investigate fmt-maven-plugin upgrade error #3553
Description
fmt-maven-plugin upgrade to 2.13 is failing on error for ci/lint and ci/showcase, but pass for other ci checks.
see #3544 (comment)
Found this old attempt to upgrade failing with Java incompatible: #941 unsure if related.
One other clue is #2533, shows com.google.googlejavaformat:google-java-format version in project is not uniformed. and google-java-format 1.14 requires java 11 (ref: #952)