Name: akC45999 Date: 10/12/98



The Java API spec chapter Class Thread reads :
...
 public void start()

 Causes this thread to begin execution; the Java Virtual Machine
 calls the run method of this thread.
 The result is that two threads are running concurrently: the
 current thread (which returns from the call to the
 start method) and the other thread (which executes its
 run method).
 Throws: IllegalThreadStateException - if the thread was already started.
...

But test api/java_lang/Thread/start01/start0102 shows that when a thread
is already finished IllegalThreadStateException is not thrown at incorrect
invokation of Thread.start().

--------------------------------- start0102.java

import java.io.PrintStream;

public class start0102 extends Thread {

  boolean finish = true;

  public void run() {
try {
while(finish) Thread.sleep(10);
} catch(InterruptedException e) {
}
  }

  public static void main(String argv[]) {

start0102 testThread = new start0102();
testThread.start();

try {
testThread.start();
} catch(IllegalThreadStateException e) {
}

testThread.finish = false;
try {
testThread.join();
} catch(InterruptedException e) {
}

try {
testThread.start();
System.out.println("Bad");
} catch(IllegalThreadStateException e) {
System.out.println("Ok " + e);
}
  }
}

---------------------------------- output

novo48% java -fullversion
java full version "JDK-1.2fcs-M"
novo26% dotest
Bad
novo26%

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