Ok, so I used a docker image `adoptopenjdk/openjdk11:latest` as a builder, and still got version 52 classes.
pon., 18 lip 2022 o 09:51 Stephen Coy <s...@infomedia.com.au> napisał(a): > Hi Sergey, > > I’m willing to be corrected, but I think the use of a JAVA_HOME > environment variable was something that was started by and continues to be > perpetuated by Apache Tomcat. > > … or maybe Apache Ant, but modern versions of Ant do not need it either. > > It is not needed for modern releases of Apache Maven. > > Cheers, > > Steve C > > On 18 Jul 2022, at 4:12 pm, Sergey B. <sergey.bushma...@gmail.com> wrote: > > Hi Steve, > > Can you shed some light why do they need $JAVA_HOME at all if > everything is already in place? > > Regards, > - Sergey > > On Mon, Jul 18, 2022 at 4:31 AM Stephen Coy <s...@infomedia.com.au.invalid> > wrote: > >> Hi Szymon, >> >> There seems to be a common misconception that setting JAVA_HOME will set >> the version of Java that is used. >> >> This is not true, because in most environments you need to have a PATH >> environment variable set up that points at the version of Java that you >> want to use. >> >> You can set JAVA_HOME to anything at all and `java -version` will always >> return the same result. >> >> The way that you configure PATH varies from OS to OS: >> >> >> - MacOS use `/usr/libexec/java_home -v11` >> - On linux use `sudo alternatives --config java` >> - On Windows I have no idea >> >> >> When you do this the `mvn` command will compute the value of JAVA_HOME >> for its own use; there is no need to explicitly set it yourself (unless >> other Java applications that you use insist u[on it). >> >> >> Cheers, >> >> Steve C >> >> On 16 Jul 2022, at 7:24 am, Szymon Kuryło <szymonkur...@gmail.com> wrote: >> >> Hello, >> >> I'm trying to build a Java 11 Spark distro using the >> dev/make-distribution.sh script. >> I have set JAVA_HOME to point to JDK11 location, I've also set the >> java.version property in pom.xml to 11, effectively also setting >> `maven.compile.source` and `maven.compile.target`. >> When inspecting classes from the `dist` directory with `javap -v`, I find >> that the class major version is 52, which is specific to JDK8. Am I missing >> something? Is there a reliable way to set the JDK used in the build process? >> >> Thanks, >> Szymon K. >> >> >> This email contains confidential information of and is the copyright of >> Infomedia. It must not be forwarded, amended or disclosed without consent >> of the sender. If you received this message by mistake, please advise the >> sender and delete all copies. Security of transmission on the internet >> cannot be guaranteed, could be infected, intercepted, or corrupted and you >> should ensure you have suitable antivirus protection in place. By sending >> us your or any third party personal details, you consent to (or confirm you >> have obtained consent from such third parties) to Infomedia’s privacy >> policy. http://www.infomedia.com.au/privacy-policy/ >> > >
