the 'gradlew -q javaToolChains' command is useful to see which JVMs gradle knows about.
On Tue, Sep 27, 2022 at 3:34 PM Uwe Schindler <u...@thetaphi.de> wrote: > > You just need to recreate Gradle properties, e.g. by deleting the old file. > > If you do not change anything Gradle will just work. On first build it will > autoprovision JDK 19 like any other dependency into the Gradle cache like > Maven artifacts and use it to compile the java 19 specific classes. The java > home should still point to java 17 or java 11. > > The environment var is just needed if you have JDK 19 at a non standard > location AND you don't want Gradle to download it automatically (Robert did > not want). > > Uwe > > P.S.: It will also check before downloading of you have a version of 19 > installed in the OS dependent Standard locations (Ubuntu,...) Or from windows > registry or MacOS installer. > > Am 27. September 2022 19:48:05 MESZ schrieb David Smiley <dsmi...@apache.org>: >> >> > If you do not want Gradle to auto-provision the Java 19 for compilation of >> > those Preview classes, pass environment variable >> > JAVA19_HOME=/path/to/jdk19 to your build! >> >> That seems inverted; maybe I misunderstand? If say we're working locally >> without Java 19 and don't want to bother it during dev, we should still have >> an env variable pointing to it? >> >> ~ David Smiley >> Apache Lucene/Solr Search Developer >> http://www.linkedin.com/in/davidwsmiley >> >> >> On Mon, Sep 26, 2022 at 9:57 AM Uwe Schindler <u...@thetaphi.de> wrote: >>> >>> Hi, >>> >>> with deleting the file, I meant the "gradle.properties" in the lucene >>> checkout. >>> >>> Uwe >>> >>> Am 26.09.2022 um 15:44 schrieb Uwe Schindler: >>> >>> Hey, >>> >>> after merge of Java 19 support to main, 9.x and to-be-released 9.4, there >>> is a small change needed in your gradle.properties file. In earlier version >>> we disabled auto-provisioning of JDK releases for compilation, but now it >>> is required. >>> >>> If your build hangs at :lucene:core:compileMain19Java saying that theres no >>> release of Java 19 available, please change your gradle.properties in your >>> home folder to enable this feature: >>> >>> org.gradle.java.installations.auto-download=true >>> >>> If you delete the file and let the build system regenerate it, all will >>> work out of box. So you have the choice: Delete the file to regenerate >>> defaults or modify above property! >>> >>> Please also not that depending on your build system, the classes in >>> lucene/core/src/java19 may not compile (e.g. in Eclipse). I will work on >>> this in the following weeks. For now just ignore the compilation unit or >>> delete it from your IDE config. I may do something automatically using our >>> IDE autoconfiguration. >>> >>> If you do not want Gradle to auto-provision the Java 19 for compilation of >>> those Preview classes, pass environment variable JAVA19_HOME=/path/to/jdk19 >>> to your build! >>> >>> To actually test the new code: Build the Lucene JAR and run the test suite >>> with RUNTIME_JAVA_HOME=/path/to/jdk19; alternatively compile your >>> application and pass "--enable-preview" to the Java command line! >>> >>> Thanks, >>> >>> Uwe >>> >>> -- >>> Uwe Schindler >>> Achterdiek 19, D-28357 Bremen >>> https://www.thetaphi.de >>> eMail: u...@thetaphi.de >>> >>> -- >>> Uwe Schindler >>> Achterdiek 19, D-28357 Bremen >>> https://www.thetaphi.de >>> eMail: u...@thetaphi.de > > -- > Uwe Schindler > Achterdiek 19, 28357 Bremen > https://www.thetaphi.de --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
