gradle
8.3

# getSource

open fun getSource(): String

-source release

Specifies the version of source code accepted. The following values for release are allowed:

1.5 javadoc accepts code containing generics and other language features introduced in JDK 1.5. The compiler defaults to the 1.5 behavior if the -source flag is not used. 1.4 javadoc accepts code containing assertions, which were introduced in JDK 1.4. 1.3 javadoc does not support assertions, generics, or other language features introduced after JDK 1.3.

Use the value of release corresponding to that used when compiling the code with javac.