Commit: runtime(java): Make changes for JDK 26

[Christian Brabandt]

runtime(java): Make changes for JDK 26

Commit: https://github.com/vim/vim/commit/c9eaff0a8ac7d8c38878361b53343348d93afff5
Author: Aliaksei Budavei <0x00...@gmail.com>
Date: Mon Mar 23 19:54:00 2026 +0000

runtime(java): Make changes for JDK 26

Reintroduce supported syntax-preview-feature numbers 455,
488, and 507 as _a new number_ 530.

Reference:
https://openjdk.org/jeps/530 (Primitive Types in Patterns etc.)

closes: #19793

Signed-off-by: Aliaksei Budavei <0x00...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 16756c22f..c771a400a 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 9.2. Last change: 2026 Feb 14
+*syntax.txt* For Vim version 9.2. Last change: 2026 Mar 22


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -2285,11 +2285,11 @@ cycles for such a feature to become either integrated into the platform or
withdrawn from this effort. To cater for early adopters, there is optional
support in Vim for syntax related preview features that are implemented. You
can request it by specifying a list of preview feature numbers as follows: >
- :let g:java_syntax_previews = [507]
+ :let g:java_syntax_previews = [530]

The supported JEP numbers are to be drawn from this table:
`430`: String Templates [JDK 21]
- `507`: Primitive types in Patterns, instanceof, and switch
+ `530`: Primitive types in Patterns, instanceof, and switch

Note that as soon as the particular preview feature will have been integrated
into the Java platform, its entry will be removed from the table and related
diff --git a/runtime/syntax/java.vim b/runtime/syntax/java.vim
index bc874904f..ee2b06ffd 100644
--- a/runtime/syntax/java.vim
+++ b/runtime/syntax/java.vim
@@ -3,7 +3,7 @@
" Maintainer: Aliaksei Budavei <0x000c70 AT gmail DOT com>
" Former Maintainer: Claudio Fleiner <cla...@fleiner.com>
" Repository: https://github.com/zzzyxwvut/java-vim.git
-" Last Change: 2026 Feb 06
+" Last Change: 2026 Mar 22

" Please check ":help java.vim" for comments on some of the options
" available.
@@ -381,7 +381,7 @@ endif

exec 'syn match javaUserLabel "^\s*\<\K\k*\>\%(\<default\>\)\@' . s:ff.Peek('7', '') . '<!\s*::\@!"he=e-1'

-if s:ff.IsAnyRequestedPreviewFeatureOf([455, 488, 507])
+if s:ff.IsAnyRequestedPreviewFeatureOf([455, 488, 507, 530])
syn region javaLabelRegion transparent matchgroup=javaLabel start="\<case\>" matchgroup=NONE end=":\|->" contains=javaBoolean,javaNumber,javaCharacter,javaString,javaConstant,@javaClasses,javaGenerics,javaType,javaLabelDefault,javaLabelVarType,javaLabelWhenClause
else
syn region javaLabelRegion transparent matchgroup=javaLabel start="\<case\>" matchgroup=NONE end=":\|->" contains=javaLabelCastType,javaLabelNumber,javaCharacter,javaString,javaConstant,@javaClasses,javaGenerics,javaLabelDefault,javaLabelVarType,javaLabelWhenClause
diff --git a/runtime/syntax/testdir/dumps/java_previews_455_00.dump b/runtime/syntax/testdir/dumps/java_previews_455_00.dump
index 3a61cf84c..1612b7926 100644
--- a/runtime/syntax/testdir/dumps/java_previews_455_00.dump
+++ b/runtime/syntax/testdir/dumps/java_previews_455_00.dump
@@ -1,4 +1,4 @@
->/+0#0000e05#ffffff0@1| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|j|a|v|a|_|s|y|n|t|a|x|_|p|r|e|v|i|e|w|s| |=| |[|4|5@1|,| |4|8@1|,| |5|0|7|]| +0#0000000&@12
+>/+0#0000e05#ffffff0@1| |V|I|M|_|T|E|S|T|_|S|E|T|U|P| |l|e|t| |g|:|j|a|v|a|_|s|y|n|t|a|x|_|p|r|e|v|i|e|w|s| |=| |[|4|5@1|,| |4|8@1|,| |5|0|7|,| |5|3|0|]| +0#0000000&@7
@75
@75
@75
diff --git a/runtime/syntax/testdir/input/java_previews_455.java b/runtime/syntax/testdir/input/java_previews_455.java
index bdffa23f7..69f379843 100644
--- a/runtime/syntax/testdir/input/java_previews_455.java
+++ b/runtime/syntax/testdir/input/java_previews_455.java
@@ -1,4 +1,4 @@
-// VIM_TEST_SETUP let g:java_syntax_previews = [455, 488, 507]
+// VIM_TEST_SETUP let g:java_syntax_previews = [455, 488, 507, 530]