swf disposing fixes

libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/SWF.java

@@ -303,6 +303,35 @@ public final class SWF implements SWFContainerItem, Timelined {
         characters = null;
     }
 
+    public void clearTagSwfs() {
+        resetTimelines(this);
+        updateCharacters();
+
+        for (Tag tag : tags) {
+            if (tag instanceof DefineSpriteTag) {
+                DefineSpriteTag spriteTag = (DefineSpriteTag) tag;
+                for (Tag tag1 : spriteTag.subTags) {
+                    tag1.setSwf(null);
+                }
+
+                spriteTag.subTags.clear();
+            }
+
+            tag.setSwf(null);
+        }
+
+        tags.clear();
+        abcList.clear();
+
+        as2Cache.clear();
+        as3Cache.clear();
+
+        timeline = null;
+        dumpInfo = null;
+        jtt = null;
+        binaryData = null;
+    }
+
     public Map<Integer, CharacterTag> getCharacters() {
         if (characters == null) {
             synchronized (this) {

libsrc/ffdec_lib/src/com/jpexs/helpers/Cache.java

@@ -19,6 +19,7 @@ package com.jpexs.helpers;
 import com.jpexs.decompiler.flash.helpers.Freed;
 import java.io.File;
 import java.io.IOException;
+import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -35,7 +36,7 @@ public class Cache<K, V> implements Freed {
 
     private Map<K, V> cache;
 
-    private static final List<Cache> instances = new ArrayList<>();
+    private static final List<WeakReference<Cache>> instances = new ArrayList<>();
 
     public static final int STORAGE_FILES = 1;
 
@@ -52,9 +53,12 @@ public class Cache<K, V> implements Freed {
 
             @Override
             public void run() {
-                for (Cache c : instances) {
-                    c.clear();
-                    c.free();
+                for (WeakReference<Cache> cw : instances) {
+                    Cache c = cw.get();
+                    if (c != null) {
+                        c.clear();
+                        c.free();
+                    }
                 }
             }
 
@@ -63,16 +67,19 @@ public class Cache<K, V> implements Freed {
 
     public static <K, V> Cache<K, V> getInstance(boolean weak, boolean memoryOnly, String name) {
         Cache<K, V> instance = new Cache<>(weak, memoryOnly, name);
-        instances.add(instance);
+        instances.add(new WeakReference<Cache>(instance));
         return instance;
     }
 
     private static int storageType = STORAGE_FILES;
 
     public static void clearAll() {
-        for (Cache c : instances) {
-            c.clear();
-            c.initCache();
+        for (WeakReference<Cache> cw : instances) {
+            Cache c = cw.get();
+            if (c != null) {
+                c.clear();
+                c.initCache();
+            }
         }
     }
 

src/com/jpexs/decompiler/flash/gui/ImagePanel.java

@@ -855,6 +855,7 @@ public final class ImagePanel extends JPanel implements ActionListener, MediaDis
 
     public synchronized void clearAll() {
         stop();
+        clearImagePanel();
         timelined = null;
         swf = null;
     }

src/com/jpexs/decompiler/flash/gui/MainPanel.java

@@ -725,6 +725,11 @@ public final class MainPanel extends JPanel implements ActionListener, TreeSelec
             }
         }
 
+        /*for (SWFList swfList : swfs) {
+         for (SWF swf : swfList) {
+         swf.clearTagSwfs();
+         }
+         }*/
         swfs.clear();
         oldItem = null;
         previewPanel.clear();
@@ -2442,6 +2447,7 @@ public final class MainPanel extends JPanel implements ActionListener, TreeSelec
 
                             @Override
                             public void run() {
+                                setSourceWorker = null;
                                 try {
                                     get();
                                 } catch (CancellationException ex) {

src/com/jpexs/decompiler/flash/gui/abc/ABCPanel.java

@@ -286,6 +286,7 @@ public class ABCPanel extends JPanel implements ItemListener, ActionListener, Se
         this.abc = null;
         constantTable.setModel(new DefaultTableModel());
         navigator.clearAbc();
+        decompiledTextArea.clearScript();
     }
 
     public void initSplits() {

src/com/jpexs/decompiler/flash/gui/abc/DecompiledEditorPane.java

@@ -639,6 +639,10 @@ public class DecompiledEditorPane extends LineMarkedEditorPane implements CaretL
         this.abcPanel = abcPanel;
     }
 
+    public void clearScript() {
+        script = null;
+    }
+
     public void setScript(ScriptPack scriptLeaf) {
         abcPanel.scriptNameLabel.setText(scriptLeaf.getClassPath().toString());
         int scriptIndex = scriptLeaf.scriptIndex;