I configured Jenkins to store test results in the global Postgres database as described in the documentation. I ran a pipeline job which had worked. The "junit" step stored test results in the database, then failed because it threw a NullPointerException. I am not able to find any specifics about what caused the exception.

Failed step log:

03:01:26 null
03:01:26 Saved 12587 test cases into database.

Snippet from pipeline:

def junit_pattern = '*_xunit.xml'
junit testResults: junit_pattern, testDataPublishers: [[$class: 'StabilityTestDataPublisher'], [$class: 'AttachmentPublisher']]