Annotation processor tests fail when run in Japanese environment #715
Description
For example:
testCommandWithBundle
Expected a warning containing "Supported source version 'RELEASE_6' from annotation processor 'picocli.annotation.processing.tests", but only found:
注釈プロセッサ'picocli.annotation.processing.tests.CommandSpec2YamlProcessor'から-source '1.8'より小さいソース・バージョン'RELEASE_6'がサポートされています
at picocli.annotation.processing.tests.AbstractCommandSpecProcessorTest.assertOnlySourceVersionWarning(AbstractCommandSpecProcessorTest.java:171)
at picocli.annotation.processing.tests.AbstractCommandSpecProcessorTest.testCommandWithBundle(AbstractCommandSpecProcessorTest.java:147)
The failing tests are:
AbstractCommandSpecProcessorTest. testCommandWithBundle
AbstractCommandSpecProcessorTest. testCommandWithMixin
AbstractCommandSpecProcessorTest. testGetterMethodOnInterface
AbstractCommandSpecProcessorTest. testSetterMethodOnClass
AbstractCommandSpecProcessorTest. testSubcommands