Subj : Re: Rhino: Try/Catch problem
To   : Edwin S. Ramirez
From : Igor Bukanov
Date : Fri May 14 2004 08:28 pm

Edwin S. Ramirez wrote:
 > I tried Rhino 1.5R5 and the exception is still not caught by the
 > try/catch block.
 > When I run the code below, the exception contains a complete stack trace
 > from the outer
 > java code.
 > -ESR-


When I run
java -jar js.jar test.js

where js.jar is Rhino 1.5R5 and test.js contains:

function crash(b) {
   var a, str, num;
   a = b['x'];                   // NOT caught
   str = 'x'; a = b[str];      // NOT caught
   //a = b[1];                   // caught, ok
   //num = 1; a = b[num];        // caught, ok
   //a = b.x;                    // caught, ok
}

function testcatch() {
  try {
    crash(null);
    writeln('no error');
  } catch (e) {
    writeln('exception caught: '+e);
  }
}

testcatch()

function writeln(s)
{
	java.lang.System.out.println(s);
}

it prints:

exception caught: TypeError: Cannot read property "x" from null

Moreover, js.jar from 1.5R1 also catches the exception and prints:

exception caught: TypeError: Cannot convert null to an object.

So it must be a problem with your embedding or even JVM.

Regards, Igor

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