Exceptions in Conflunce server due to class not found exception

Some things that you should check first:

  • atlas-clean
  • Try version 2.3.1 of jaxb-api for Confluence 7.3.3
  • Use confluence-plugins-platform-pom at least as part of your dependencyManagement section to ensure you are having the correct dependency versions.
  • Try adding an explicit import javax.xml.bind.*;version:=${jaxb.version}
  • Use AMPS version 8.1.0 (specify in pom.xml or use -u 8.1.0 flag)

There is an open problem with some Confluence versions but that affects NoClassDefFoundError - which does not seem to be your problem. NoClassDefFoundError for Spring JDBC classes since Confluence 7.1.1