does anyone else get this error while make clean build of ovirt? upgrading to maven 3.6 did not help , the funny thing is i did not even make any change and i started getting this error

Any help would be appreciated.

Thanks,

Prajith

[INFO] ------------< org.ovirt.engine:ovirt-checkstyle-extension >-------------
[INFO] Building oVirt Checkstyle Checks 4.4.0-SNAPSHOT                   [5/62]
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.4.3:resources (default-resources) @ ovirt-checkstyle-extension ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO] Copying 1 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ ovirt-checkstyle-extension ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 5 source files to /home/prajip/workspace/ovirt-engine/build-tools-root/ovirt-checkstyle-extension/target/classes
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] oVirt Findbugs Filters ............................. SUCCESS [  1.113 s]
[INFO] ovirt-root 4.4.0-SNAPSHOT .......................... SUCCESS [  0.317 s]
[INFO] oVirt Build Tools root ............................. SUCCESS [  0.042 s]
[INFO] oVirt checkstyle ................................... SUCCESS [ 16.461 s]
[INFO] oVirt Checkstyle Checks ............................ FAILURE [  0.159 s]
[INFO] oVirt Modules - backend ............................ SKIPPED
[INFO] oVirt Manager ...................................... SKIPPED
[INFO] oVirt Engine dependencies .......................... SKIPPED
[INFO] oVirt Engine common dependencies ................... SKIPPED
[INFO] oVirt Engine tools dependencies .................... SKIPPED
[INFO] Utilities to extend java.logging framework ......... SKIPPED
[INFO] Extensions API root 0.0.0-SNAPSHOT ................. SKIPPED
[INFO] ovirt-engine-extensions-api 0.0.0-SNAPSHOT ......... SKIPPED
[INFO] oVirt Modules - manager ............................ SKIPPED
[INFO] Universal utilities ................................ SKIPPED
[INFO] Extensions manager ................................. SKIPPED
[INFO] GWT UI Compatibility ............................... SKIPPED
[INFO] Common Code ........................................ SKIPPED
[INFO] Common utilities ................................... SKIPPED
[INFO] Branding package ................................... SKIPPED
[INFO] ovirt-engine sso ................................... SKIPPED
[INFO] Data Access Layer .................................. SKIPPED
[INFO] engine scheduler bean .............................. SKIPPED
[INFO] Vds broker ......................................... SKIPPED
[INFO] builtin-extensions ................................. SKIPPED
[INFO] Search Backend ..................................... SKIPPED
[INFO] Backend Authentication, Authorization and Accounting SKIPPED
[INFO] Custom Application Server Authentication Plugin .... SKIPPED
[INFO] Backend Logic @Service bean ........................ SKIPPED
[INFO] oVirt RESTful API Backend Integration .............. SKIPPED
[INFO] oVirt RESTful API interface ........................ SKIPPED
[INFO] oVirt Engine API Definition ........................ SKIPPED
[INFO] oVirt Engine API Commom Parent POM ................. SKIPPED
[INFO] oVirt Engine API Common JAX-RS ..................... SKIPPED
[INFO] oVirt RESTful API Backend Integration Type Mappers . SKIPPED
[INFO] oVirt RESTful API Backend Integration JAX-RS Resources SKIPPED
[INFO] oVirt RESTful API Backend Integration Webapp ....... SKIPPED
[INFO] oVirt RESTful API Documentation .................... SKIPPED
[INFO] Custom Logger Using Extensions ..................... SKIPPED
[INFO] oVirt Engine Web Root .............................. SKIPPED
[INFO] ovirt-engine services .............................. SKIPPED
[INFO] ovirt-engine docs .................................. SKIPPED
[INFO] ovirt-engine welcome ............................... SKIPPED
[INFO] oVirt Engine Microbenchmarks ....................... SKIPPED
[INFO] oVirt Engine Tools ................................. SKIPPED
[INFO] oVirt Engine extensions tool ....................... SKIPPED
[INFO] oVirt Engine sso client registration tool .......... SKIPPED
[INFO] oVirt Modules :: Frontend .......................... SKIPPED
[INFO] oVirt Modules :: Brands ............................ SKIPPED
[INFO] oVirt Engine brand ................................. SKIPPED
[INFO] oVirt Modules :: Webadmin .......................... SKIPPED
[INFO] oVirt UI Modules ................................... SKIPPED
[INFO] AOP tweaks for GWT compiler ........................ SKIPPED
[INFO] Extensions for GWT ................................. SKIPPED
[INFO] UI Utils Compatibility (for UICommon) .............. SKIPPED
[INFO] Frontend for GWT UI Projects ....................... SKIPPED
[INFO] UICommonWeb ........................................ SKIPPED
[INFO] oVirt GWT UI common infrastructure ................. SKIPPED
[INFO] Frontend Assembly Descriptors ...................... SKIPPED
[INFO] WebAdmin ........................................... SKIPPED
[INFO] oVirt Server EAR ................................... SKIPPED
[INFO] ovirt-engine maven make 4.4.0-SNAPSHOT ............. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18.850 s
[INFO] Finished at: 2019-11-25T15:08:58+05:30
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project ovirt-checkstyle-extension: Fatal error compiling: invalid flag: --release -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :ovirt-checkstyle-extension