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8bitreid/JavaClassLanchHelperFix.md

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IntelliJ Class JavaLaunchHelper is implemented in both: Fix
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JavaClassLanchHelperFix.md

Issue:

When running a scala or java project I get this message, even though the project still compiles and runs.

objc[1069]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java (0x1009ba4c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x101b064e0). One of the two will be used. Which one is undefined

Fix:

  1. Open > Project Structure
  2. Edit > Remove the current JDK
  3. click the + button in the top left. then click JDK
  4. Then Select your JDK. In my case it was /Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home

This is the resolution. Hope this helps.

@azwar
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azwar commented Aug 9, 2021

Thank you for this solution

@da0811
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da0811 commented Sep 11, 2022

Thank you. My steps differed but you helped m get there.

I clicked the JDK path drop-down field in the Project Structure>>SDKs window, and rather than the "detected JDK", I clicked the version I want, and no longer see the error message.

@ajinsunny
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Thank you for this solution. This really helped.

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