Java 17 leads to Unsupported class file major version 61 on Debian 11

[gomanuke]

Hi. guys.
Would You clarify what is wrong with config of

java -version
java version "17.0.9" 2023-10-17 LTS
Java(TM) SE Runtime Environment (build 17.0.9+11-LTS-201)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.9+11-LTS-201, mixed mode, sharing)

that leads to

 ./gradlew
Starting a Gradle Daemon (subsequent builds will be faster)

FAILURE: Build failed with an exception.

* Where:
Build file '/root/JasperReportsIntegration/build.gradle'

* What went wrong:
Could not compile build file '/root/JasperReportsIntegration/build.gradle'.
> startup failed:
  General error during semantic analysis: Unsupported class file major version 61

[daust]

What are you trying to achieve?

gradle is only used for building the software, but not for using it.
Which version of JRI are you using?

[gomanuke]

Exactly. I've been trying to build and get a jri.war (i hoped)
I've using the latest what git got from main branch. I mean i use git client to get the latest JRI.
So a just make git pull and run ./gradlew to get a jri.war as i said.