incremented the version

Author: JavaSaBr

build-native.xml

@@ -127,8 +127,7 @@
                         name="jME3-SpaceShift-Editor"
                         mainClass="com.ss.editor.JFXApplication"
                         toolkit="fx"
-                        version="0.7.7"
-                />
+                        version="0.7.8" />
 
         <mkdir dir="build/classes/META-INF"/>
 
@@ -140,7 +139,7 @@
             <manifest>
                 <attribute name="Implementation-Vendor" value="spaceshift.ru"/>
                 <attribute name="Implementation-Title" value="jME3 SpaceShift Editor"/>
-                <attribute name="Implementation-Version" value="0.7.7"/>
+                <attribute name="Implementation-Version" value="0.7.8"/>
             </manifest>
         </fx:jar>
 
@@ -167,7 +166,7 @@
 
             <preferences shortcut="true" menu="true" install="false"/>
 
-            <info category="Tool;Tools" copyright="spaceshift.ru" description="Editor for jMonkeyEngine 3 by SpaceShift Team"
+            <info category="graphics" copyright="spaceshift.ru" description="Editor for jMonkeyEngine 3 by SpaceShift Team"
                   email="[email protected]" license="Freeware" title="jME3 SpaceShift Editor" vendor="spaceshift.ru"/>
 
             <application refId="fxApplication"/>

build/package/linux/control

@@ -1,6 +1,6 @@
 Package: jme3-spaceshift-editor
-Version: 0.7.7
-Section: tool
+Version: 0.7.8
+Section: graphics
 Maintainer: spaceshift.ru <[email protected]>
 Priority: optional
 Architecture: amd64

src/com/ss/editor/ui/component/asset/tree/ResourceTree.java

@@ -164,6 +164,7 @@ public ResourceTree(final Consumer<ResourceElement> openFunction, final boolean
      * Handle changed count of expanded elements.
      */
     private void processChangedExpands(final Number newValue) {
+        if (expandHandler == null) return;
         expandHandler.accept(newValue.intValue(), this);
     }