What new methods are added to the Process API in Java 9?

Java 9 improves the Process class by adding new methods and also provides new interfaces: ProcessHandle and ProcessHandle .Info to get all the details about the process and its information.

The following is a list of new methods added to Process in Java 9

• booleansupportsNormalTermination ():Returns true if executing destroy() terminates the process normally, Otherwise return false.
• long pid():Can return the native process ID of the process.
• ProcessHandle toHandle(): It can return the ProcessHandle of the process.
Streamchildren(): It can return a snapshot of the direct children of a process.
• Streamdescendants(): It can return a snapshot of the descendants of a process.
• ProcessHandle.Info info(): It can return a snapshot of information about the process.
• CompletableFuture onExit(): It can return a CompletableFuture to terminate the process.

Example

public class ProcessTest {
   public static void main(String args[]) {
<strong>      ProcessHandle </strong>processHandle = ProcessHandle.current();
<strong>      ProcessHandle.Info</strong> processInfo = processHandle.info();
      System.out.println(processHandle.<strong>pid()</strong>);
      System.out.println(processHandle.<strong>parent()</strong>);
      System.out.println(processInfo.<strong>arguments()</strong>.<strong>isPresent()</strong>);
      System.out.println(processInfo.<strong>command()</strong>.<strong>isPresent()</strong>);
      System.out.println(processInfo.<strong>command().get().contains</strong>("tutorialspoint"));
      System.out.println(processInfo.<strong>startInstant().isPresent()</strong>);
   }
}

Output

<strong>4892
Optional[7788]
false
true
false
true</strong>

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