`ExceptionConverter.getStackTrace()` is empty

[maloewe-ona]

Describe the bug

The getStackTrace() method of com.lowagie.text.ExceptionConverter always returns an empty array.

This is pretty problematic because if an ExceptionConverter exception propagates to user code, and is there logged for example (which might use getStackTrace()), the user will see no stack trace at all.

To Reproduce

new ExceptionConverter(new IOException("test")).getStackTrace()
// ==> StackTraceElement[0] {  }

Expected behavior

getStackTrace() should return the stack trace

Though generally, maybe it would be worth reconsidering if all this special handling in ExceptionConverter is really worth it, or if it could be a normal exception class which just sets the original exception as cause, without any of this special handling. Respectively revert 94f6a23.

That might make the exception more verbose, but would at least guarantee that no information is lost.

System

• OpenPDF version: latest (4821449), respectively OpenPDF 2.0.3

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