GP-5069 PR #7086 update some fsb icons, fix NPE

Ghidra/Features/Base/certification.manifest

@@ -864,9 +864,12 @@ src/main/resources/images/openFolderInView.png||Modified Nuvola Icons - LGPL 2.1
 src/main/resources/images/openFolderLabels.png||Modified Nuvola Icons - LGPL 2.1||||END|
 src/main/resources/images/openFolderNamespaces.dark.png||GHIDRA||||END|
 src/main/resources/images/openFolderNamespaces.png||Modified Nuvola Icons - LGPL 2.1||||END|
+src/main/resources/images/oxygen/16x16/application-javascript.png||Oxygen Icons - LGPL 3.0||||END|
 src/main/resources/images/oxygen/16x16/application-pdf.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
 src/main/resources/images/oxygen/16x16/application-x-bzip.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
+src/main/resources/images/oxygen/16x16/application-x-desktop.png||Oxygen Icons - LGPL 3.0||||END|
 src/main/resources/images/oxygen/16x16/application-x-java-archive.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
+src/main/resources/images/oxygen/16x16/application-x-shellscript.png||Oxygen Icons - LGPL 3.0||||END|
 src/main/resources/images/oxygen/16x16/application-x-subrip.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
 src/main/resources/images/oxygen/16x16/bookmarks.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
 src/main/resources/images/oxygen/16x16/games-config-background.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
@@ -878,6 +881,7 @@ src/main/resources/images/oxygen/16x16/text-x-c++src.png||Oxygen Icons - LGPL 3.
 src/main/resources/images/oxygen/16x16/text-x-chdr.png||Oxygen Icons - LGPL 3.0||||END|
 src/main/resources/images/oxygen/16x16/text-x-csharp.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
 src/main/resources/images/oxygen/16x16/text-x-pascal.png||Oxygen Icons - LGPL 3.0|||Oxygen icon theme (dual license; LGPL or CC-SA-3.0)|END|
+src/main/resources/images/oxygen/16x16/text-x-python.png||Oxygen Icons - LGPL 3.0||||END|
 src/main/resources/images/package.png||Nuvola Icons - LGPL 2.1|||Nuvola icon set|END|
 src/main/resources/images/package_development.png||Nuvola Icons - LGPL 2.1|||nuvola|END|
 src/main/resources/images/package_green.png||FAMFAMFAM Icons - CC 2.5|||famfamfam silk icon set|END|

Ghidra/Features/Base/src/main/java/ghidra/plugins/fsbrowser/FSBRootNode.java

@@ -4,9 +4,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -192,16 +192,18 @@ public class FSBRootNode extends FSBNode {
 	}
 
 	public FSRL getProgramProviderFSRL(FSRL fsrl) {
-		GFileSystem fs = fsRef.getFilesystem();
-		if (fs instanceof GFileSystemProgramProvider programProviderFS) {
-			try {
-				GFile gfile = fs.lookup(fsrl.getPath());
-				if (gfile != null && programProviderFS.canProvideProgram(gfile)) {
-					return fsrl;
+		if (fsRef != null) {
+			GFileSystem fs = fsRef.getFilesystem();
+			if (fs instanceof GFileSystemProgramProvider programProviderFS) {
+				try {
+					GFile gfile = fs.lookup(fsrl.getPath());
+					if (gfile != null && programProviderFS.canProvideProgram(gfile)) {
+						return fsrl;
+					}
+				}
+				catch (IOException e) {
+					// ignore error and fall thru
 				}
-			}
-			catch (IOException e) {
-				// ignore error and fall thru
 			}
 		}
 		return null;