Check local version detection result

Copybara Import from https://github.com/bazelbuild/rules_java/pull/171

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Check local version detection result (#171)

In case the local Java version detection fails, e.g. due to a corrupt installation, skip further processing, as it results in a type error.

Closes #170

Closes #171
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COPYBARA_INTEGRATE_REVIEW=https://github.com/bazelbuild/rules_java/pull/171 from bertschneider:fix_local_version_detection 6943c45156edcd521aec87b5080c3cfc8c40f1e5
PiperOrigin-RevId: 607694805
Change-Id: Ib8005f6d40e15034f168121cdee8cebcc4a029f2