Make GraphicUtils::getURIString() private

* Use tooling.kernel's ResourceUtils::getResourceURI() instead

Issue-Ref: 3939
Issue-Url: https://af3-developer.fortiss.org/issues/3939



Signed-off-by: Simon Barner <barner@fortiss.org>

org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/.ratings

-GraphicUtils.java 46cfc991cd3ef787fec3f95751bc680d68479e26 GREEN
+GraphicUtils.java 9373a2c7a5ebb0d87284d0f6f983348812e5b90d YELLOW
 JavaFXUtils.java db3cf28289109ffec64c8f96c7b2de779a977b3b GREEN

org.fortiss.tooling.common.ui/src/org/fortiss/tooling/common/ui/javafx/util/GraphicUtils.java

@@ -32,7 +32,7 @@ public class GraphicUtils {
 	private static final HashMap<String, Image> imageCache = new HashMap<>();
 
 	/** Returns the plugin-local URI string for the given resource. */
-	public static String getURIString(String pluginId, String localPath) {
+	private static String getURIString(String pluginId, String localPath) {
 		if(!pluginId.endsWith("/") && !localPath.startsWith("/")) {
 			localPath = "/" + localPath;
 		}
@@ -41,6 +41,9 @@ public class GraphicUtils {
 
 	/** Returns the Java FX Image loaded from the plugin's local path. */
 	public static Image getFXImage(String pluginId, String localPath) {
+		if(pluginId == null || localPath == null) {
+			return null;
+		}
 		String uri = getURIString(pluginId, localPath);
 		if(uri == null) {
 			return null;