maven does not build with java 10

[Pierre Labastie]

The end of the log is:

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Maven 3.5.3 ................................. SUCCESS [ 26.231 s]
[INFO] Maven Model ........................................ FAILURE [  8.567 s]
[INFO] Maven Artifact ..................................... SKIPPED
[INFO] Maven Plugin API ................................... SKIPPED
[INFO] Maven Builder Support .............................. SKIPPED
[INFO] Maven Model Builder ................................ SKIPPED
[INFO] Maven Settings ..................................... SKIPPED
[INFO] Maven Settings Builder ............................. SKIPPED
[INFO] Maven Repository Metadata Model .................... SKIPPED
[INFO] Maven Artifact Resolver Provider ................... SKIPPED
[INFO] Maven Core ......................................... SKIPPED
[INFO] Maven SLF4J Simple Provider ........................ SKIPPED
[INFO] Maven Embedder ..................................... SKIPPED
[INFO] Maven Compat ....................................... SKIPPED
[INFO] Apache Maven Distribution 3.5.3 .................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 36.754 s
[INFO] Finished at: 2018-05-15T17:45:59+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.20.1:test (default-test) on project maven-model: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.20.1:test failed.: NullPointerException -> [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/PluginExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :maven-model

[Pierre Labastie]

Maven uses java version at some places, and the format of the java version has changed when moving to java 10... So it fails when running the tests (surefire returns a NullPointer exception when trying to access the version of the jdk). It can be corrected by moving to a more recent version of surefire, adding <version>2.21.0</version> at the right place in pom.xml.

sed '/-surefire-/a<version>2.21.0</version>' \
    -i pom.xml

This allows to fix the error, but the build fails later with:

[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Maven 3.5.3 ................................. SUCCESS [  3.420 s]
[INFO] Maven Model ........................................ SUCCESS [  8.287 s]
[INFO] Maven Artifact ..................................... SUCCESS [  4.086 s]
[INFO] Maven Plugin API ................................... SUCCESS [  3.026 s]
[INFO] Maven Builder Support .............................. SUCCESS [  1.429 s]
[INFO] Maven Model Builder ................................ SUCCESS [  7.288 s]
[INFO] Maven Settings ..................................... SUCCESS [  0.701 s]
[INFO] Maven Settings Builder ............................. SUCCESS [  1.822 s]
[INFO] Maven Repository Metadata Model .................... SUCCESS [  0.502 s]
[INFO] Maven Artifact Resolver Provider ................... SUCCESS [  6.585 s]
[INFO] Maven Core ......................................... SUCCESS [ 25.330 s]
[INFO] Maven SLF4J Simple Provider ........................ SUCCESS [  4.737 s]
[INFO] Maven Embedder ..................................... FAILURE [  4.777 s]
[INFO] Maven Compat ....................................... SKIPPED
[INFO] Apache Maven Distribution 3.5.3 .................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:12 min
[INFO] Finished at: 2018-05-15T17:54:59+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.21.0:test (default-test) on project maven-embedder: There are test failures.
[ERROR] 
[ERROR] Please refer to /sources/maven/apache-maven-3.5.3/maven-embedder/target/surefire-reports for the individual test results.
[ERROR] Please refer to dump files (if any exist) [date]-jvmRun[N].dump, [date].dumpstream and [date]-jvmRun[N].dumpstream.
[ERROR] -> [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/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :maven-embedder

It is again a problem with Java version, but now in another module. The following sed allows to build:

sed '/<commonsLang/s/3\.5/3.7/' \
    -i pom.xml

[Pierre Labastie]

Fixed at r20148