diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionNextFrame.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionNextFrame.java
index 39a791332..f5e895da7 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionNextFrame.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionNextFrame.java
@@ -49,6 +49,7 @@ public class ActionNextFrame extends Action {
         if (f < ((DisplayObject) lda.target).getTotalFrames()) {
             ((DisplayObject) lda.target).gotoFrame(f + 1);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionPrevFrame.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionPrevFrame.java
index 73c5d088c..28f606ecd 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionPrevFrame.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionPrevFrame.java
@@ -49,6 +49,7 @@ public class ActionPrevFrame extends Action {
         if (f > 1) {
             ((DisplayObject) lda.target).gotoFrame(f - 1);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionSetTarget.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionSetTarget.java
index a040f962a..6538f50c3 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionSetTarget.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf3/ActionSetTarget.java
@@ -53,6 +53,7 @@ public class ActionSetTarget extends Action {
             lda.target = lda.stage;
             return true;
         }
+
         lda.target = lda.stage.getMember(targetName);
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionAsciiToChar.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionAsciiToChar.java
index 5aa48898b..7c8ecd65e 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionAsciiToChar.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionAsciiToChar.java
@@ -45,7 +45,7 @@ public class ActionAsciiToChar extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCall.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCall.java
index 08c750ae3..4a23c7a67 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCall.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCall.java
@@ -50,7 +50,7 @@ public class ActionCall extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCharToAscii.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCharToAscii.java
index e9a0ccdcd..39f2c2913 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCharToAscii.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCharToAscii.java
@@ -45,7 +45,7 @@ public class ActionCharToAscii extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCloneSprite.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCloneSprite.java
index a95623114..e6cdfcdce 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCloneSprite.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionCloneSprite.java
@@ -50,6 +50,7 @@ public class ActionCloneSprite extends Action {
         if (lda.stack.size() < 3) {
             return false;
         }
+
         int depth = EcmaScript.toInt32(lda.stack.pop());
         String source = EcmaScript.toString(lda.stack.pop());
         String target = EcmaScript.toString(lda.stack.pop());
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionEndDrag.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionEndDrag.java
index 98ecab4e0..536131bfb 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionEndDrag.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionEndDrag.java
@@ -48,6 +48,7 @@ public class ActionEndDrag extends Action {
         if (lda.target instanceof DisplayObject) {
             ((DisplayObject) lda.target).stopDrag();
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetProperty.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetProperty.java
index ea5ee5cae..425b9cc60 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetProperty.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetProperty.java
@@ -52,6 +52,7 @@ public class ActionGetProperty extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         int index = EcmaScript.toInt32(lda.stack.pop());
         String target = EcmaScript.toString(lda.stack.pop());
         Object movieClip = lda.stage.getMember(target);
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetURL2.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetURL2.java
index 5b740ce2d..67e7bc024 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetURL2.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetURL2.java
@@ -116,6 +116,7 @@ public class ActionGetURL2 extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         String target = EcmaScript.toString(lda.stack.pop());
         String urlString = EcmaScript.toString(lda.stack.pop());
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetVariable.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetVariable.java
index 2972db488..4aa95c874 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetVariable.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGetVariable.java
@@ -51,7 +51,7 @@ public class ActionGetVariable extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGotoFrame2.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGotoFrame2.java
index b51eeb26a..a5167ef6b 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGotoFrame2.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionGotoFrame2.java
@@ -109,9 +109,10 @@ public class ActionGotoFrame2 extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() < 1) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
+
         String frame = EcmaScript.toString(lda.stack.pop());
         String target = "/";
         if (frame.contains(":")) {
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionIf.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionIf.java
index e95769584..72aa993c9 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionIf.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionIf.java
@@ -110,7 +110,7 @@ public class ActionIf extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBAsciiToChar.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBAsciiToChar.java
index 8aedd2cb9..cd3f511c1 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBAsciiToChar.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBAsciiToChar.java
@@ -45,7 +45,7 @@ public class ActionMBAsciiToChar extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBCharToAscii.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBCharToAscii.java
index 3c473f7c5..6f8d23679 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBCharToAscii.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBCharToAscii.java
@@ -45,7 +45,7 @@ public class ActionMBCharToAscii extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBStringLength.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBStringLength.java
index 60bda3611..2941b82cc 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBStringLength.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionMBStringLength.java
@@ -45,7 +45,7 @@ public class ActionMBStringLength extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionNot.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionNot.java
index 8d9ed0bdf..126a55cdc 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionNot.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionNot.java
@@ -45,7 +45,7 @@ public class ActionNot extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionPop.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionPop.java
index 51af6d475..8af92f17a 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionPop.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionPop.java
@@ -42,6 +42,7 @@ public class ActionPop extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         lda.stack.pop();
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRandomNumber.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRandomNumber.java
index 1c81e46f4..8057c5359 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRandomNumber.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRandomNumber.java
@@ -45,9 +45,10 @@ public class ActionRandomNumber extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() < 1) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
+
         lda.stack.push(RandomNumberActionItem.getResult(lda.pop()));
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRemoveSprite.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRemoveSprite.java
index 5f4a09ad9..125febd47 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRemoveSprite.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionRemoveSprite.java
@@ -49,6 +49,7 @@ public class ActionRemoveSprite extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         String target = EcmaScript.toString(lda.stack.pop());
         lda.stage.removeMember(target);
         return true;
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetProperty.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetProperty.java
index 318e9a974..9d9dec258 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetProperty.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetProperty.java
@@ -59,6 +59,7 @@ public class ActionSetProperty extends Action {
         if (lda.stack.size() < 3) {
             return false;
         }
+
         Object value = lda.pop();
         int index = (int) (double) lda.popAsNumber();
         String target = lda.popAsString();
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetTarget2.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetTarget2.java
index 01fe53a7d..56f3b8716 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetTarget2.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionSetTarget2.java
@@ -48,6 +48,7 @@ public class ActionSetTarget2 extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         String target = lda.popAsString();
         lda.target = lda.stage.getMember(target);
         return true;
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStartDrag.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStartDrag.java
index 5f696f75e..7511cbece 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStartDrag.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStartDrag.java
@@ -50,6 +50,7 @@ public class ActionStartDrag extends Action {
         if (lda.target instanceof DisplayObject) {
             ((DisplayObject) lda.target).startDrag();
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStringLength.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStringLength.java
index 39d4c9e36..dbaec7c7e 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStringLength.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionStringLength.java
@@ -45,7 +45,7 @@ public class ActionStringLength extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionToInteger.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionToInteger.java
index 9bab2af69..59a3b453b 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionToInteger.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionToInteger.java
@@ -45,7 +45,7 @@ public class ActionToInteger extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionTrace.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionTrace.java
index c254e4958..8eea965e6 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionTrace.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf4/ActionTrace.java
@@ -48,6 +48,7 @@ public class ActionTrace extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         lda.stage.trace(lda.pop());
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallFunction.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallFunction.java
index e0a2313d7..e99348720 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallFunction.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallFunction.java
@@ -49,19 +49,20 @@ public class ActionCallFunction extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-
         String functionName = lda.popAsString();
         int numArgs = (int) (double) lda.popAsNumber();
         List<Object> args = new ArrayList<>();
         for (int i = 0; i < numArgs; i++) {
             args.add(lda.pop());
         }
+
         for (ActionScriptFunction f : lda.functions) {
             if (functionName.equals(f.getFunctionName())) {
                 lda.stack.push(lda.stage.callFunction(f.getFunctionOffset(), f.getFunctionLength(), args, f.getFuncRegNames(), Undefined.INSTANCE /*?*/));
                 return true;
             }
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallMethod.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallMethod.java
index edef5ce7d..70f317b77 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallMethod.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionCallMethod.java
@@ -51,6 +51,7 @@ public class ActionCallMethod extends Action {
         if (lda.stack.size() < 3) {
             return false;
         }
+
         String methodName = lda.popAsString();
         Object obj0 = lda.pop();
         if (!(obj0 instanceof ActionScriptObject)) {
@@ -62,6 +63,7 @@ public class ActionCallMethod extends Action {
         if (lda.stack.size() < numArgs) {
             return false;
         }
+
         List<Object> args = new ArrayList<>();
         for (int i = 0; i < numArgs; i++) {
             args.add(lda.pop());
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDecrement.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDecrement.java
index a4f990cb7..07b69e527 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDecrement.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDecrement.java
@@ -45,7 +45,7 @@ public class ActionDecrement extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDelete2.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDelete2.java
index c1b1faa1e..2b3fb3b17 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDelete2.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionDelete2.java
@@ -47,11 +47,16 @@ public class ActionDelete2 extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
+        if (lda.stack.isEmpty()) {
+            return false;
+        }
+
         String memberName = lda.popAsString();
         Object o = lda.target; //should be current scope
         if (o instanceof ActionScriptObject) {
             ((ActionScriptObject) o).setMember(memberName, Undefined.INSTANCE);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionEnumerate.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionEnumerate.java
index 1185ff5a8..b1b53d846 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionEnumerate.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionEnumerate.java
@@ -50,6 +50,7 @@ public class ActionEnumerate extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         String objectName = lda.popAsString();
         lda.stack.push(Null.INSTANCE);
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionGetMember.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionGetMember.java
index a58124c21..8afc8470e 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionGetMember.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionGetMember.java
@@ -50,6 +50,7 @@ public class ActionGetMember extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         String membername = lda.popAsString();
         Object obj = lda.pop();
         if (obj instanceof ActionScriptObject) {
@@ -57,6 +58,7 @@ public class ActionGetMember extends Action {
         } else {
             lda.stack.push(Undefined.INSTANCE);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionIncrement.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionIncrement.java
index 276f238d4..dff7a7f18 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionIncrement.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionIncrement.java
@@ -45,7 +45,7 @@ public class ActionIncrement extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitArray.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitArray.java
index 909f22b08..33bf882df 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitArray.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitArray.java
@@ -45,14 +45,17 @@ public class ActionInitArray extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         int num = (int) (double) lda.popAsNumber();
         if (lda.stack.size() < num) {
             return false;
         }
+
         ActionScriptArray arr = new ActionScriptArray();
         for (int i = 0; i < num; i++) {
             arr.setValueAtIndex(i, lda.stack.pop());
         }
+
         lda.stack.push(arr);
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitObject.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitObject.java
index 268916cca..c991ac8ca 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitObject.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionInitObject.java
@@ -50,16 +50,19 @@ public class ActionInitObject extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         int num = (int) (double) (Double) lda.popAsNumber();
         if (lda.stack.size() < 2 * num) {
             return false;
         }
+
         ActionScriptObject obj = new ActionScriptObject();
         for (int i = 0; i < num; i++) {
             Object val = lda.pop();
             String name = lda.popAsString();
             obj.setMember(name, val);
         }
+
         lda.stack.push(obj);
         return true;
     }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewMethod.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewMethod.java
index bac787fae..2859a77ff 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewMethod.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewMethod.java
@@ -51,16 +51,19 @@ public class ActionNewMethod extends Action {
         if (lda.stack.size() < 3) {
             return false;
         }
+
         String methodName = lda.popAsString();
         ActionScriptObject obj = (ActionScriptObject) lda.pop();
         int numArgs = (int) (double) lda.popAsNumber();
         if (lda.stack.size() < numArgs) {
             return false;
         }
+
         List<Object> args = new ArrayList<>();
         for (int i = 0; i < numArgs; i++) {
             args.add(lda.pop());
         }
+
         ActionScriptObject nobj = new ActionScriptObject();
         ActionScriptFunction f = (ActionScriptFunction) obj.getMember(methodName);
         lda.stage.callFunction(f.getFunctionOffset(), f.getFunctionLength(), args, f.getFuncRegNames(), nobj);
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewObject.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewObject.java
index 0fd5b777d..3663e6c3a 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewObject.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionNewObject.java
@@ -18,7 +18,6 @@ package com.jpexs.decompiler.flash.action.swf5;
 
 import com.jpexs.decompiler.flash.BaseLocalData;
 import com.jpexs.decompiler.flash.action.Action;
-import com.jpexs.decompiler.flash.action.ActionScriptFunction;
 import com.jpexs.decompiler.flash.action.ActionScriptObject;
 import com.jpexs.decompiler.flash.action.LocalDataArea;
 import com.jpexs.decompiler.flash.action.model.NewObjectActionItem;
@@ -51,19 +50,22 @@ public class ActionNewObject extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         String objectName = lda.popAsString();
         int numArgs = (int) (double) (Double) lda.popAsNumber();
         if (lda.stack.size() < numArgs) {
             return false;
         }
+
         List<Object> args = new ArrayList<>();
         for (int i = 0; i < numArgs; i++) {
             args.add(lda.stack.pop());
         }
+
         ActionScriptObject obj = new ActionScriptObject();
-        //TODO:check type        
+        //TODO:check type
         /*ActionScriptFunction constructor = (ActionScriptFunction) lda.stage.getMember(objectName);
-        lda.stage.callFunction(constructor.getFunctionOffset(), constructor.getFunctionLength(), args, constructor.getFuncRegNames(), obj);
+         lda.stage.callFunction(constructor.getFunctionOffset(), constructor.getFunctionLength(), args, constructor.getFuncRegNames(), obj);
          */
         lda.stack.push(obj);
         return true;
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionPushDuplicate.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionPushDuplicate.java
index a966786b6..ba02a1ee4 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionPushDuplicate.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionPushDuplicate.java
@@ -46,7 +46,7 @@ public class ActionPushDuplicate extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionReturn.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionReturn.java
index 31d7e70ee..ce9aeb0a3 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionReturn.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionReturn.java
@@ -45,7 +45,7 @@ public class ActionReturn extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             //lda.returnValue = Undefined.INSTANCE;
             return false;
         } else {
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionSetMember.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionSetMember.java
index 65b6cbaf7..011c8cb05 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionSetMember.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionSetMember.java
@@ -58,12 +58,14 @@ public class ActionSetMember extends Action {
         if (lda.stack.size() < 3) {
             return false;
         }
+
         Object value = lda.pop();
         String memberName = lda.popAsString();
         Object obj = lda.pop();
         if (obj instanceof ActionScriptObject) {
             ((ActionScriptObject) obj).setMember(memberName, value);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTargetPath.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTargetPath.java
index 077e7f7cd..0bc2fb707 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTargetPath.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTargetPath.java
@@ -49,6 +49,7 @@ public class ActionTargetPath extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         Object obj = lda.pop();
 
         String path = lda.stage.getMemberPath(obj);
@@ -57,6 +58,7 @@ public class ActionTargetPath extends Action {
         } else {
             lda.stack.push(path);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToNumber.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToNumber.java
index 946598ae8..b794b5d69 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToNumber.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToNumber.java
@@ -45,7 +45,7 @@ public class ActionToNumber extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToString.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToString.java
index ced47875e..969e99c9c 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToString.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionToString.java
@@ -45,7 +45,7 @@ public class ActionToString extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTypeOf.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTypeOf.java
index 406087adc..bdfd1724d 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTypeOf.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionTypeOf.java
@@ -45,7 +45,7 @@ public class ActionTypeOf extends Action {
 
     @Override
     public boolean execute(LocalDataArea lda) {
-        if (lda.stack.size() == 0) {
+        if (lda.stack.isEmpty()) {
             return false;
         }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionWith.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionWith.java
index 85976d82a..90034cdc3 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionWith.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf5/ActionWith.java
@@ -59,6 +59,7 @@ public class ActionWith extends Action implements GraphSourceItemContainer {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         ActionScriptObject obj = (ActionScriptObject) lda.pop();
         ActionScriptWith w = new ActionScriptWith(obj, fileOffset, codeSize);
         lda.withs.add(w);
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionEnumerate2.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionEnumerate2.java
index 667f1ff36..060d1678d 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionEnumerate2.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionEnumerate2.java
@@ -61,6 +61,7 @@ public class ActionEnumerate2 extends Action {
         if (lda.stack.isEmpty()) {
             return false;
         }
+
         Object o = lda.pop();
         lda.stack.push(Null.INSTANCE);
 
@@ -70,6 +71,7 @@ public class ActionEnumerate2 extends Action {
                 lda.stack.push(m);
             }
         }
+
         return true;
     }
 }
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionInstanceOf.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionInstanceOf.java
index 1d62cda1e..eb1bd9112 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionInstanceOf.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf6/ActionInstanceOf.java
@@ -72,6 +72,7 @@ public class ActionInstanceOf extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         Object type = lda.stack.pop();
         Object obj = lda.stack.pop();
         if (getInstanceOfResult(obj, type)) {
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionCastOp.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionCastOp.java
index 4227b2133..79140eb61 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionCastOp.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionCastOp.java
@@ -51,6 +51,7 @@ public class ActionCastOp extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         ActionScriptObject obj = (ActionScriptObject) lda.pop();
         ActionScriptObject constr = (ActionScriptObject) lda.pop();
         if (ActionInstanceOf.getInstanceOfResult(obj, constr)) {
@@ -58,6 +59,7 @@ public class ActionCastOp extends Action {
         } else {
             lda.stack.push(Null.INSTANCE);
         }
+
         return true;
     }
 
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionExtends.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionExtends.java
index 78ddb57ff..ecdc5aacb 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionExtends.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionExtends.java
@@ -49,6 +49,7 @@ public class ActionExtends extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         //TODO: check if its really ActionScriptObject ?
         ActionScriptObject superClass = (ActionScriptObject) lda.pop();
         ActionScriptObject subClass = (ActionScriptObject) lda.pop();
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionImplementsOp.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionImplementsOp.java
index c23a56fee..ffa907710 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionImplementsOp.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/swf7/ActionImplementsOp.java
@@ -50,6 +50,7 @@ public class ActionImplementsOp extends Action {
         if (lda.stack.size() < 2) {
             return false;
         }
+
         //TODO: check if its really scriptobject?
         ActionScriptObject obj = (ActionScriptObject) lda.pop();
         int num = (int) (double) lda.popAsNumber();
@@ -57,9 +58,11 @@ public class ActionImplementsOp extends Action {
         if (lda.stack.size() < num) {
             return false;
         }
+
         for (int i = 0; i < num; i++) {
             interfaces.add(lda.stack.pop());
         }
+
         obj.setImplementsObjs(interfaces);
         return true;
     }