Prevent useless logging when FS is not expected class

Author: mickaelistria

org.eclipse.jdt.core.javac/src/org/eclipse/jdt/internal/javac/ZipFileSystemProviderWithCache.java

@@ -117,18 +117,20 @@ public FileSystem newFileSystem(Path path, Map<String,?> env) throws IOException
 	}
 
 	static void makeFileSystemUninterruptible(FileSystem res) {
-		try {
-			// workaround to make the underlying work of the ZipFileSystem
-			// resistant to thread abortion. Without it, the zips become
-			// useless when a consumer thread aborts
-			var zipFileSystemClass = res.getClass();
-			var chField = zipFileSystemClass.getDeclaredField("ch");
-			chField.setAccessible(true);
-			if (chField.get(res) instanceof FileChannelImpl fileChannel) {
-				fileChannel.setUninterruptible();
+		if (res.getClass().getName().contains("ZipFileSystem")) {
+			try {
+				// workaround to make the underlying work of the ZipFileSystem
+				// resistant to thread abortion. Without it, the zips become
+				// useless when a consumer thread aborts
+				var zipFileSystemClass = res.getClass();
+				var chField = zipFileSystemClass.getDeclaredField("ch");
+				chField.setAccessible(true);
+				if (chField.get(res) instanceof FileChannelImpl fileChannel) {
+					fileChannel.setUninterruptible();
+				}
+			} catch (Exception ex) {
+				ILog.get().error(ex.getMessage(), ex);
 			}
-		} catch (Exception ex) {
-			ILog.get().error(ex.getMessage(), ex);
 		}
 	}