reactive-streams fails to build with OpenJDK 17 because it invokes javac
with the source/target options set to 6. Since OpenJDK 12 the minimum
version supported is 7.
:reactive-streams:compileJava
Putting task artifact state for task ':reactive-streams:compileJava' into context took 0.002 secs.
Up-to-date check for task ':reactive-streams:compileJava' took 0.024 secs. It is not up-to-date because:
No history is available.
All input files are considered out-of-date for incremental task ':reactive-streams:compileJava'.
Compiling with JDK Java compiler API.
error: Source option 6 is no longer supported. Use 7 or later.
error: Target option 6 is no longer supported. Use 7 or later.
:reactive-streams:compileJava FAILED
:reactive-streams:compileJava (Thread[Task worker for ':' Thread 2,5,main]) completed. Took 0.204 secs.