What steps will reproduce the problem? 1. Create a simple application which utilizes Xerces as described in Xerces tutorial: http://www.totheriver.com/learn/xml/xmltutorial.html#6.1.1 2. Execute it together with jTracert

What is the expected output? What do you see instead?

jTracert should analyze the application and build the sequence diagrams. Instead we get a null pointer exception as shown below:

java.lang.NullPointerException at com.google.code.jtracert.traceBuilder.impl.MethodCallTraceBuilderImpl.leave(MethodCallTraceBuilderImpl.java:323) at com.google.code.jtracert.samples.Xerces.main(Unknown Source)

Please use labels and text to provide additional information.

GNU/Linux java version "1.6.0_07" Java(TM) SE Runtime Environment (build 1.6.0_07-b06) Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode)

Sample application 'xerces' is now added to SVN

The problem is actually not concerned with Xerces.

jTracert incorrectly analyzes constructors - when one constructor calls the other one, or parent constructor. We cannot insert custom code before parent constructor call, so this can be a problem.

Priority raised to Critical.

I've created a separate branch for fixing this defect, since it may require significant changes and may take a lot of time. http://code.google.com/p/jtracert/source/browse/#svn/branches/issue9

Fixed in svn revision r126 ( issue9 branch )

Fixed in jTracert version 0.0.5