General error during semantic analysis: Unsupported class file major version 61

[prashanthi-r]

When I run bash serve_grobid.sh, I encounter the following error

I'm using GROBID version 0.6.2, Java version 17.0.4 and Gradle version 8.1

  General error during semantic analysis: Unsupported class file major version 61
  
  java.lang.IllegalArgumentException: Unsupported class file major version 61
  	at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:196)
  	at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:177)
  	at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:163)
  	at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:284)
  	at org.codehaus.groovy.ast.decompiled.AsmDecompiler.parseClass(As ....```

[Irazall]

same here, found two pointers here:
https://stackoverflow.com/questions/73340168/general-error-during-conversion-unsupported-class-file-major-version-62-ionic-e
https://stackoverflow.com/questions/67079327/how-can-i-fix-unsupported-class-file-major-version-60-in-intellij-idea
and most importantly probably:
kermitt2/grobid#1057

[lfoppiano]

@prashanthi-r version 0.6.2 was not compatible with JDK 17. You have to update to at least 0.7.3.
To avoid such issues, you might want to try to use docker instead?

I opened a PR #20 for doing so