Handle leak running in Windows

[effad]

When running this code with Java 13 in Windows:

import java.util.List;

import org.jutils.jprocesses.JProcesses;
import org.jutils.jprocesses.model.ProcessInfo;

public class LeakTest {

    public static void main(String[] args) throws InterruptedException {
        JProcesses jpro = JProcesses.get();
        jpro.fastMode();
        while (true) {
            List<ProcessInfo> processInfos = jpro.listProcesses();
            Thread.sleep(100);
            System.out.println("Run " + System.currentTimeMillis());
        }
    }
}

the number of open windows (file) handles will grow constantly.

[effad]

The leak also occurs with JDK-1.8.0_202

[effad]

I think the actual bug is in com.profesorfalken.wmi4java.WMIVBScript.executeScript(String).

[effad]

By adding

                    process.getInputStream().close();
                    process.getOutputStream().close();
                    process.getErrorStream().close();

at the end of executeScript the leak can be made smaller, but it does not disappear altogether.

[effad]

By adding

                  process.getInputStream().close();
                  process.getOutputStream().close();
                  process.getErrorStream().close();

at the end of executeScript the leak can be made smaller, but it does not disappear altogether.

Yes it does disappear completely, but the Garbage Collector has to be run in order for the handles to be freed.