bugfix NPE after reload

Status Job ID Name Coverage
  Setup
passed #25790
setup

00:01:09

 
  Build
passed #25791
build

00:00:56

 
  Test
passed #25792
test

00:01:13

 
  Deploy
passed #25793
allowed to fail
deploy

00:02:05

failed #25795
allowed to fail
site

00:00:35

passed #25794
allowed to fail
sonar

00:05:06

 
Name Stage Failure
failed
site Deploy There is an unknown failure, please try again
11066 [INFO] ------------------------------------------------------------------------
11072 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.3:site (default-cli) on project psdbg: failed to get report for org.apache.maven.plugins:maven-javadoc-plugin: Failed to execute goal on project matcher: Could not resolve dependencies for project edu.kit.iti.formal.psdbg:matcher:jar:0.1-SNAPSHOT: Could not find artifact edu.kit.iti.formal.psdbg:keydeps:jar:1.0 in central (https://repo.maven.apache.org/maven2) -> [Help 1]
11073 [ERROR]
11074 [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
11074 [ERROR] Re-run Maven using the -X switch to enable full debug logging.
11074 [ERROR]
11075 [ERROR] For more information about the errors and possible solutions, please read the following articles:
11076 [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
ERROR: Job failed: exit code 1