build 1010, XP.ja_JP
I'm running in the Japan locale, using a pseudo localized Netbeans.
1. Create bpel module
2. Add bpel process
3. Make sequence element incomplete
4. Open xml source
5. Invoke Check XML action
Message with a text not from pseudo localized bundle file appears in output.
ex: Remove the last '>' from <sequence> in editor then press check xml button.
The following text will be shown not from pseudo localized bundle file appears in output:
Element type "sequence" must be followed by either attribute specifications, ">" or "/>". 
Check also other messages.
Created attachment 51040 [details]
The code gets an org.xml.sax.SAXParseException. This class is from the J2SE code base. We do
SAXParseException.getLocalizedMessage() and then display the localized message. I looked at SAXParseException source
code and they do not localize the exception message. Since the exception msg is from jdk, there isnt much we can do here.