Perform windowClose methods on the EDT.

Change-Id: If35167b19ad1642e0b38abd4a4a8425588d66821
Reviewed-on: http://gerrit.dmdirc.com/3627
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

src/com/dmdirc/addons/ui_swing/components/frames/ChannelFrame.java

@@ -275,11 +275,16 @@ public final class ChannelFrame extends InputTextFrame implements ActionListener
 
     @Override
     public void windowClosing(final FrameContainer window) {
-        saveSplitPanePosition();
-        topicBar.close();
-        dialogProvider.dispose(channel);
+        UIUtilities.invokeLater(new Runnable() {
 
-        super.windowClosing(window);
+            @Override
+            public void run() {
+                saveSplitPanePosition();
+                topicBar.close();
+                dialogProvider.dispose(channel);
+                ChannelFrame.super.windowClosing(window);
+            }
+        });
     }
 
     @Override

src/com/dmdirc/addons/ui_swing/components/frames/ServerFrame.java

@@ -24,6 +24,7 @@ package com.dmdirc.addons.ui_swing.components.frames;
 
 import com.dmdirc.FrameContainer;
 import com.dmdirc.ServerState;
+import com.dmdirc.addons.ui_swing.UIUtilities;
 import com.dmdirc.addons.ui_swing.components.inputfields.SwingInputField;
 import com.dmdirc.addons.ui_swing.dialogs.serversetting.ServerSettingsDialog;
 import com.dmdirc.addons.ui_swing.dialogs.sslcertificate.SSLCertificateDialog;
@@ -173,8 +174,14 @@ public final class ServerFrame extends InputTextFrame implements
 
     @Override
     public void windowClosing(final FrameContainer window) {
-        dialogProvider.dispose(connection);
-        super.windowClosing(window);
+        UIUtilities.invokeLater(new Runnable() {
+
+            @Override
+            public void run() {
+                dialogProvider.dispose(connection);
+                ServerFrame.super.windowClosing(window);
+            }
+        });
     }
 
     @Override

src/com/dmdirc/addons/ui_swing/components/frames/TextFrame.java

@@ -492,8 +492,14 @@ public abstract class TextFrame extends JPanel implements com.dmdirc.interfaces.
 
     @Override
     public void windowClosing(final FrameContainer window) {
-        setVisible(false);
-        getTextPane().close();
+        UIUtilities.invokeLater(new Runnable() {
+
+            @Override
+            public void run() {
+                setVisible(false);
+                getTextPane().close();
+            }
+        });
     }
 
     /**