hg: openjfx/8u-dev/rt: [SCENEBUILDER] Fixed FindBugs warnings. This also fix DTL-6866: Assertion error when adding ButtonTypes to a DialogPane

[jerome.cambon at oracle.com]

Changeset: 351df31aa086
Author:    Jerome Cambon
Date:      2014-09-10 10:47 +0200
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/351df31aa086

[SCENEBUILDER] Fixed FindBugs warnings. This also fix DTL-6866: Assertion error when adding ButtonTypes to a DialogPane

! apps/scenebuilder/SceneBuilderKit/src/com/oracle/javafx/scenebuilder/kit/editor/panel/inspector/editors/ButtonTypeEditor.java