The langtools modules are not intended nor required to be upgradeable. JDK 9 javap will only work with JDK 9 java.compiler. When IDE upgrades java.compiler to JDK 10 and runs on JDK 9, it would have to deliver a Java compiler implementing JDK 10 JavaCompiler API and could also implement the new version of javap. One thing to mention is that javap is java.util.spi.ToolProvider and it could provide a ToolProvider of this new version of javap.
Mandy FYI. The list of modules that directly and indirectly require java.compiler: $ jdeps -I --require java.compiler Inverse transitive dependences on [java.compiler] java.compiler <- jdk.jshell java.compiler <- jdk.scripting.nashorn.shell java.compiler <- jdk.xml.ws java.compiler <- java.se <- java.se.ee java.compiler <- java.xml.bind <- java.se.ee java.compiler <- java.xml.bind <- jdk.xml.bind java.compiler <- java.xml.bind <- jdk.xml.ws java.compiler <- jdk.compiler <- jdk.javadoc java.compiler <- jdk.compiler <- jdk.jdeps java.compiler <- jdk.compiler <- jdk.jshell java.compiler <- jdk.compiler <- jdk.rmic java.compiler <- jdk.compiler <- jdk.xml.bind java.compiler <- jdk.javadoc <- jdk.rmic java.compiler <- jdk.jdeps <- jdk.packager java.compiler <- jdk.xml.bind <- jdk.xml.ws java.compiler <- java.xml.bind <- java.xml.ws <- java.se.ee java.compiler <- java.xml.bind <- java.xml.ws <- jdk.xml.ws java.compiler <- jdk.jdeps <- jdk.jlink <- jdk.packager > On Jun 13, 2017, at 2:11 AM, Remi Forax <fo...@univ-mlv.fr> wrote: > > My concern is that by example javac and javap need to be aligned and by > making a module upgradeable you can not make only some packages upgradeable. > So it seems logical that if java.compiler is upgradeable the other modules of > langtools are upgradable too. > > Rémi > > > On June 13, 2017 10:26:18 AM GMT+02:00, Alan Bateman > <alan.bate...@oracle.com> wrote: >> On 13/06/2017 08:42, Remi Forax wrote: >>> Hi Mandy, >>> why only java.compiler is upgradable and not all modules defined in >> langtools ? >>> >> java.compiler needs to be upgradeable because JSR 199 and JSR 269 are >> standalone technologies. >> >> The other modules in the langtools repository are JDK-specific. They >> aren't meant to be upgraded via the upgrade module path. If someone is >> forking the code to create their own version of jdk.compiler (for >> example) then they can re-package or load it into a child layer. >> >> -Alan > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity.
