code: public static void throwIfJvmFatal(@Nullable Throwable t) {
  		if (t instanceof VirtualMachineError) {
  			throw (VirtualMachineError) t;
  		}
  		if (t instanceof ThreadDeath) {
  			throw (ThreadDeath) t;
  		}
  		if (t instanceof LinkageError) {
  			throw (LinkageError) t;
  		}
  	}
docs: Throws a particular {@code Throwable} only if it belongs to a set of "fatal" error
  varieties native to the JVM. These varieties are as follows:
  <ul> <li>{@link VirtualMachineError}</li> <li>{@link ThreadDeath}</li>
  <li>{@link LinkageError}</li> </ul>
  
  @param t the exception to evaluate