Testing that a certain condition is met by running "Execute Shell" in the plugin. Have tried to return 0 and 1 through and the build never fails even though it is configured to do that.

The condition per se works, meaning that if the condition is met, the specified action is executed.

If the condition is NOT met, the action isn't executed, as expected.

However, the build is never marked as failed whatever the outcome of the evaluation of the condition.

This does NOT fail the build
{{
00:00:00.022 ++ find . -name dependency-check-report.xml
00:00:00.075 + RPT=
00:00:00.075 ++ test '!' -z ''
00:00:00.075 + exit
00:00:00.081 Run condition [Execute Shell] preventing perform for step [[Publish OWASP Dependency-Check analysis results]]
00:00:00.086 Started calculate disk usage of build
00:00:00.087 Finished Calculation of disk usage of build in 0 seconds
00:00:00.089 Started calculate disk usage of workspace
00:00:00.092 Finished Calculation of disk usage of workspace in 0 seconds
00:00:00.094 Finished: SUCCESS
}}

Nor does this:
{{00:00:00.023 ++ find . -name dependency_links.txt
00:00:00.075 + RPT=./info/dependency_links.txt
00:00:00.076 ++ test '!' -z ./info/dependency_links.txt
00:00:00.076 + exit
00:00:00.082 Run condition [Execute Shell] enabling perform for step [[Publish OWASP Dependency-Check analysis results]]
00:00:00.082 [DependencyCheck] Collecting Dependency-Check analysis files...
00:00:00.085 [DependencyCheck] Finding all files that match the pattern **/dependency-check-report.xml
00:00:00.088 [DependencyCheck] Computing warning deltas based on reference build #116
00:00:00.094 Started calculate disk usage of build
00:00:00.095 Finished Calculation of disk usage of build in 0 seconds
00:00:00.097 Started calculate disk usage of workspace
00:00:00.101 Finished Calculation of disk usage of workspace in 0 seconds
00:00:00.103 Finished: SUCCESS
}}

What do I have to do to fail the build if the condition per se is not met?