Using JDK from /usr/lib/jvm/java-21-openjdk to build JabRef.
Downloading https://services.gradle.org/distributions/gradle-8.3-bin.zip
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Welcome to Gradle 8.3!

Here are the highlights of this release:
 - Faster Java compilation
 - Reduced memory usage
 - Support for running on Java 20

For more details see https://docs.gradle.org/8.3/release-notes.html

To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/8.3/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 

> Configure project :buildSrc
Project : => 'org.jabref' Java module

> Task :buildSrc:compileJava
> Task :buildSrc:compileGroovy
> Task :buildSrc:compileModuleInfoJava
> Task :buildSrc:processResources NO-SOURCE
> Task :buildSrc:classes
> Task :buildSrc:jar

> Configure project :
Project : => 'org.jabref' Java module

> Task :generateBstGrammarSource
> Task :generateCitaviSource
> Task :generateSearchGrammarSource
> Task :generateSource
> Task :compileJava
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

> Task :processResources
> Task :classes
> Task :jar
> Task :startScripts
> Task :distTar
> Task :distZip
> Task :assemble

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.3/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD SUCCESSFUL in 4m
13 actionable tasks: 13 executed