On 2019-12-04 19:29, Joe Darcy wrote:
Hello,

First on the build front, the -source/-target used in the bootstrap build of langtools was stuck at 9; in the change I'm proposing to update it to 13, the minimum boot JDK:

--- old/make/autoconf/boot-jdk.m4    2019-12-04 19:16:42.209000999 -0800
+++ new/make/autoconf/boot-jdk.m4    2019-12-04 19:16:41.925000999 -0800
@@ -345,7 +345,7 @@

   # When compiling code to be executed by the Boot JDK, force compatibility with the
   # oldest supported bootjdk.
-  BOOT_JDK_SOURCETARGET="-source 9 -target 9"
+  BOOT_JDK_SOURCETARGET="-source 13 -target 13"
   AC_SUBST(BOOT_JDK_SOURCETARGET)

I had missed this configuration. Ideally I want all the versions that need updating for each new release collected into the version-numbers file, or even better, be derived from existing numbers in there. Would it be ok to just derive this number from the list of valid bootjdk versions?

/Erik

AC_SUBST(JAVAC_FLAGS)

This should get added to the list of files updated when the boot JDK is revved.

On the javax.lang.model front, with the changes for records pushed into JDK 14 there is now a ElementScanner14 class and I think it is time to address

    JDK-8224630: ElementScannerN, N > 9 should scan type parameters
    http://cr.openjdk.java.net/~darcy/8224630.0/
    CSR: https://bugs.openjdk.java.net/browse/JDK-8235371

As the bug title implies, the existing scanner classes don't touch type parameters, which is arguably a bug. The scanners mostly touch enclosed elements, but they do also touch method/constructor parameters which are not considered to be enclosed elements.

In its current form, the webrev relies on the test previously added for RoundEnvironment. However, I acknowledge it would be possible to add tests for this particular change.

Thanks,

-Joe

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