A example which lead to this error is file XPATHErrorResource_<local>.java under org/apache/xpath/res and XSLTErrorResource_<local>.java under org/apache/xalan/res especially in european locale such as fr and it etc.

For example, in XSLTErrorResource_it.java line 2017 for ER_ATTR_NOT_ALLOWED=209, which message looks like:

  /** attribute is not allowed on the element */
  public static final int ER_ATTR_NOT_ALLOWED = 209;

  static
  {
    contents[ER_ATTR_NOT_ALLOWED][1] =
        "\"{0}\": questo attributo non \u00e8 consentito sull'elemento {1}.";
  }

between "sull" and "elemento" there have a single quote, which will lead to the error result(the final message miss that character)

reproduce by fellow:
1.get the attachment file 2.xsl
2.run "java org.apache.xalan.xslt.Process -XSL 2.xsl
3.will see the error result on the console which is the 209 error message and miss the single quote.

The reason is descripted in fellow url:
http://java.sun.com/j2se/1.4/docs/api/java/text/MessageFormat.html

should use double single quote "''" represents a single quote.