Maven goal "validate" fails for module "simulator" because of "nativelibs4java"
### Summary
The Maven goal "validate" fails for module "simulator" on branch "java_migration".
### Steps to reproduce
Run in console:
1. git checkout java_migration origin/java_migration
2. mvn validate
### Logs and outputs
<details>
<summary>Expand Maven log for "validate" goal</summary>
<pre>
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dvisualvm.id=6792388674860 -Dmaven.multiModuleProjectDirectory=/home/benedikt/Repos/Vadere/vadere -Dmaven.home=/usr/share/maven -Dclassworlds.conf=/usr/share/maven/bin/m2.conf -javaagent:/opt/idea-IC-181.5087.20/lib/idea_rt.jar=42119:/opt/idea-IC-181.5087.20/bin -Dfile.encoding=UTF-8 -classpath /usr/share/maven/boot/plexus-classworlds-2.x.jar org.codehaus.classworlds.Launcher -Didea.version=2018.1.4 validate -f pom.xml
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.google.inject.internal.cglib.core.$ReflectUtils$1 (file:/usr/share/maven/lib/guice.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of com.google.inject.internal.cglib.core.$ReflectUtils$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] vadere
[INFO] VadereUtils
[INFO] Vadere Annotation
[INFO] VadereState
[INFO] VadereGeometry
[INFO] Vadere Simulator
[INFO] VadereGUI
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building vadere 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-maven) @ vadere ---
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building VadereUtils 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-maven) @ utils ---
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Vadere Annotation 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-maven) @ annotation ---
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building VadereState 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-maven) @ state ---
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building VadereGeometry 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-enforcer-plugin:3.0.0-M2:enforce (enforce-maven) @ meshing ---
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Vadere Simulator 0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/state/0.1-SNAPSHOT/maven-metadata.xml
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/meshing/0.1-SNAPSHOT/maven-metadata.xml
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/utils/0.1-SNAPSHOT/maven-metadata.xml
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/state/0.1-SNAPSHOT/state-0.1-SNAPSHOT.jar
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/utils/0.1-SNAPSHOT/utils-0.1-SNAPSHOT.jar
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/annotation/0.1-SNAPSHOT/annotation-0.1-SNAPSHOT.jar
Downloading from nativelibs4java: http://nativelibs4java.sourceforge.net/maven/org/vadere/meshing/0.1-SNAPSHOT/meshing-0.1-SNAPSHOT.jar
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] vadere ............................................. SUCCESS [ 0.496 s]
[INFO] VadereUtils ........................................ SUCCESS [ 0.039 s]
[INFO] Vadere Annotation .................................. SUCCESS [ 0.040 s]
[INFO] VadereState ........................................ SUCCESS [ 0.026 s]
[INFO] VadereGeometry ..................................... SUCCESS [ 0.020 s]
[INFO] Vadere Simulator ................................... FAILURE [ 1.819 s]
[INFO] VadereGUI .......................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.598 s
[INFO] Finished at: 2019-02-25T09:05:32+01:00
[INFO] Final Memory: 13M/57M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project simulator: Could not resolve dependencies for project org.vadere:simulator:jar:0.1-SNAPSHOT: The following artifacts could not be resolved: org.vadere:state:jar:0.1-SNAPSHOT, org.vadere:utils:jar:0.1-SNAPSHOT, org.vadere:annotation:jar:0.1-SNAPSHOT, org.vadere:meshing:jar:0.1-SNAPSHOT: Could not find artifact org.vadere:state:jar:0.1-SNAPSHOT in nativelibs4java (http://nativelibs4java.sourceforge.net/maven) -> [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/DependencyResolutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :simulator
Process finished with exit code 1
</pre>
</details>
issue