Error: Could not find or load main class #1085

[2019-10-02 16:48:22.718] [exthost] [error] [redhat.java] provider FAILED
[2019-10-02 16:48:22.720] [exthost] [error] Error: The request (id: 28, method: 'textDocument/hover') has been cancelled
	at c:\Users\tingh\.vscode\extensions\redhat.java-0.50.0\dist\extension.js:1:68555
	at c:\Users\tingh\.vscode\extensions\redhat.java-0.50.0\dist\extension.js:1:68849
	at Immediate.module.exports.M.G.Y.size.setImmediate (c:\Users\tingh\.vscode\extensions\redhat.java-0.50.0\dist\extension.js:1:69210)
	at runCallback (timers.js:694:18)
	at tryOnImmediate (timers.js:665:5)
	at processImmediate (timers.js:647:5)
[2019-10-02 16:48:23.302] [exthost] [info] ExtensionService#_doActivateExtension ms-vscode.cpptools {"startup":false,"activationEvent":"onDebug"}
[2019-10-02 16:48:23.302] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Users/tingh/.vscode/extensions/ms-vscode.cpptools-0.25.1/dist/main
[2019-10-02 16:48:23.429] [exthost] [info] ExtensionService#_doActivateExtension vscode.debug-server-ready {"startup":false,"activationEvent":"onDebugResolve"}
[2019-10-02 16:48:23.429] [exthost] [info] ExtensionService#loadCommonJSModule file:///c:/Program Files/Microsoft VS Code/resources/app/extensions/debug-server-ready/dist/extension
Environment
Operating System: Windows 10 x64 Pro 1903, Build 18362.356
JDK version: Oracle Java 12.0.2
Visual Studio Code version: 1.38.1
Java extension version: 0.50.0
Steps To Reproduce
Sample Project: (FileIO.java)




    

import java.io.File;
import java.io.IOException;
import java.util.Scanner;
public class FileIO {
    public static void main(String[] args)
    throws IOException {
        File file = new File("data.txt");
        Scanner fileInput = new Scanner(file);
        for(int i = 0; i < 5; i++) {
            System.out.println(
                i + ": " + fileInput.nextDouble()
        fileInput.close();
Current Result
c:\Research\test_jav>cd C:\Research\test_jav && C:\Users\tingh\.vscode\extensions\vscjava.vscode-java-debug-0.22.0\scripts\launcher.bat "C:\Program 
Files\Java\jdk-12.0.2\bin\java" --enable-preview -Dfile.encoding=UTF-8 -cp C:\Users\tingh\AppData\Roaming\Code\User\workspaceStorage\24ee80637ed5c707879e2f0bc2507a43\redhat.java\jdt_ws\jdt.ls-java-project\bin FileIO
Error: Could not find or load main class FileIO
Caused by: java.lang.ClassNotFoundException: FileIO
Expected Result
c:\Research\test_jav>"C:\Program Files\Java\jdk-12.0.2\bin\java" FileIO.java
0: 11.0
1: 22.0
2: 33.0
3: 44.0
4: 55.0
Additional Informations
👍1