diff --git a/jme3-bullet-native-android/build.gradle b/jme3-bullet-native-android/build.gradle
index 4d5df83da..499330a9e 100644
--- a/jme3-bullet-native-android/build.gradle
+++ b/jme3-bullet-native-android/build.gradle
@@ -50,6 +50,7 @@ task unzipBullet(type: Copy) {
     from zipTree(zipFile)
     into outputDir
 }
+
 unzipBullet.dependsOn {
     def zipFile = file(localZipFile)
 //    println "zipFile path: " + zipFile.absolutePath
@@ -70,6 +71,7 @@ task copyBullet(type: Copy) {
     from sourceDir
     into outputDir
 }
+
 copyBullet.dependsOn {
     def bulletUnzipDir = file(localZipFolder)
 //    println "bulletUnzipDir: " + bulletUnzipDir.absolutePath
@@ -81,7 +83,7 @@ copyBullet.dependsOn {
 }
 
 // Copy jME cpp native files to jni directory
-task copyJmeCpp(type: Copy, dependsOn:copyBullet) {
+task copyJmeCpp(type: Copy) {
     def sourceDir = new File(jmeCppPath)
     def outputDir = new File(jniPath)
 //    println "copyJmeCpp sourceDir = " + sourceDir
@@ -92,7 +94,7 @@ task copyJmeCpp(type: Copy, dependsOn:copyBullet) {
 }
 
 // Copy jME android native files to jni directory
-task copyJmeAndroid(type: Copy, dependsOn:copyJmeCpp) {
+task copyJmeAndroid(type: Copy) {
     def sourceDir = new File(jmeAndroidPath)
     def outputDir = new File(jniPath)
 //    println "copyJmeAndroid sourceDir = " + sourceDir
@@ -102,62 +104,7 @@ task copyJmeAndroid(type: Copy, dependsOn:copyJmeCpp) {
     into outputDir
 }
 
-task generateNativeHeaders(dependsOn: copyJmeAndroid) {
-    doLast {
-        String destDirPath = jniPath
-        String classes = " \
-                com.jme3.bullet.PhysicsSpace, \
-                \
-                com.jme3.bullet.collision.PhysicsCollisionEvent, \
-                com.jme3.bullet.collision.PhysicsCollisionObject,\
-                com.jme3.bullet.objects.PhysicsCharacter, \
-                com.jme3.bullet.objects.PhysicsGhostObject, \
-                com.jme3.bullet.objects.PhysicsRigidBody, \
-                com.jme3.bullet.objects.PhysicsVehicle, \
-                com.jme3.bullet.objects.VehicleWheel, \
-                com.jme3.bullet.objects.infos.RigidBodyMotionState, \
-                \
-                com.jme3.bullet.collision.shapes.CollisionShape, \
-                com.jme3.bullet.collision.shapes.BoxCollisionShape, \
-                com.jme3.bullet.collision.shapes.CapsuleCollisionShape, \
-                com.jme3.bullet.collision.shapes.CompoundCollisionShape, \
-                com.jme3.bullet.collision.shapes.ConeCollisionShape, \
-                com.jme3.bullet.collision.shapes.CylinderCollisionShape, \
-                com.jme3.bullet.collision.shapes.GImpactCollisionShape, \
-                com.jme3.bullet.collision.shapes.HeightfieldCollisionShape, \
-                com.jme3.bullet.collision.shapes.HullCollisionShape, \
-                com.jme3.bullet.collision.shapes.MeshCollisionShape, \
-                com.jme3.bullet.collision.shapes.PlaneCollisionShape, \
-                com.jme3.bullet.collision.shapes.SimplexCollisionShape, \
-                com.jme3.bullet.collision.shapes.SphereCollisionShape, \
-                \
-                com.jme3.bullet.joints.PhysicsJoint, \
-                com.jme3.bullet.joints.ConeJoint, \
-                com.jme3.bullet.joints.HingeJoint, \
-                com.jme3.bullet.joints.Point2PointJoint, \
-                com.jme3.bullet.joints.SixDofJoint, \
-                com.jme3.bullet.joints.SixDofSpringJoint, \
-                com.jme3.bullet.joints.SliderJoint, \
-                com.jme3.bullet.joints.motors.RotationalLimitMotor, \
-                com.jme3.bullet.joints.motors.TranslationalLimitMotor, \
-                \
-                com.jme3.bullet.util.NativeMeshUtil, \
-                com.jme3.bullet.util.DebugShapeFactory"
-
-        String projectClassPath = configurations.runtime.asFileTree.matching {
-            exclude ".gradle"
-        }.asPath
-
-        exec {
-            executable org.gradle.internal.jvm.Jvm.current().getExecutable('javah')
-            args '-d', destDirPath
-            args '-classpath', projectClassPath
-            args classes.split(",").collect { it.trim() }
-        }
-    }
-}
-
-task buildBulletNativeLib(type: Exec, dependsOn: generateNativeHeaders) {
+task buildBulletNativeLib(type: Exec, dependsOn: [copyJmeAndroid, copyJmeCpp, copyBullet]) {
 //    args 'TARGET_PLATFORM=android-9'
 //    println "buildBulletNativeLib ndkWorkingPath: " + ndkWorkingPath
 //    println "buildBulletNativeLib rootProject.ndkCommandPath: " + rootProject.ndkCommandPath
diff --git a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_PhysicsSpace.h b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_PhysicsSpace.h
index 0380c17b0..b7b932df9 100644
--- a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_PhysicsSpace.h
+++ b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_PhysicsSpace.h
@@ -144,11 +144,27 @@ JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_setGravity
 /*
  * Class:     com_jme3_bullet_PhysicsSpace
  * Method:    rayTest_native
- * Signature: (Lcom/jme3/math/Vector3f;Lcom/jme3/math/Vector3f;JLjava/util/List;)V
+ * Signature: (Lcom/jme3/math/Vector3f;Lcom/jme3/math/Vector3f;JLjava/util/List;I)V
  */
 JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_rayTest_1native
   (JNIEnv *, jobject, jobject, jobject, jlong, jobject, jint);
 
+/*
+ * Class:     com_jme3_bullet_PhysicsSpace
+ * Method:    sweepTest_native
+ * Signature: (JLcom/jme3/math/Transform;Lcom/jme3/math/Transform;JLjava/util/List;F)V
+ */
+JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_sweepTest_1native
+  (JNIEnv *, jobject, jlong, jobject, jobject, jlong, jobject, jfloat);
+
+/*
+ * Class:     com_jme3_bullet_PhysicsSpace
+ * Method:    setSolverNumIterations
+ * Signature: (JI)V
+ */
+JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_setSolverNumIterations
+  (JNIEnv *, jobject, jlong, jint);
+
 /*
  * Class:     com_jme3_bullet_PhysicsSpace
  * Method:    initNativePhysics
@@ -165,23 +181,6 @@ JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_initNativePhysics
 JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_finalizeNative
   (JNIEnv *, jobject, jlong);
 
-
-/*
-* Class:     com_jme3_bullet_PhysicsSpace
-* Method : sweepTest_native
-* Signature: (J;L;Lcom/jme3/math/Transform;Lcom/jme3/math/Transform;L;JLjava/util/List;F)V
-*/
-JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_sweepTest_1native
-(JNIEnv *, jobject, jlong, jobject, jobject, jlong, jobject, jfloat);
-
-/*
- * Class:     com_jme3_bullet_PhysicsSpace
- * Method:    setSolverNumIterations
- * Signature: (JI)V
- */
-JNIEXPORT void JNICALL Java_com_jme3_bullet_PhysicsSpace_setSolverNumIterations
-(JNIEnv *, jobject, jlong, jint);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
index 67ba9e609..4cfb85b37 100644
--- a/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
+++ b/jme3-bullet-native/src/native/cpp/com_jme3_bullet_objects_PhysicsRigidBody.h
@@ -401,7 +401,6 @@ JNIEXPORT jfloat JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_getAngula
 JNIEXPORT void JNICALL Java_com_jme3_bullet_objects_PhysicsRigidBody_getAngularFactor
   (JNIEnv *, jobject, jlong, jobject);
 
-
 /*
  * Class:     com_jme3_bullet_objects_PhysicsRigidBody
  * Method:    setAngularFactor
diff --git a/jme3-bullet/build.gradle b/jme3-bullet/build.gradle
index bcb1d50cc..075d30163 100644
--- a/jme3-bullet/build.gradle
+++ b/jme3-bullet/build.gradle
@@ -15,3 +15,54 @@ dependencies {
     compile project(':jme3-core')
     compile project(':jme3-terrain')
 }
+
+task generateNativeHeaders(type: Exec, dependsOn: classes) {
+    def classes = " \
+        com.jme3.bullet.PhysicsSpace, \
+        \
+        com.jme3.bullet.collision.PhysicsCollisionEvent, \
+        com.jme3.bullet.collision.PhysicsCollisionObject,\
+        com.jme3.bullet.objects.PhysicsCharacter, \
+        com.jme3.bullet.objects.PhysicsGhostObject, \
+        com.jme3.bullet.objects.PhysicsRigidBody, \
+        com.jme3.bullet.objects.PhysicsVehicle, \
+        com.jme3.bullet.objects.VehicleWheel, \
+        com.jme3.bullet.objects.infos.RigidBodyMotionState, \
+        \
+        com.jme3.bullet.collision.shapes.CollisionShape, \
+        com.jme3.bullet.collision.shapes.BoxCollisionShape, \
+        com.jme3.bullet.collision.shapes.CapsuleCollisionShape, \
+        com.jme3.bullet.collision.shapes.CompoundCollisionShape, \
+        com.jme3.bullet.collision.shapes.ConeCollisionShape, \
+        com.jme3.bullet.collision.shapes.CylinderCollisionShape, \
+        com.jme3.bullet.collision.shapes.GImpactCollisionShape, \
+        com.jme3.bullet.collision.shapes.HeightfieldCollisionShape, \
+        com.jme3.bullet.collision.shapes.HullCollisionShape, \
+        com.jme3.bullet.collision.shapes.MeshCollisionShape, \
+        com.jme3.bullet.collision.shapes.PlaneCollisionShape, \
+        com.jme3.bullet.collision.shapes.SimplexCollisionShape, \
+        com.jme3.bullet.collision.shapes.SphereCollisionShape, \
+        \
+        com.jme3.bullet.joints.PhysicsJoint, \
+        com.jme3.bullet.joints.ConeJoint, \
+        com.jme3.bullet.joints.HingeJoint, \
+        com.jme3.bullet.joints.Point2PointJoint, \
+        com.jme3.bullet.joints.SixDofJoint, \
+        com.jme3.bullet.joints.SixDofSpringJoint, \
+        com.jme3.bullet.joints.SliderJoint, \
+        com.jme3.bullet.joints.motors.RotationalLimitMotor, \
+        com.jme3.bullet.joints.motors.TranslationalLimitMotor, \
+        \
+        com.jme3.bullet.util.NativeMeshUtil, \
+        com.jme3.bullet.util.DebugShapeFactory"
+
+    def classpath = sourceSets.main.runtimeClasspath.asPath
+    def nativeIncludes = new File(project(":jme3-bullet-native").projectDir, "src/native/cpp")
+
+    executable org.gradle.internal.jvm.Jvm.current().getExecutable('javah')
+    args "-d", nativeIncludes
+    args "-classpath", classpath
+    args classes.split(",").collect { it.trim() }
+}
+
+assemble.dependsOn(generateNativeHeaders)
\ No newline at end of file