Also, make sure you are building the release-2.x branch. The master branch will build with Maven and targets Java 11 but it u ses some strange mechanics to get around the quirks of JPMS and this will make it a mess in your IDE. Once things get back to normal I plan to fix up the master branch using suggestions we got from the Maven team.
Ralph > On Dec 19, 2021, at 11:15 PM, Ralph Goers <[email protected]> wrote: > > You must run the build with Java 8 as the default JDK. You need a toolchain > for Java 9 or greater. I’d recommend Java 11. > > Ralph > >> On Dec 19, 2021, at 10:53 PM, Dan Kegel <[email protected]> wrote: >> >> Hi all! >> >> I'm trying to write an ide-free shell script to reproducibly build log4j from >> git on a fresh mac, following >> https://logging.apache.org/log4j/2.x/build.html and filling in the >> blanks. My current draft, >> http://kegel.com/install-log4j2-mac.sh.txt >> installs https://download.oracle.com/java/17/latest/jdk-17_macos-x64_bin.dmg >> and creates a toolchains.xml file: >> sed 's/java[789]/jdk-17.0.1.jdk/' < toolchains-sample-mac.xml > >> ~/.m2/toolchains.xml >> >> Not too surprisingly, that fails with >> >> [ERROR] Failed to execute goal >> org.apache.maven.plugins:maven-compiler-plugin:3.8.1:testCompile >> (default-testCompile) on project log4j-api: Compilation failure >> [ERROR] >> /Users/dank/logdemo/logging-log4j2/log4j-api/src/test/java/org/apache/logging/log4j/util/StackLocatorUtilTest.java:[25,18] >> error: cannot find symbol >> [ERROR] symbol: class Reflection >> [ERROR] location: package sun.reflect >> >> I dimly recall sun.reflect going away ( >> https://stackoverflow.com/questions/23808803/sun-reflect-reflection-getcallerclass-alternative >> says it was removed from jdk8), so perhaps the way my script sets up >> ~/.m2/toolchain.xml isn't sufficient. Is one supposed to add >> something to toolchain.xml to tell javac to target a different version >> of the jdk in each of the jdk7/8/9 sections? Or do I actually have to >> go dig up an ancient JDK 1.7 to make maven and log4j happy? >> >> https://blog.hcf.dev/article/2019-09-15-maven-toolchains-xml-script >> suggests the latter, ugh... >> >> Thanks, >> Dan Kegel >> > >
