So it looks like the fix we did last week on not running findbugs on fedora didn't fix all the failures of engine failing to build [1].
07:42:27 [INFO] WebAdmin .......................................... FAILURE [5:36.003s]
07:42:27 [INFO] UserPortal ........................................ SKIPPED
07:42:27 [INFO] oVirt Server EAR .................................. SKIPPED
07:42:27 [INFO] ovirt-engine maven make ........................... SKIPPED
07:42:27 [INFO] ------------------------------------------------------------------------
07:42:27 [INFO] BUILD FAILURE
07:42:27 [INFO] ------------------------------------------------------------------------
07:42:27 [INFO] Total time: 13:12.947s
07:42:27 [INFO] Finished at: Sun Sep 17 07:42:27 GMT 2017
07:42:29 [INFO] Final Memory: 547M/1317M
07:42:29 [INFO] ------------------------------------------------------------------------
07:42:29 [ERROR] Failed to execute goal org.codehaus.mojo:gwt-maven-plugin:2.6.1:compile (gwtcompile) on project webadmin: Command [[
07:42:29 [ERROR] /bin/sh -c /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.144-0.b01.el7_4.x86_64/jre/bin/java -javaagent:/root/.m2/repository/org/aspectj/aspectjweaver/1.8.2/aspectjweaver-1.8.2.jar -Dgwt.jjs.permutationWorkerFactory=com.google.gwt.dev.ThreadedPermutationWorkerFactory \
07:42:29 [ERROR] -Dgwt.jjs.maxThreads=4 \
07:42:29 [ERROR] -Djava.io.tmpdir="/home/jenkins/workspace/ovirt-engine_4.1_build-artifacts-el7-x86_64/ovirt-engine/rpmbuild/BUILD/ovirt-engine-4.1.6.3/frontend/webadmin/modules/webadmin/target/tmp" \
07:42:29 [ERROR] -Djava.util.prefs.systemRoot="/home/jenkins/workspace/ovirt-engine_4.1_build-artifacts-el7-x86_64/ovirt-engine/rpmbuild/BUILD/ovirt-engine-4.1.6.3/frontend/webadmin/modules/webadmin/target/tmp" \
07:42:29 [ERROR] -Djava.util.prefs.userRoot="/home/jenkins/workspace/ovirt-engine_4.1_build-artifacts-el7-x86_64/ovirt-engine/rpmbuild/BUILD/ovirt-engine-4.1.6.3/frontend/webadmin/modules/webadmin/target/tmp" \
07:42:29 [ERROR] -Djava.util.logging.config.class=org.ovirt.engine.ui.gwtextension.JavaLoggingConfig \
07:42:29 [ERROR] -Xms1G -Xmx4G '-Dgwt.dontPrune=org\.ovirt\.engine\.core\.(common|compat)\..*' -classpath /home/jenkins/workspace/ovirt-engine_4.1_build-artifacts-el7-x86_64/ovirt-engine/rpmbuild/BUILD/ovirt-engine-4.1.6.3/frontend/webadmin/modules/webadmin/target/webadmin-4.1.6.3-SNAPSHOT/WEB-INF/classes:/home/jenkins/workspace/ovirt-engine_4.1_build-artifacts-el7-x86_64/ovirt-engine/rpmbuild/BUILD/ovirt-engine-4.1.6.3/frontend/webadmin/modules/webadmin/src/main/java:/home/jenkins/workspace/ovirt-