diff --git a/jme3-bullet/src/common/java/com/jme3/bullet/collision/PhysicsCollisionGroupListener.java b/jme3-bullet/src/common/java/com/jme3/bullet/collision/PhysicsCollisionGroupListener.java
index e50324116..d5d010d87 100644
--- a/jme3-bullet/src/common/java/com/jme3/bullet/collision/PhysicsCollisionGroupListener.java
+++ b/jme3-bullet/src/common/java/com/jme3/bullet/collision/PhysicsCollisionGroupListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2018 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,7 +40,7 @@ public interface PhysicsCollisionGroupListener {
     /**
      * Called when two physics objects of the registered group are about to collide, <i>called from physics thread</i>.<br>
      * This is only called when the collision will happen based on the collisionGroup and collideWithGroups
-     * settings in the PhysicsCollisionObject. That is the case when <b>one</b> of the partys has the
+     * settings in the PhysicsCollisionObject. That is the case when <b>one</b> of the parties has the
      * collisionGroup of the other in its collideWithGroups set.<br>
      * @param nodeA CollisionObject #1
      * @param nodeB CollisionObject #2
diff --git a/jme3-bullet/src/common/java/com/jme3/bullet/control/ragdoll/RagdollUtils.java b/jme3-bullet/src/common/java/com/jme3/bullet/control/ragdoll/RagdollUtils.java
index d00f7c284..72921f0c7 100644
--- a/jme3-bullet/src/common/java/com/jme3/bullet/control/ragdoll/RagdollUtils.java
+++ b/jme3-bullet/src/common/java/com/jme3/bullet/control/ragdoll/RagdollUtils.java
@@ -123,7 +123,7 @@ public class RagdollUtils {
 
     /**
      * Create a hull collision shape from linked vertices to this bone.
-     * Vertices have to be previoulsly gathered in a map using buildPointMap method
+     * Vertices have to be previously gathered in a map using buildPointMap method
      * 
      * @param pointsMap
      * @param boneIndices
diff --git a/jme3-bullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java b/jme3-bullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
index c9299f2d0..7e268e56b 100644
--- a/jme3-bullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
+++ b/jme3-bullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2018 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -96,7 +96,7 @@ public abstract class PhysicsCollisionObject implements Savable {
      * Sets the collision group number for this physics object. <br>
      * The groups are integer bit masks and some pre-made variables are available in CollisionObject.
      * All physics objects are by default in COLLISION_GROUP_01.<br>
-     * Two object will collide when <b>one</b> of the partys has the
+     * Two object will collide when <b>one</b> of the parties has the
      * collisionGroup of the other in its collideWithGroups set.
      * @param collisionGroup the collisionGroup to set
      */
@@ -109,7 +109,7 @@ public abstract class PhysicsCollisionObject implements Savable {
 
     /**
      * Add a group that this object will collide with.<br>
-     * Two object will collide when <b>one</b> of the partys has the
+     * Two object will collide when <b>one</b> of the parties has the
      * collisionGroup of the other in its collideWithGroups set.<br>
      * @param collisionGroup
      */
diff --git a/jme3-core/src/main/java/com/jme3/renderer/Renderer.java b/jme3-core/src/main/java/com/jme3/renderer/Renderer.java
index 9a4e5bcc2..9f562ea61 100644
--- a/jme3-core/src/main/java/com/jme3/renderer/Renderer.java
+++ b/jme3-core/src/main/java/com/jme3/renderer/Renderer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2018 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -425,7 +425,7 @@ public interface Renderer {
      * Check if the profiling results are available
      *
      * @param taskId the id of the task provided by startProfiling
-     * @return true if the resulst of the task with the given task id are available.
+     * @return true if the results of the task with the given task id are available.
      */
     public boolean isTaskResultAvailable(int taskId);
 
diff --git a/jme3-jbullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java b/jme3-jbullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
index 0416799b8..56769e61c 100644
--- a/jme3-jbullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
+++ b/jme3-jbullet/src/main/java/com/jme3/bullet/collision/PhysicsCollisionObject.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2018 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -93,7 +93,7 @@ public abstract class PhysicsCollisionObject implements Savable {
      * Sets the collision group number for this physics object. <br>
      * The groups are integer bit masks and some pre-made variables are available in CollisionObject.
      * All physics objects are by default in COLLISION_GROUP_01.<br>
-     * Two object will collide when <b>one</b> of the partys has the
+     * Two object will collide when <b>one</b> of the parties has the
      * collisionGroup of the other in its collideWithGroups set.
      * @param collisionGroup the collisionGroup to set
      */
@@ -103,7 +103,7 @@ public abstract class PhysicsCollisionObject implements Savable {
 
     /**
      * Add a group that this object will collide with.<br>
-     * Two object will collide when <b>one</b> of the partys has the
+     * Two object will collide when <b>one</b> of the parties has the
      * collisionGroup of the other in its collideWithGroups set.<br>
      * @param collisionGroup
      */