Artifactory Conda User Plugin exception

2017-09-26 12:32:55,405 [art-exec-5] [ERROR] (o.q.c.ErrorLogger   :2425) - Job (artifactory.PluginCommand#4ec1284c-2fec-456d-9023-081a765461a7 threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception.
        at org.quartz.core.JobRunShell.run(JobRunShell.java:213) ~[quartz-2.2.1.jar:na]
        at org.artifactory.schedule.ArtifactoryConcurrentExecutor$RunnableWrapper.run(ArtifactoryConcurrentExecutor.java:104) [artifactory-storage-common-5.1.3.jar:na]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_121]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_121]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_121]
Caused by: java.lang.NullPointerException: Cannot invoke method get() on null object
        at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:35) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:57) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125) ~[groovy-all-2.4.5.jar:2.4.5]
        at conda.indexPackagesRecursive(conda.groovy:114) ~[na:na]
        at conda$indexPackagesRecursive$6.callCurrent(Unknown Source) ~[na:na]
        at conda.indexPackagesRecursive(conda.groovy:153) ~[na:na]
        at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:810) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.GroovyObjectSupport.invokeMethod(GroovyObjectSupport.java:46) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeOnDelegationObjects(ClosureMetaClass.java:430) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:371) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:166) ~[groovy-all-2.4.5.jar:2.4.5]
        at conda$_run_closure2$_closure13.doCall(conda.groovy:80) ~[na:na]
        at conda$_run_closure2$_closure13.doCall(conda.groovy) ~[na:na]
        at sun.reflect.GeneratedMethodAccessor137.invoke(Unknown Source) ~[na:na]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
        at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019) ~[groovy-all-2.4.5.jar:2.4.5]
        at groovy.lang.Closure.call(Closure.java:426) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.ConvertedClosure.invokeCustom(ConvertedClosure.java:53) ~[groovy-all-2.4.5.jar:2.4.5]
        at org.codehaus.groovy.runtime.ConversionHandler.invoke(ConversionHandler.java:105) ~[groovy-all-2.4.5.jar:2.4.5]
        at com.sun.proxy.$Proxy187.execute(Unknown Source) ~[na:na]
        at org.artifactory.schedule.quartz.PluginCommand.onExecute(PluginCommand.java:55) ~[artifactory-core-5.1.3.jar:na]
        at org.artifactory.schedule.quartz.QuartzCommand.execute(QuartzCommand.java:52) ~[artifactory-storage-common-5.1.3.jar:na]
        at org.quartz.core.JobRunShell.run(JobRunShell.java:202) ~[quartz-2.2.1.jar:na]
        ... 4 common frames omitted