < mtexs.getTotalSize(); ++i) {
 				Pointer p = mtexs.get(i);
-				if (!p.isNull()) {
+				if (p.isNotNull()) {
 					List<Structure> mtex = p.fetchData(dataRepository.getInputStream());
 					if (mtex.size() == 1) {
 						Structure textureLink = mtex.get(0);
@@ -544,7 +544,7 @@ public class MaterialHelper extends AbstractBlenderHelper {
 	public Material[] getMaterials(Structure structureWithMaterials, DataRepository dataRepository) throws BlenderFileException {
 		Pointer ppMaterials = (Pointer) structureWithMaterials.getFieldValue("mat");
 		Material[] materials = null;
-		if (!ppMaterials.isNull()) {
+		if (ppMaterials.isNotNull()) {
 			List<Structure> materialStructures = ppMaterials.fetchData(dataRepository.getInputStream());
 			if (materialStructures != null && materialStructures.size() > 0) {
 				MaterialHelper materialHelper = dataRepository.getHelper(MaterialHelper.class);
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
index 59e2461d0..91b781ad4 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/MeshHelper.java
@@ -124,7 +124,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 		List<Vector2f> uvCoordinates = null;
 		List<Structure> mtFaces = null;
 
-		if (!pMTFace.isNull()) {
+		if (pMTFace.isNotNull()) {
 			mtFaces = pMTFace.fetchData(dataRepository.getInputStream());
 			int facesAmount = ((Number) structure.getFieldValue("totface")).intValue();
 			if (mtFaces.size() != facesAmount) {
@@ -169,7 +169,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 			}
 			
 			// attaching image to texture (face can have UV's and image whlie its material may have no texture attached)
-			if (pImage != null && !pImage.isNull() && !materialNumberToTexture.containsKey(materialNumber)) {
+			if (pImage != null && pImage.isNotNull() && !materialNumberToTexture.containsKey(materialNumber)) {
 				Texture texture = textureHelper.getTextureFromImage(pImage.fetchData(dataRepository.getInputStream()).get(0),
 						dataRepository);
 				if (texture != null) {
@@ -436,7 +436,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 		Pointer pMCol = (Pointer) meshStructure.getFieldValue("mcol");
 		List<float[]> verticesColors = null;
 		List<Structure> mCol = null;
-		if (!pMCol.isNull()) {
+		if (pMCol.isNotNull()) {
 			verticesColors = new LinkedList<float[]>();
 			mCol = pMCol.fetchData(dataRepository.getInputStream());
 			for (Structure color : mCol) {
@@ -502,7 +502,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 		Pointer pDvert = (Pointer) meshStructure.getFieldValue("dvert");// dvert = DeformVERTices
 		FloatBuffer weightsFloatData = BufferUtils.createFloatBuffer(vertexListSize * MAXIMUM_WEIGHTS_PER_VERTEX);
 		ByteBuffer indicesData = BufferUtils.createByteBuffer(vertexListSize * MAXIMUM_WEIGHTS_PER_VERTEX);
-		if (!pDvert.isNull()) {// assigning weights and bone indices
+		if (pDvert.isNotNull()) {// assigning weights and bone indices
 			List<Structure> dverts = pDvert.fetchData(dataRepository.getInputStream());// dverts.size() == verticesAmount (one dvert per
 																						// vertex in blender)
 			int vertexIndex = 0;
@@ -511,7 +511,7 @@ public class MeshHelper extends AbstractBlenderHelper {
 																						// (max. 4 in JME)
 				Pointer pDW = (Pointer) dvert.getFieldValue("dw");
 				List<Integer> vertexIndices = vertexReferenceMap.get(Integer.valueOf(vertexIndex));// we fetch the referenced vertices here
-				if (totweight > 0 && !pDW.isNull()) {// pDW should never be null here, but I check it just in case :)
+				if (totweight > 0 && pDW.isNotNull()) {// pDW should never be null here, but I check it just in case :)
 					int weightIndex = 0;
 					List<Structure> dw = pDW.fetchData(dataRepository.getInputStream());
 					for (Structure deformWeight : dw) {
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ModifierHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ModifierHelper.java
index 0bf2ffb55..6fc6994c8 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ModifierHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ModifierHelper.java
@@ -168,18 +168,18 @@ public class ModifierHelper extends AbstractBlenderHelper {
 				}
 				if ((offsettype & 0x04) != 0) {// Object offset
 					Pointer pOffsetObject = (Pointer) modifier.getFieldValue("offset_ob");
-					if (!pOffsetObject.isNull()) {
+					if (pOffsetObject.isNotNull()) {
 						params.put("offsetob", pOffsetObject);
 					}
 				}
 
 				// start cap and end cap
 				Pointer pStartCap = (Pointer) modifier.getFieldValue("start_cap");
-				if (!pStartCap.isNull()) {
+				if (pStartCap.isNotNull()) {
 					params.put("startcap", pStartCap);
 				}
 				Pointer pEndCap = (Pointer) modifier.getFieldValue("end_cap");
-				if (!pEndCap.isNull()) {
+				if (pEndCap.isNotNull()) {
 					params.put("endcap", pEndCap);
 				}
 				loadedModifier = params;
@@ -190,13 +190,13 @@ public class ModifierHelper extends AbstractBlenderHelper {
 				params.put("flag", modifier.getFieldValue("flag"));
 				params.put("tolerance", modifier.getFieldValue("tolerance"));
 				Pointer pMirrorOb = (Pointer) modifier.getFieldValue("mirror_ob");
-				if (!pMirrorOb.isNull()) {
+				if (pMirrorOb.isNotNull()) {
 					params.put("mirrorob", pMirrorOb);
 				}
 				loadedModifier = params;
 			} else if (Modifier.ARMATURE_MODIFIER_DATA.equals(modifier.getType())) {// ****************ARMATURE MODIFIER
 				Pointer pArmatureObject = (Pointer) modifier.getFieldValue("object");
-				if (!pArmatureObject.isNull()) {
+				if (pArmatureObject.isNotNull()) {
 					ObjectHelper objectHelper = dataRepository.getHelper(ObjectHelper.class);
 					Structure armatureObject = (Structure) dataRepository.getLoadedFeature(pArmatureObject.getOldMemoryAddress(), LoadedFeatureDataType.LOADED_STRUCTURE);
 					if (armatureObject == null) {// we check this first not to fetch the structure unnecessary
@@ -237,7 +237,7 @@ public class ModifierHelper extends AbstractBlenderHelper {
 				}
 			} else if (Modifier.PARTICLE_MODIFIER_DATA.equals(modifier.getType())) {// ****************PARTICLES MODIFIER
 				Pointer pParticleSystem = (Pointer) modifier.getFieldValue("psys");
-				if (!pParticleSystem.isNull()) {
+				if (pParticleSystem.isNotNull()) {
 					ParticlesHelper particlesHelper = dataRepository.getHelper(ParticlesHelper.class);
 					Structure particleSystem = pParticleSystem.fetchData(dataRepository.getInputStream()).get(0);
 					loadedModifier = particlesHelper.toParticleEmitter(particleSystem, dataRepository);
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ObjectHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ObjectHelper.java
index 134a48bfd..033686f3f 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ObjectHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ObjectHelper.java
@@ -152,7 +152,7 @@ public class ObjectHelper extends AbstractBlenderHelper {
 
 		Pointer pParent = (Pointer)objectStructure.getFieldValue("parent");
 		Object parent = dataRepository.getLoadedFeature(pParent.getOldMemoryAddress(), LoadedFeatureDataType.LOADED_FEATURE);
-		if(parent == null && !pParent.isNull()) {
+		if(parent == null && pParent.isNotNull()) {
 			Structure parentStructure = pParent.fetchData(dataRepository.getInputStream()).get(0);//TODO: moze byc wiecej rodzicow
 			parent = this.toObject(parentStructure, dataRepository);
 		}
@@ -203,7 +203,7 @@ public class ObjectHelper extends AbstractBlenderHelper {
 				case OBJECT_TYPE_CURVE:
 					LOGGER.log(Level.INFO, "Importing curve/nurb.");
 					Pointer pCurve = (Pointer)objectStructure.getFieldValue("data");
-					if(!pCurve.isNull()) {
+					if(pCurve.isNotNull()) {
 						CurvesHelper curvesHelper = dataRepository.getHelper(CurvesHelper.class);
 						Structure curveData = pCurve.fetchData(dataRepository.getInputStream()).get(0);
 						List<Geometry> curves = curvesHelper.toCurve(curveData, dataRepository);
@@ -217,7 +217,7 @@ public class ObjectHelper extends AbstractBlenderHelper {
 				case OBJECT_TYPE_LAMP:
 					LOGGER.log(Level.INFO, "Importing lamp.");
 					Pointer pLamp = (Pointer)objectStructure.getFieldValue("data");
-					if(!pLamp.isNull()) {
+					if(pLamp.isNotNull()) {
 						LightHelper lightHelper = dataRepository.getHelper(LightHelper.class);
 						List<Structure> lampsArray = pLamp.fetchData(dataRepository.getInputStream());
 						Light light = lightHelper.toLight(lampsArray.get(0), dataRepository);
@@ -239,7 +239,7 @@ public class ObjectHelper extends AbstractBlenderHelper {
 					break;
 				case OBJECT_TYPE_CAMERA:
 					Pointer pCamera = (Pointer)objectStructure.getFieldValue("data");
-					if(!pCamera.isNull()) {
+					if(pCamera.isNotNull()) {
 						CameraHelper cameraHelper = dataRepository.getHelper(CameraHelper.class);
 						List<Structure> camerasArray = pCamera.fetchData(dataRepository.getInputStream());
 						Camera camera = cameraHelper.toCamera(camerasArray.get(0));
@@ -357,7 +357,7 @@ public class ObjectHelper extends AbstractBlenderHelper {
 	 */
 	public Modifier readObjectAnimation(Structure objectStructure, DataRepository dataRepository) throws BlenderFileException {
 		Pointer pIpo = (Pointer)objectStructure.getFieldValue("ipo");
-		if(!pIpo.isNull()) {
+		if(pIpo.isNotNull()) {
 			//check if there is an action name connected with this ipo
 			String objectAnimationName = null;
 			List<FileBlockHeader> actionBlocks = dataRepository.getFileBlocks(Integer.valueOf(FileBlockHeader.BLOCK_AC00));
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ParticlesHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ParticlesHelper.java
index 13d04139e..3fbdc79e2 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ParticlesHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/helpers/v249/ParticlesHelper.java
@@ -96,7 +96,7 @@ public class ParticlesHelper extends AbstractBlenderHelper {
 	public ParticleEmitter toParticleEmitter(Structure particleSystem, DataRepository dataRepository) throws BlenderFileException {
 		ParticleEmitter result = null;
 		Pointer pParticleSettings = (Pointer) particleSystem.getFieldValue("part");
-		if(!pParticleSettings.isNull()) {
+		if(pParticleSettings.isNotNull()) {
 			Structure particleSettings = pParticleSettings.fetchData(dataRepository.getInputStream()).get(0);
 			
 			int totPart = ((Number) particleSettings.getFieldValue("totpart")).intValue();
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/structures/Constraint.java b/engine/src/blender/com/jme3/scene/plugins/blender/structures/Constraint.java
index 6f2c645c3..7467c0aca 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/structures/Constraint.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/structures/Constraint.java
@@ -47,7 +47,7 @@ public class Constraint {
             throw new IllegalArgumentException("Influence function is not defined!");
         }
         Pointer pData = (Pointer) constraintStructure.getFieldValue("data");
-        if (!pData.isNull()) {
+        if (pData.isNotNull()) {
             data = pData.fetchData(dataRepository.getInputStream()).get(0);
         } else {
             throw new BlenderFileException("The constraint has no data specified!");
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/utils/AbstractBlenderHelper.java b/engine/src/blender/com/jme3/scene/plugins/blender/utils/AbstractBlenderHelper.java
index 26df4d388..de4e84155 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/utils/AbstractBlenderHelper.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/utils/AbstractBlenderHelper.java
@@ -118,7 +118,7 @@ public abstract class AbstractBlenderHelper {
 		Structure id = (Structure) structure.getFieldValue("ID");
 		if (id != null) {
 			Pointer pProperties = (Pointer) id.getFieldValue("properties");
-			if (!pProperties.isNull()) {
+			if (pProperties.isNotNull()) {
 				Structure propertiesStructure = pProperties.fetchData(dataRepository.getInputStream()).get(0);
 				properties = new Properties();
 				properties.load(propertiesStructure, dataRepository);
diff --git a/engine/src/blender/com/jme3/scene/plugins/blender/utils/Pointer.java b/engine/src/blender/com/jme3/scene/plugins/blender/utils/Pointer.java
index fd0484348..92d359555 100644
--- a/engine/src/blender/com/jme3/scene/plugins/blender/utils/Pointer.java
+++ b/engine/src/blender/com/jme3/scene/plugins/blender/utils/Pointer.java
@@ -137,6 +137,14 @@ public class Pointer {
     public boolean isNull() {
         return oldMemoryAddress == 0;
     }
+    
+    /**
+     * This method indicates if this is a null-pointer or not.
+     * @return <b>true</b> if the pointer is not null and <b>false</b> otherwise
+     */
+    public boolean isNotNull() {
+        return oldMemoryAddress != 0;
+    }
 
     /**
      * This method returns the old memory address of the structure pointed by the pointer.