After upgrading to the version jenkins-2.46-1.1 my projects are stopped to work. I rolled back to the previews version jenkins-2.45-1 and all began to work.
The errors are:
1. FATAL: Could not initialize class sun.text.normalizer.NormalizerImpl
java.lang.NoClassDefFoundError: Could not initialize class sun.text.normalizer.NormalizerImpl

2. ERROR: Step 'Publish build status to GitLab commit (GitLab 8.1+ required)' aborted due to exception:
java.lang.NoClassDefFoundError: Could not initialize class sun.text.normalizer.NormalizerImpl