java.lang.IllegalThreadStateException

Question

I am working with threads. However when I try to start a thread, I get a Exception. In concrete java.lang.IllegalThreadStateException. My code is:

public voi         


        

Answer 1

In fact, the call process is:

• From main method: controller.main(usbservice);

• In controller object:

  @Override
  public void main(Object argv) {
      if(this.writer == null)
          this.writer = new CommandWriting(usbservice);
      if(this.reader == null)
          this.reader = new CommandReading(usbservice);
      reader.readCommand();
  }
  

• In object reader is the readCommand method.

Then, it is only called once.