Trouble Compiling Apache POI 5.2.2 Code - Factory.newInstance() methods

Question

Apache POI newbie.

I am trying to use Apache POI 5.2.2 to generate footnotes in a Word document.

There are some useful SO posts on this topic:

• Need to add a footnote in between texts and the next text should be appeared in the same line not in the next line in Apache poi
• Need to insert the text at the end of the page but the table is still continuing in the next page

However, when I try to run those examples, I get very consistent errors on these 3 Factory.newInstance() methods:

• CTFtnEdn.Factory.newInstance();
• CTStyle.Factory.newInstance();
• CTDecimalNumber.Factory.newInstance();

The compiler says: "error: incompatible types: XmlObject cannot be converted to" either CTFtnEdn, CTStyle or CTDecimalNumber, as applicable.

Here is the full compilation error for one of these, but all 3 are similar:

Footnotes.java:68: error: incompatible types: XmlObject cannot be converted to CTFtnEdn CTFtnEdn ctfInstance = CTFtnEdn.Factory.newInstance();

poi-ooxml-full-5.2.2.jar is included in the compilation classpath.

I assume I have not included one or more jar files needed to get this working.

Any ideas how to get this working?

Answer 1

I believe I had conflicting jar files in the classpath. Removing one has fixed the issue. Axel Richter, thanks for helping me identify that.