Hi all, Clearly JDK 8 works for building NetBeans.
However, we also have this flag: -Dpermit.jdk9.builds=true For which JDKs can that be used and what do we need to do to avoid needing that. Here I get the impression that either JDK 8 or 11 is needed: http://netbeans.apache.org/download/dev/index.html I suppose because these two are LTS. With that flag, I was able to build 12.1 with JDK 11.0.6: openjdk version "11.0.6" 2020-01-14 LTS OpenJDK Runtime Environment Zulu11.37+17-CA (build 11.0.6+10-LTS) OpenJDK 64-Bit Server VM Zulu11.37+17-CA (build 11.0.6+10-LTS, mixed mode) But not with JDK 14: openjdk version "14" 2020-03-17 OpenJDK Runtime Environment Zulu14.27+1-CA (build 14+36) OpenJDK 64-Bit Server VM Zulu14.27+1-CA (build 14+36, mixed mode, sharing) Also not with JDK 13: openjdk version "13.0.4" 2020-07-14 OpenJDK Runtime Environment Zulu13.33+25-CA (build 13.0.4+8-MTS) OpenJDK 64-Bit Server VM Zulu13.33+25-CA (build 13.0.4+8-MTS, mixed mode, sharing) We can of course simply say that one can build NetBeans with an LTS release of the JDK from 8 onwards, which would currently be 8 and 11. I don't know the reason, maybe it is this: -do-compile: [nb-javac] Compiling 2 source files to /Users/geertjanwielenga/Downloads/netbeans-12-1/platform/openide.util.ui.svg/build/classes [repeat] warning: [options] bootstrap class path not set in conjunction with -source 6 [repeat] error: Source option 6 is no longer supported. Use 7 or later. [repeat] warning: [options] target value 7 is obsolete and will be removed in a future release [repeat] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options. Anyway, thoughts welcome, though not super urgent since the two LTS JDKs work fine. Gj
