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https://issues.apache.org/jira/browse/CXF-3878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135421#comment-13135421
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Sergey Beryozkin commented on CXF-3878:
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Hi Dan - thanks for the fix - that printing to the stderr was messy - Glen
asked me to remove that awhile back but somehow I forgot.
JAXBProviders would LOG the captured trace but NPE is escaping that...
I'll probably create some exception utils later on and push this common code
there
cheers
> org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper does not print the
> WebApplicationException stack trace even when log level is set to FINEST
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CXF-3878
> URL: https://issues.apache.org/jira/browse/CXF-3878
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 2.3.7, 2.4.3
> Environment: Windows 7 64-bit, JDK 1.7.0
> Reporter: Kartik Pandya
> Priority: Minor
> Labels: log
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> WebApplicationException occurring as a result of a JAXB mapping (an internal
> NullPointerException caused it), never got printed on the console or in the
> logs. The following message did get printed:
> WARNING WebApplicationException has been caught, cause:
> java.lang.NullPointerException
> But beyond this, no other information was available. Debugging revealed that
> the problem was in JAXB mapping in one of my classes, but it would have been
> very helpful if the exception trace is printed in the logs or on the console.
> The problem remained even after setting the log levels in logging.properties
> to FINEST. Other FINEST logs did get printed fine, except for the stack
> trace of the exception. My research showed that the
> setPrintStackTrace(boolean) method of WebApplicationExceptionMapper never
> gets called from anywhere. This will mean that the printStackTrace variable
> of the class always remains false, resulting in eternal shadowing of the
> stack trace.
> I made a small change to my local copy of
> org.apache.cxf.jaxrs.impl.WebApplicationExceptionMapper Java file and patched
> it to cxf-2.4.3.jar to get the stack trace in my logs when log level was set
> to INFO or lower. The three line change is as below:
> public Response toResponse(WebApplicationException ex) {
> + if(LOG.isLoggable(Level.INFO)) {
> + printStackTrace = true;
> + }
> ...
> (lines with + are added lines)
> It would be great if you can make this change in subsequent versions.
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