In some recent Mustang build, the message 'Warning: Could not get charToByteConverterClass!' (which seems to have been present for a long time in rt.jar!/com/sun/org/apache/xml/internal/serializer/Encodings.class) has begun to be printed to standard error, for no discernible reason, it seems while performing XSLT transformations.

Visible sometimes in log files of NetBeans IDE development builds. I can also reproduce by running the following on NB source code:

JAVA_HOME=/space/jdk1.6.0-b31 ant -f ant/project/build.xml test

All unit tests pass, but I also get the warning in several places, e.g.

---%<--- [portion of test output]
Warning: Could not get charToByteConverterClass!
Testsuite: org.netbeans.spi.project.support.ant.ProjectGeneratorTest
Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 2.414 sec

------------- Standard Error -----------------
Warning: Could not get charToByteConverterClass!
------------- ---------------- ---------------
---%<---

The same tests run in b26 just show:

---%<---
Testsuite: org.netbeans.spi.project.support.ant.ProjectGeneratorTest
Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 2.38 sec
---%<---

By the way, I run Fedora Core 3 (all updates applied) in UTF-8 locale.
###@###.### 2005-04-12 21:10:43 GMT