while creating a repo getting the below error

Parsing POMsarsing POMs
ERROR: Processing failed due to a bug in the code. Please report this to the issue tracker (https://jenkins.io/redirect/report-an-issue).
java.lang.NullPointerException
    at java.util.Hashtable.put(Hashtable.java:460)
    at hudson.maven.MavenModuleSetBuild$PomParser.<init>(MavenModuleSetBuild.java:1172)
    at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.parsePoms(MavenModuleSetBuild.java:986)
    at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:691)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:514)
    at hudson.model.Run.execute(Run.java:1888)
    at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543)
    at hudson.model.ResourceController.execute(ResourceController.java:99)
    at hudson.model.Executor.run(Executor.java:431)
project=hudson.maven.MavenModuleSet@164906b[create-repo]
project.getModules()=[hudson.maven.MavenModule@62c05359[create-repo/com.XXXXX.maven.mojos:create-repo][create-repo/com.XXXXX.maven.mojos:create-repo][relativePath:]]
project.getRootModule()=hudson.maven.MavenModule@62c05359[create-repo/com.XXXXX.maven.mojos:create-repo][create-repo/com.XXXXX.maven.mojos:create-repo][relativePath:]
FATAL: null
java.lang.NullPointerException
    at java.util.Hashtable.put(Hashtable.java:460)
    at hudson.maven.MavenModuleSetBuild$PomParser.<init>(MavenModuleSetBuild.java:1172)
    at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.parsePoms(MavenModuleSetBuild.java:986)
    at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:691)
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:514)
    at hudson.model.Run.execute(Run.java:1888)
    at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:543)
    at hudson.model.ResourceController.execute(ResourceController.java:99)
    at hudson.model.Executor.run(Executor.java:431)
Finished: FAILURE