ambiguous reference to FileSystems.newFileSystem() fixed (JDK 13)

Author: thurka

visualvm/gotosource/src/org/graalvm/visualvm/gotosource/SourcesRoot.java

@@ -104,7 +104,7 @@ private static SourcePathHandle getHandleInDirectory(Path directory, String sour
     }
 
     private static SourcePathHandle getHandleInArchive(Path archive, String sourcePath, String[] subPaths, Charset encoding) throws Throwable {
-        FileSystem archiveFileSystem = FileSystems.newFileSystem(archive, null);
+        FileSystem archiveFileSystem = FileSystems.newFileSystem(archive, (ClassLoader)null);
         if (subPaths == null) {
             Path sourceFile = archiveFileSystem.getPath(sourcePath);
             return isFile(sourceFile) ? new SourcePathHandle(sourceFile, true, encoding) : null;

visualvm/gotosource/src/org/graalvm/visualvm/gotosource/options/SourcesOptionsPanel.java

@@ -787,7 +787,7 @@ private static List<String> getFolderSubDirs(File root) {
         }
 
         private static List<String> getArchiveSubDirs(File root) {
-            try (FileSystem archiveFileSystem = FileSystems.newFileSystem(root.toPath(), null)) {
+            try (FileSystem archiveFileSystem = FileSystems.newFileSystem(root.toPath(), (ClassLoader)null)) {
                 Path archive = archiveFileSystem.getRootDirectories().iterator().next();
                 List<Path> subfolders = Files.walk(archive, 1).filter(Files::isDirectory).collect(Collectors.toList());