Do not add debug options if already available in JAVA_TOOL_OPTIONS

[c0d1ngm0nk3y]

fixes #274

Summary

If the java agent is already configured via JAVA_TOOL_OPTIONS, it is not added a second time since this would cause an error when starting the java process.

Use Cases

see issue

Checklist

• I have viewed, signed, and submitted the Contributor License Agreement.
• I have linked issue(s) that this PR should close using keywords or the Github UI (See docs)
• I have added an integration test, if necessary.
• I have reviewed the styleguide for guidance on my code quality.
• I'm happy with the commit history on this PR (I have rebased/squashed as needed).

[linux-foundation-easycla]

• ✅ login: c0d1ngm0nk3y / name: Ralf Pannemans (7188912, 7188912)
• ✅ login: modulo11 / name: Johannes Dillmann (7188912)
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[dmikusa]

Ignore EasyCLA for now. It seems to have lost its mind. Hopefully, that will be resolved soon.

[dmikusa]

/easycla

[dmikusa]

Thanks!

[c0d1ngm0nk3y]

@dmikusa Any idea when the next release is made? We are waiting for this change...

[dmikusa]

Sorry, I'll cut a release now. In the future, ping me or David and we can get stuff like this going more quickly.

It won't make it into the composites this week, but we can probably get the SAP Machine buildpack updated this week. I suspect that's the one you care about most?