Run the following program:

###-------------------------------
package mypackage;
import java.awt.EventQueue;
public class Class1 {
  public static void main(String[] args) throws Exception {
    EventQueue.invokeAndWait(new Runnable() {
      public void run() {
        throw new Error();
      }
    });
    System.out.println("hello");
  }
}
###-------------------------------

The stack trace for the Error is printed, but the invokeAndWait call never returns, normally or abruptly. So the thread using invokeAndWait waits forever, and there is no deadlock.

In practice, we've seen this problem when using javax.swing.tree.DefaultMutableTreeNode, because some of its methods throw Error when an invariant is violated.
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