fix nullpointer in rulecommandhandler

5 jobs for 55-add-variable-view-to-goaloptionsview in 3 minutes and 51 seconds (queued for 40 seconds)
Status Job ID Name Coverage
  Build
failed #77572
allowed to fail
build:jdk10

00:00:31

passed #77573
build:jdk8

00:01:55

failed #77571
allowed to fail
build:jdk9

00:00:35

 
  Test
failed #77574
allowed to fail
test

00:00:31

 
  Deploy
failed #77575
allowed to fail
deploy

00:00:18

 
Name Stage Failure
failed
deploy Deploy There is an unknown failure, please try again

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BUILD FAILED in 8s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1
failed
test Test There is an unknown failure, please try again

* Try:
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BUILD FAILED in 21s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1
failed
build:jdk10 Build There is an unknown failure, please try again

* Try:
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* Get more help at https://help.gradle.org

BUILD FAILED in 22s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1
failed
build:jdk9 Build There is an unknown failure, please try again

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 23s
1 actionable task: 1 executed
ERROR: Job failed: exit code 1