Check for input path to not be null

Author: gamma

src/com/inet/gradle/setup/unix/deb/DebBuilder.java

@@ -497,6 +497,7 @@ private void createDebianPackage() {
      *             on I/O failures
      */
     private void changeDirectoryPermissionsTo755( File path ) throws IOException {
+        if ( path == null ) { return; }
         DebUtils.setPermissions( path, true );
         for( File file : path.listFiles() ) {
             if( file.isDirectory() ) {
@@ -514,6 +515,7 @@ private void changeDirectoryPermissionsTo755( File path ) throws IOException {
      *             on I/O failures
      */
     private void changeFilePermissionsTo644( File path ) throws IOException {
+        if ( path == null ) { return; }
         for( File file : path.listFiles() ) {
             if( file.isDirectory() ) {
                 changeFilePermissionsTo644( file );

src/com/inet/gradle/setup/unix/rpm/RpmBuilder.java

@@ -194,6 +194,7 @@ private void setupService( Service service ) throws IOException {
      */
     // share
     private void changeDirectoryPermissionsTo755( File path ) throws IOException {
+        if ( path == null ) { return; }
         setPermissions( path, true );
         for( File file : path.listFiles() ) {
             if( file.isDirectory() ) {
@@ -210,6 +211,7 @@ private void changeDirectoryPermissionsTo755( File path ) throws IOException {
      */
     // share
     private void changeFilePermissionsTo644( File path ) throws IOException {
+        if ( path == null ) { return; }
         for( File file : path.listFiles() ) {
             if( file.isDirectory() ) {
                 changeFilePermissionsTo644( file );