Yep ... found it. In our ANT build process, we copy all the files from our /lib directory to our /WEB-INF/lib directory. But ... it does not clean out any previously existing jars ... so they were there when I did my build. I knew it had to be something with our build process because the code ran well from within Eclipse where the classpath did NOT have the old jar.

Thanks for the help! Tom

Nick Burch wrote:
On Mon, 28 Apr 2008, Tom Holmes Jr. wrote:
And then I get this error:
java.lang.NoSuchMethodError: org.apache.poi.hssf.usermodel.HSSFCell.getRichStringCellValue()Lorg/apache/poi/hssf/usermodel/HSSFRichTextString;

You have an older version of POI somewhere on your classpath

Try outputting in your webapp something like:
   HSSFCell.class.getClassLoader().
getResource("org/apache/poi/hssf/usermodel/HSSFCell.class").getPath()

You should get back a path to your .jar file, which my guess is actually poi 2.5.1 hiding somewhere

Nick

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