Maven build fails with Java 9 #26
Description
Building master with JDK 9.0.1, Maven 3.5.2 results in following output:
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] CSPARQL-engine/csparql-core/src/main/java/eu/larkc/csparql/core/old_parser/TreeBox.java:[53,16] cannot find symbol
symbol: class Regexp
location: package sun.misc
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] Multi Module CSPARQL Parent Project ................ SUCCESS [ 0.002 s]
[INFO] csparql-common ..................................... SUCCESS [ 0.565 s]
[INFO] csparql-cep-api .................................... SUCCESS [ 0.014 s]
[INFO] csparql-cep-esper .................................. SUCCESS [ 0.021 s]
[INFO] csparql-sparql-api ................................. SUCCESS [ 0.015 s]
[INFO] csparql-sparql-jena ................................ SUCCESS [ 0.021 s]
[INFO] csparql-sesame ..................................... SUCCESS [ 0.084 s]
[INFO] csparql-core ....................................... FAILURE [ 1.802 s]
[INFO] csparql-ui ......................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.659 s
[INFO] Finished at: 2018-02-11T16:15:28+09:00
[INFO] Final Memory: 18M/62M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project csparql-core: Compilation failure
[ERROR] CSPARQL-engine/csparql-core/src/main/java/eu/larkc/csparql/core/old_parser/TreeBox.java:[53,16] cannot find symbol
[ERROR] symbol: class Regexp
[ERROR] location: package sun.misc
[ERROR]
[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 :csparql-core
This seems to be caused by JDK-8137056: a lot of things have been moved from sun.misc to jdk.internal.misc.
It seems that it is possible to use private modules by fixing pom.