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About nb-javac!

nb-javac is a backport of OpenJDK "javac", i.e., the Java compiler. nbjavac takes sources from the latest JDK and backports them to run on JDK8+. The nb-javac has long been part of NetBeans, providing a highly tuned Java compiler specifically for the Java editor i.e., parsing and lexing for features such as syntax coloring, code completion.

Prerequisite

  • Git
  • Ant 1.9.9 or above
  • JDK 17 to build
  • JDK 8 to test
  • Apache Maven to publish to Maven central

Building nb-javac jar files

Detailed description of the build process is available in a separate development documentation. Here are just the most straigtforward steps to get the final artifacts.

Obtain the code with the following command

$ git clone https://github.com/oracle/nb-javac.git

Get a specific version use the following command

$ git checkout <release_tag_name>

Run the below command to build nb-javac.

$ JAVA_HOME=/jdk-17/ ant -f ./make/langtools/netbeans/nb-javac clean jar

Two jars namely nb-javac-*-api.jar and nb-javac-*-impl.jar are going to appear at location ./make/langtools/netbeans/nb-javac/dist/. It is also possible to sanity test the generated Javac on JDK8:

$ JAVA_HOME=/jdk-8/ ant -f ./make/langtools/netbeans/nb-javac test

Generate ZIP with the source code of nb-javac

$ JAVA_HOME=/jdk-17/ ant -f ./make/langtools/netbeans/nb-javac zip-nb-javac-sources

Publishing to maven central / OSSRH

  1. Aquire an account for OSSRH from sonatype and get access to the target groupId See here: https://central.sonatype.org/pages/ossrh-guide.html

  2. Configure the maven installation so that the credentials are made available for the server with the id oss.sonatype.org

  3. Run

    JAVA_HOME=/jdk-17/ ant -f ./make/langtools/netbeans/nb-javac publish-to-ossrh-snapshots -Dmaven.groupId=your.grp.id

    to publish snapshot artifacts (https://oss.sonatype.org/content/repositories/snapshots/)

  4. Run

    JAVA_HOME=/jdk-17/ ant -f ./make/langtools/netbeans/nb-javac publish-to-maven-central -Dmaven.groupId=your.grp.id

    to stage the release, which will get promoted to maven central, after it has been manually released.

Installation/Usage

1. Copy jars by following commands

cp nb-javac/make/langtools/netbeans/nb-javac/dist/nb-javac-$ver-api.jar netbeans/java/libs.javacapi/external/nb-javac-$ver-api.jar
cp nb-javac/make/langtools/netbeans/nb-javac/dist/nb-javac-$ver-impl.jar netbeans/java/libs.javacimpl/external/nb-javac-$ver-impl.jar

2. Open Netbeans and activate Java SE by creating or opening a ant, maven or gradle then copy jars by these commands

cp nb-javac/make/langtools/netbeans/nb-javac/dist/nb-javac-$ver-impl.jar netbeans/nbbuild/testuserdir/modules/ext/nb-javac-$ver-impl.jar
cp nb-javac/make/langtools/netbeans/nb-javac/dist/nb-javac-$ver-api.jar netbeans/nbbuild/testuserdir/modules/ext/nb-javac-$ver-api.jar
touch netbeans/nbbuild/testuserdir/.lastmodified

Documentation

Help

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Contributing

See the Contributing Policy

Security

See the Security Policy