This happens on macOS and Ubuntu

• • • Warning do this on a clean checkout ****

cd engine

Delete ONAP-PAP-REST to clean it
rm fr ONAP--PAP-REST

Check it out again
git co – .

Build ONAP-PAP-REST
mvn clean install

<blah blah>

Results :

Tests in error:
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...
  XACMLPAPTest.setUp:102 » Servlet PE200 - System Error: PAP not initialized; un...

Build again:

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

It's probably some initialization thing. Not too serious but could look very bad if someone checks out code and it can't build.