JvmVersion.java

//  Copyright 2017 Twitter. All rights reserved.
//
//  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.
//  See the License for the specific language governing permissions and
//  limitations under the License.
package com.twitter.heron.instance.util;

/**
 * When run, prints to stdout the version of the java vm this class is being run in. This is used
 * by the executor to get just the java version of the VM for easy and consistent parsing.
 */
public final class JvmVersion {
  private JvmVersion() { }

  public static void main(String[] args) {
    System.out.print(System.getProperty("java.version"));
  }
}