more corrections in diagnostic messages

jme3-core/src/main/java/com/jme3/audio/AudioNode.java

@@ -299,7 +299,7 @@ public class AudioNode extends Node implements AudioSource {
      */
     public void setAudioData(AudioData audioData, AudioKey audioKey) {
         if (data != null) {
-            throw new IllegalStateException("Cannot change data once its set");
+            throw new IllegalStateException("Cannot change data once it's set");
         }
 
         data = audioData;

jme3-core/src/plugins/java/com/jme3/export/binary/BinaryInputCapsule.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2018 jMonkeyEngine
+ * Copyright (c) 2009-2019 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1073,7 +1073,7 @@ final class BinaryInputCapsule implements InputCapsule {
             else {
                 logger.log(
                         Level.WARNING,
-                        "Your export has been saved with an incorrect encoding for it's String fields which means it might not load correctly " +
+                        "Your export has been saved with an incorrect encoding for its String fields which means it might not load correctly " +
                         "due to encoding issues. You should probably re-export your work. See ISSUE 276 in the jME issue tracker."
                 );
                 // We use ISO8859_1 to be consistent across platforms. We could default to native encoding, but this would lead to inconsistent

jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglAbstractDisplay.java

@@ -203,7 +203,7 @@ public abstract class LwjglAbstractDisplay extends LwjglContext implements Runna
     public void run(){
         if (listener == null) {
             throw new IllegalStateException("SystemListener is not set on context!"
-                                          + "Must set with JmeContext.setSystemListner().");
+                                          + "Must set with JmeContext.setSystemListener().");
         }
 
         loadNatives();

jme3-networking/src/main/java/com/jme3/network/base/KernelAdapter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2018 jMonkeyEngine
+ * Copyright (c) 2009-2019 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -180,7 +180,7 @@ public class KernelAdapter extends Thread
                 if( reliable ) {
                     // If it's a reliable connection then it's slightly more
                     // concerning but this can happen all the time for a UDP endpoint.
-                    log.log( Level.WARNING, "Recieved message from unconnected endpoint:" + p + "  message:" + m );
+                    log.log( Level.WARNING, "Received message from unconnected endpoint:" + p + "  message:" + m );
                 }                    
                 return; 
             }

jme3-networking/src/main/java/com/jme3/network/util/AbstractMessageDelegator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2018 jMonkeyEngine
+ * Copyright (c) 2015-2019 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -111,17 +111,17 @@ public abstract class AbstractMessageDelegator<S extends MessageConnection>
             if( MessageConnection.class.isAssignableFrom(parms[0]) ) {
                 messageIndex++;
             } else {
-                log.finest("First paramter is not a MessageConnection or subclass.");
+                log.finest("First parameter is not a MessageConnection or subclass.");
                 return false;
             }
         }
  
         if( messageType == null && !Message.class.isAssignableFrom(parms[messageIndex]) ) {
-            log.finest("Second paramter is not a Message or subclass.");
+            log.finest("Second parameter is not a Message or subclass.");
             return false;
         }
         if( messageType != null && !parms[messageIndex].isAssignableFrom(messageType) ) {
-            log.log(Level.FINEST, "Second paramter is not a {0}", messageType);
+            log.log(Level.FINEST, "Second parameter is not a {0}", messageType);
             return false;
         }
         return true;            

jme3-plugins/src/gltf/java/com/jme3/scene/plugins/gltf/GltfLoader.java

@@ -606,12 +606,12 @@ public class GltfLoader implements AssetLoader {
         for (int i = 0; i < cameras.size(); i++) {
 
             //Can't access resolution here... actually it's a shame we can't access settings from anywhere.
-            //users will have to call resize ont he camera.
+            //users will have to call resize on the camera.
             Camera cam = new Camera(1, 1);
 
             JsonObject camObj = cameras.get(i).getAsJsonObject();
             String type = getAsString(camObj, "type");
-            assertNotNull(type, "No type defined ofr camera");
+            assertNotNull(type, "No type defined for camera");
             JsonObject camData = camObj.getAsJsonObject(type);
             if (type.equals("perspective")) {
                 float aspectRatio = getAsFloat(camData, "aspectRation", 1f);
@@ -654,7 +654,7 @@ public class GltfLoader implements AssetLoader {
             return null;
         }
         Integer textureIndex = getAsInteger(texture, "index");
-        assertNotNull(textureIndex, "Texture as no index");
+        assertNotNull(textureIndex, "Texture has no index");
         assertNotNull(textures, "There are no textures, yet one is referenced by a material");
 
         JsonObject textureData = textures.get(textureIndex).getAsJsonObject();