runtime(java): Make changes for JDK 24 in syntax script

- "Demote" SecurityManager from the list of java.lang class
  types to javaLangDeprecated.
- Reintroduce supported syntax-preview-feature numbers 455
  and 476 as _new numbers_ 488 and 494, respectively.

References:
- https://openjdk.org/jeps/486 (Permanently Disable the Security Manager)
- https://openjdk.org/jeps/488 (Primitive Types in Patterns etc.)
- https://openjdk.org/jeps/494 (Module Import Declarations)

closes: #16977

Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/syntax.txt

@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 9.1.  Last change: 2025 Mar 26
+*syntax.txt*	For Vim version 9.1.  Last change: 2025 Mar 27
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2202,12 +2202,12 @@ 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 withdrawn from this effort.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 = [455, 476]
+	:let g:java_syntax_previews = [488, 494]
 
 The supported JEP numbers are to be drawn from this table:
 	`430`: String Templates [JDK 21]
-	`455`: Primitive types in Patterns, instanceof, and switch
+	`488`: Primitive types in Patterns, instanceof, and switch
-	`476`: Module Import Declarations
+	`494`: Module Import Declarations
 
 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

runtime/syntax/java.vim

@@ -3,7 +3,7 @@
 " Maintainer:		Aliaksei Budavei <0x000c70 AT gmail DOT com>
 " Former Maintainer:	Claudio Fleiner <claudio@fleiner.com>
 " Repository:		https://github.com/zzzyxwvut/java-vim.git
-" Last Change:		2025 Jan 02
+" Last Change:		2025 Mar 26
 
 " Please check ":help java.vim" for comments on some of the options
 " available.
@@ -46,8 +46,10 @@ function! s:ff.RightConstant(x, y) abort
   return a:y
 endfunction
 
-function! s:ff.IsRequestedPreviewFeature(n) abort
+function! s:ff.IsAnyRequestedPreviewFeatureOf(ns) abort
-  return exists("g:java_syntax_previews") && index(g:java_syntax_previews, a:n) + 1
+  return exists("g:java_syntax_previews") &&
+    \ !empty(filter(a:ns, printf('index(%s, v:val) + 1',
+			    \ string(g:java_syntax_previews))))
 endfunction
 
 if !exists("*s:ReportOnce")
@@ -108,7 +110,7 @@ syn keyword javaTypedef		this super
 syn keyword javaOperator	new instanceof
 syn match   javaOperator	"\<var\>\%(\s*(\)\@!"
 
-if s:ff.IsRequestedPreviewFeature(476)
+if s:ff.IsAnyRequestedPreviewFeatureOf([476, 494])
   " Module imports can be used in any source file.
   syn match   javaExternal	"\<import\s\+module\>" contains=javaModuleImport
   syn keyword javaModuleImport	contained module
@@ -262,8 +264,12 @@ if exists("g:java_highlight_all") || exists("g:java_highlight_java") || exists("
     syn keyword javaC_JavaLang Class InheritableThreadLocal ThreadLocal Enum ClassValue
   endif
 
-  " As of JDK 21, java.lang.Compiler is no more (deprecated in JDK 9).
+  " As of JDK 24, SecurityManager is rendered non-functional
-  syn keyword javaLangDeprecated Compiler
+  "	(JDK-8338625).
+  "	(Note that SecurityException and RuntimePermission are still
+  "	not deprecated.)
+  " As of JDK 21, Compiler is no more (JDK-8205129).
+  syn keyword javaLangDeprecated Compiler SecurityManager
   syn cluster javaClasses add=javaC_JavaLang
   hi def link javaC_JavaLang javaC_Java
   syn keyword javaE_JavaLang AbstractMethodError ClassCircularityError ClassFormatError Error IllegalAccessError IncompatibleClassChangeError InstantiationError InternalError LinkageError NoClassDefFoundError NoSuchFieldError NoSuchMethodError OutOfMemoryError StackOverflowError ThreadDeath UnknownError UnsatisfiedLinkError VerifyError VirtualMachineError ExceptionInInitializerError UnsupportedClassVersionError AssertionError BootstrapMethodError
@@ -311,7 +317,7 @@ endif
 
 exec 'syn match javaUserLabel "^\s*\<\K\k*\>\%(\<default\>\)\@' . s:ff.Peek('7', '') . '<!\s*::\@!"he=e-1'
 
-if s:ff.IsRequestedPreviewFeature(455)
+if s:ff.IsAnyRequestedPreviewFeatureOf([455, 488])
   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
@@ -609,7 +615,7 @@ syn region  javaString		start=+"+ end=+"+ end=+$+ contains=javaSpecialChar,javaS
 syn region  javaString		start=+"""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaSpecialChar,javaSpecialError,javaTextBlockError,@Spell
 syn match   javaTextBlockError	+"""\s*"""+
 
-if s:ff.IsRequestedPreviewFeature(430)
+if s:ff.IsAnyRequestedPreviewFeatureOf([430])
   syn region javaStrTemplEmbExp	contained matchgroup=javaStrTempl start="\\{" end="}" contains=TOP
   exec 'syn region javaStrTempl start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="+ end=+"+ contains=javaStrTemplEmbExp,javaSpecialChar,javaSpecialError,@Spell'
   exec 'syn region javaStrTempl start=+\%(\.[[:space:]\n]*\)\@' . s:ff.Peek('80', '') . '<="""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaStrTemplEmbExp,javaSpecialChar,javaSpecialError,javaTextBlockError,@Spell'
@@ -688,7 +694,7 @@ if exists("g:java_highlight_debug")
   syn region  javaDebugString		contained start=+"+ end=+"+ contains=javaDebugSpecial
   syn region  javaDebugString		contained start=+"""[ \t\x0c\r]*$+hs=e+1 end=+"""+he=s-1 contains=javaDebugSpecial,javaDebugTextBlockError
 
-  if s:ff.IsRequestedPreviewFeature(430)
+  if s:ff.IsAnyRequestedPreviewFeatureOf([430])
     " The highlight groups of java{StrTempl,Debug{,Paren,StrTempl}}\,
     " share one colour by default. Do not conflate unrelated parens.
     syn region javaDebugStrTemplEmbExp	contained matchgroup=javaDebugStrTempl start="\\{" end="}" contains=javaComment,javaLineComment,javaDebug\%(Paren\)\@!.*

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|]| +0#0000000&@22
+>/+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|]| +0#0000000&@17
 @75
 @75
 @75

runtime/syntax/testdir/input/java_previews_455.java

@@ -1,4 +1,4 @@
-// VIM_TEST_SETUP let g:java_syntax_previews = [455]
+// VIM_TEST_SETUP let g:java_syntax_previews = [455, 488]
 
 
 

runtime/syntax/testdir/input/setup/java_module_info.vim

@@ -29,4 +29,4 @@ autocmd_add([{
     once:	true,
 }])
 
-g:java_syntax_previews = [476]
+g:java_syntax_previews = [476, 494]