diff --git a/runtime/syntax/java.vim b/runtime/syntax/java.vim
index 44fbfa8..1b940eb 100644
--- a/runtime/syntax/java.vim
+++ b/runtime/syntax/java.vim
@@ -2,7 +2,7 @@
 " Language:	Java
 " Maintainer:	Claudio Fleiner <claudio@fleiner.com>
 " URL:          https://github.com/fleiner/vim/blob/master/runtime/syntax/java.vim
-" Last Change:	2023 Aug 13
+" Last Change:	2024 Feb 27
 
 " Please check :help java.vim for comments on some of the options available.
 
@@ -37,9 +37,17 @@
 syn keyword javaConstant	null
 syn keyword javaTypedef		this super
 syn keyword javaOperator	var new instanceof
+" Since the yield statement, which could take a parenthesised operand,
+" and _qualified_ yield methods get along within the switch block
+" (JLS-17, §3.8), it seems futile to make a region definition for this
+" block; instead look for the _yield_ word alone, and if found,
+" backtrack (arbitrarily) 80 bytes, at most, on the matched line and,
+" if necessary, on the line before that (h: \@<=), trying to match
+" neither a method reference nor a qualified method invocation.
+syn match   javaOperator	"\%(\%(::\|\.\)[[:space:]\n]*\)\@80<!\<yield\>"
 syn keyword javaType		boolean char byte short int long float double
 syn keyword javaType		void
-syn keyword javaStatement	return yield
+syn keyword javaStatement	return
 syn keyword javaStorageClass	static synchronized transient volatile final strictfp serializable
 syn keyword javaExceptions	throw try catch finally
 syn keyword javaAssert		assert
@@ -56,6 +64,7 @@
 syn match   javaUserLabelRef	"\k\+" contained
 syn match   javaVarArg		"\.\.\."
 syn keyword javaScopeDecl	public protected private abstract
+syn match   javaConceptKind	"\<default\>\%(\s*\%(:\|->\)\)\@!"
 
 function s:isModuleInfoDeclarationCurrentBuffer() abort
     return fnamemodify(bufname("%"), ":t") =~ '^module-info\%(\.class\>\)\@!'
@@ -142,15 +151,30 @@
   endif
 endif
 
-syn region  javaLabelRegion	transparent matchgroup=javaLabel start="\<case\>" matchgroup=NONE end=":\|->" contains=javaNumber,javaCharacter,javaString
-syn match   javaUserLabel	"^\s*[_$a-zA-Z][_$a-zA-Z0-9_]*\s*:"he=e-1 contains=javaLabel
-syn keyword javaLabel		default
+syn match   javaUserLabel	"^\s*\<\K\k*\>\%(\<default\>\)\@<!\s*:"he=e-1
+syn region  javaLabelRegion	transparent matchgroup=javaLabel start="\<case\>" matchgroup=NONE end=":\|->" contains=javaLabelCastType,javaLabelNumber,javaCharacter,javaString,javaConstant,@javaClasses,javaLabelDefault,javaLabelVarType,javaLabelWhenClause
+syn region  javaLabelRegion	transparent matchgroup=javaLabel start="\<default\>\%(\s*\%(:\|->\)\)\@=" matchgroup=NONE end=":\|->" oneline
+" Consider grouped _default_ _case_ labels, i.e.
+" case null, default ->
+" case null: default:
+syn keyword javaLabelDefault	contained default
+syn keyword javaLabelVarType	contained var
+syn keyword javaLabelCastType	contained char byte short int
+" Allow for the contingency of the enclosing region not being able to
+" _keep_ its _end_, e.g. case ':':.
+syn region  javaLabelWhenClause	contained transparent matchgroup=javaLabel start="\<when\>" matchgroup=NONE end=":"me=e-1 end="->"me=e-2 contains=TOP,javaExternal
+syn match   javaLabelNumber	contained "\<0\>[lL]\@!"
+syn match   javaLabelNumber	contained "\<\%(0\%([xX]\x\%(_*\x\)*\|_*\o\%(_*\o\)*\|[bB][01]\%(_*[01]\)*\)\|[1-9]\%(_*\d\)*\)\>[lL]\@!"
+hi def link javaLabelDefault	javaLabel
+hi def link javaLabelVarType	javaOperator
+hi def link javaLabelNumber	javaNumber
+hi def link javaLabelCastType	javaType
 
 " highlighting C++ keywords as errors removed, too many people find it
 " annoying.  Was: if !exists("java_allow_cpp_keywords")
 
 " The following cluster contains all java groups except the contained ones
-syn cluster javaTop add=javaExternal,javaError,javaBranch,javaLabelRegion,javaLabel,javaConditional,javaRepeat,javaBoolean,javaConstant,javaTypedef,javaOperator,javaType,javaStatement,javaStorageClass,javaAssert,javaExceptions,javaMethodDecl,javaClassDecl,javaScopeDecl,javaError2,javaUserLabel,javaLangObject,javaAnnotation,javaVarArg
+syn cluster javaTop add=javaExternal,javaError,javaBranch,javaLabelRegion,javaConditional,javaRepeat,javaBoolean,javaConstant,javaTypedef,javaOperator,javaType,javaStatement,javaStorageClass,javaAssert,javaExceptions,javaMethodDecl,javaClassDecl,javaScopeDecl,javaConceptKind,javaError2,javaUserLabel,javaLangObject,javaAnnotation,javaVarArg
 
 
 " Comments
@@ -231,9 +255,9 @@
     "	1. class names are always capitalized (ie: Button)
     "	2. method names are never capitalized (except constructors, of course)
     "syn region javaFuncDef start=+^\s\+\(\(public\|protected\|private\|static\|abstract\|final\|native\|synchronized\)\s\+\)*\(\(void\|boolean\|char\|byte\|short\|int\|long\|float\|double\|\([A-Za-z_][A-Za-z0-9_$]*\.\)*[A-Z][A-Za-z0-9_$]*\)\(<[^>]*>\)\=\(\[\]\)*\s\+[a-z][A-Za-z0-9_$]*\|[A-Z][A-Za-z0-9_$]*\)\s*([^0-9]+ end=+)+ contains=javaScopeDecl,javaType,javaStorageClass,javaComment,javaLineComment,@javaClasses
-    syn region javaFuncDef start=+^\s\+\(\(public\|protected\|private\|static\|abstract\|final\|native\|synchronized\)\s\+\)*\(<.*>\s\+\)\?\(\(void\|boolean\|char\|byte\|short\|int\|long\|float\|double\|\([A-Za-z_][A-Za-z0-9_$]*\.\)*[A-Z][A-Za-z0-9_$]*\)\(<[^(){}]*>\)\=\(\[\]\)*\s\+[a-z][A-Za-z0-9_$]*\|[A-Z][A-Za-z0-9_$]*\)\s*(+ end=+)+ contains=javaScopeDecl,javaType,javaStorageClass,javaComment,javaLineComment,@javaClasses,javaAnnotation
+    syn region javaFuncDef start=+^\s\+\%(\%(public\|protected\|private\|static\|\%(abstract\|default\)\|final\|native\|synchronized\)\s\+\)*\%(<.*>\s\+\)\?\%(\%(void\|boolean\|char\|byte\|short\|int\|long\|float\|double\|\%([A-Za-z_][A-Za-z0-9_$]*\.\)*[A-Z][A-Za-z0-9_$]*\)\%(<[^(){}]*>\)\=\%(\[\]\)*\s\+[a-z][A-Za-z0-9_$]*\|[A-Z][A-Za-z0-9_$]*\)\s*(+ end=+)+ contains=javaScopeDecl,javaType,javaStorageClass,javaComment,javaLineComment,@javaClasses,javaAnnotation
   endif
-  syn match javaLambdaDef "[a-zA-Z_][a-zA-Z0-9_]*\s*->"
+  syn match   javaLambdaDef "\<\K\k*\>\%(\<default\>\)\@<!\s*->"
   syn match  javaBraces  "[{}]"
   syn cluster javaTop add=javaFuncDef,javaBraces,javaLambdaDef
 endif
@@ -326,6 +350,7 @@
 hi def link javaMethodDecl		javaStorageClass
 hi def link javaClassDecl		javaStorageClass
 hi def link javaScopeDecl		javaStorageClass
+hi def link javaConceptKind		NonText
 
 hi def link javaBoolean		Boolean
 hi def link javaSpecial		Special
diff --git a/runtime/syntax/testdir/dumps/java_switch_00.dump b/runtime/syntax/testdir/dumps/java_switch_00.dump
new file mode 100644
index 0000000..95e0142
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_00.dump
@@ -0,0 +1,20 @@
+>c+0#00e0003#ffffff0|l|a|s@1| +0#0000000&|S|w|i|t|c|h|T|e|s|t|s| @2|/+0#0000e05&@1| |J|D|K| |2|1|+|.| +0#0000000&@43
+|{| @73
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+@75
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diff --git a/runtime/syntax/testdir/dumps/java_switch_01.dump b/runtime/syntax/testdir/dumps/java_switch_01.dump
new file mode 100644
index 0000000..0a76a87
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_01.dump
@@ -0,0 +1,20 @@
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+@12|d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@4|-|>| |{| |y+0#af5f00255&|i|e|l|d|(+0#0000000&|L|e|t@1|e|r|s|.|O|T|H|E|R|)|;| |}| @22
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diff --git a/runtime/syntax/testdir/dumps/java_switch_02.dump b/runtime/syntax/testdir/dumps/java_switch_02.dump
new file mode 100644
index 0000000..cf213ed
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_02.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@7|}|)|;| @63
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diff --git a/runtime/syntax/testdir/dumps/java_switch_03.dump b/runtime/syntax/testdir/dumps/java_switch_03.dump
new file mode 100644
index 0000000..7766af3
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_03.dump
@@ -0,0 +1,20 @@
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diff --git a/runtime/syntax/testdir/dumps/java_switch_04.dump b/runtime/syntax/testdir/dumps/java_switch_04.dump
new file mode 100644
index 0000000..38dfe40
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_04.dump
@@ -0,0 +1,20 @@
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+@8|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|b|)| |{| @54
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |0+0#e000002&|)+0#0000000&|:| @3|{| |e|c|h|o|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |0+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @20
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |1+0#e000002&|)+0#0000000&|:| @3|{| |e|c|h|o|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @20
+@8|d+0#af5f00255&|e|f|a|u|l|t|:+0#0000000&| @7|{| |e|c|h|o|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |-|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @23
+@8|}|;| @64
+@57|7|3|,|0|-|1| @7|6|5|%| 
diff --git a/runtime/syntax/testdir/dumps/java_switch_05.dump b/runtime/syntax/testdir/dumps/java_switch_05.dump
new file mode 100644
index 0000000..3a25667
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_05.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@7|}|;| @64
+@75
+@8|e|c|h|o|(|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|b|)| |{| @49
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |0+0#e000002&|)+0#0000000&| |-|>| |(|b+0#00e0003&|y|t|e|)+0#0000000&| |0+0#e000002&|;+0#0000000&| @34
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|b+0#00e0003&|y|t|e|)+0#0000000&| |1+0#e000002&|)+0#0000000&| |-|>| |(|b+0#00e0003&|y|t|e|)+0#0000000&| |1+0#e000002&|;+0#0000000&| @34
+@12>d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@4|-|>| |(|b+0#00e0003&|y|t|e|)+0#0000000&| |-|1+0#e000002&|;+0#0000000&| @37
+@8|}|)|;| @63
+@75
+@8|s+0#00e0003&|h|o|r|t| +0#0000000&|s|h| |=| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |2+0#e000002&|;+0#0000000&| @45
+@75
+@8|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|s|h|)| |{| @53
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |0+0#e000002&|)+0#0000000&|:| @2|{| |e|c|h|o|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |0+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @19
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|)+0#0000000&|:| @2|{| |e|c|h|o|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @19
+@8|d+0#af5f00255&|e|f|a|u|l|t|:+0#0000000&| @7|{| |e|c|h|o|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |-|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @22
+@8|}|;| @64
+@75
+@8|e|c|h|o|(|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|s|h|)| |{| @48
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |0+0#e000002&|)+0#0000000&| @3|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |0+0#e000002&|;+0#0000000&| @29
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|)+0#0000000&| @3|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|;+0#0000000&| @29
+@57|9|1|,|4|-|1|3| @6|8|2|%| 
diff --git a/runtime/syntax/testdir/dumps/java_switch_06.dump b/runtime/syntax/testdir/dumps/java_switch_06.dump
new file mode 100644
index 0000000..9e72cc7
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_06.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@11|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|)+0#0000000&| @3|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|;+0#0000000&| @29
+@12|d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@8|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |-|1+0#e000002&|;+0#0000000&| @32
+@8|}|)|;| @63
+@75
+@8|i+0#00e0003&|n|t| +0#0000000&|i| |=| |2+0#e000002&|;+0#0000000&| @56
+> @74
+@8|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|i|)| |{| @54
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|b|0|_@1|0@1|_@2|0@2|:+0#0000000&| |{| |e|c|h|o|(|0+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @27
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|x|0@2|_@2|0@1|_@1|1|:+0#0000000&| |{| |e|c|h|o|(|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @27
+@8|d+0#af5f00255&|e|f|a|u|l|t|:+0#0000000&| @7|{| |e|c|h|o|(|-|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @30
+@8|}|;| @64
+@75
+@8|e|c|h|o|(|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|i|)| |{| @49
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|_|0|_|0|_|0|_|0| +0#0000000&@1|-|>| |0+0#e000002&|;+0#0000000&| @41
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|1+0#e000002&| +0#0000000&@5|-|>| |1+0#e000002&|;+0#0000000&| @45
+@12|d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@4|-|>| |-|1+0#e000002&|;+0#0000000&| @44
+@8|}|)|;| @63
+@4|}| @69
+|}| @73
+@57|1|0|9|,|0|-|1| @6|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/java_switch_99.dump b/runtime/syntax/testdir/dumps/java_switch_99.dump
new file mode 100644
index 0000000..f275382
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/java_switch_99.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@11|c+0#af5f00255&|a|s|e| +0#0000000&|(@1|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|)+0#0000000&| @3|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |1+0#e000002&|;+0#0000000&| @29
+@12|d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@8|-|>| |(|s+0#00e0003&|h|o|r|t|)+0#0000000&| |-|1+0#e000002&|;+0#0000000&| @32
+@8|}|)|;| @63
+@75
+@8|i+0#00e0003&|n|t| +0#0000000&|i| |=| |2+0#e000002&|;+0#0000000&| @56
+@75
+@8|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|i|)| |{| @54
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|b|0|_@1|0@1|_@2|0@2|:+0#0000000&| |{| |e|c|h|o|(|0+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @27
+@8|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|x|0@2|_@2|0@1|_@1|1|:+0#0000000&| |{| |e|c|h|o|(|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @27
+@8|d+0#af5f00255&|e|f|a|u|l|t|:+0#0000000&| @7|{| |e|c|h|o|(|-|1+0#e000002&|)+0#0000000&|;| |b+0#af5f00255&|r|e|a|k|;+0#0000000&| |}| @30
+@8|}|;| @64
+@75
+@8|e|c|h|o|(|s+0#af5f00255&|w|i|t|c|h| +0#0000000&|(|i|)| |{| @49
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|0+0#e000002&|_|0|_|0|_|0|_|0| +0#0000000&@1|-|>| |0+0#e000002&|;+0#0000000&| @41
+@12|c+0#af5f00255&|a|s|e| +0#0000000&|1+0#e000002&| +0#0000000&@5|-|>| |1+0#e000002&|;+0#0000000&| @45
+@12|d+0#af5f00255&|e|f|a|u|l|t| +0#0000000&@4|-|>| |-|1+0#e000002&|;+0#0000000&| @44
+@8|}|)|;| @63
+@4|}| @69
+>}| @73
+@57|1|2@1|,|1| @8|B|o|t| 
diff --git a/runtime/syntax/testdir/ftplugin/java.vim b/runtime/syntax/testdir/ftplugin/java.vim
new file mode 100644
index 0000000..da198e1
--- /dev/null
+++ b/runtime/syntax/testdir/ftplugin/java.vim
@@ -0,0 +1,5 @@
+" The Java source file uses long lines with tabs
+" so use a smaller tabstop value, so that no
+" soft-wrapping occurs (which may cause the syntax
+" tests to miss some lines during scrolling)
+setl ts=4
diff --git a/runtime/syntax/testdir/input/java_switch.java b/runtime/syntax/testdir/input/java_switch.java
new file mode 100644
index 0000000..14b2e11
--- /dev/null
+++ b/runtime/syntax/testdir/input/java_switch.java
@@ -0,0 +1,122 @@
+class SwitchTests	// JDK 21+.
+{
+	static void echo(Object o) { System.out.println(o); }
+
+	static {
+		interface Yieldable<T>
+		{
+			T yield();
+			default Yieldable<T> default_()	{ return this; }
+			default Yieldable<T> when()	{ return this; }
+		}
+
+		// There are 80 bytes (\@80<!) between "::" and "yield;".
+		Yieldable<?> y = ((Yieldable<?>) () -> 0)::
+                                                                               yield;
+		((Yieldable<?>) () -> 0).when().default_().yield();
+
+		enum Letters { OTHER, ALPHA, BETA }
+
+		Letters when = Letters.OTHER;
+
+		switch (when) {
+		case ALPHA:	{ echo(Letters.ALPHA); break; }
+		case BETA:	{ echo(Letters.BETA); break; }
+		default:	{ echo(Letters.OTHER); }
+		}
+
+		echo(switch (when) {
+			case ALPHA	-> Letters.ALPHA;
+			case BETA	-> Letters.BETA;
+			default		-> { yield(Letters.OTHER); }
+		});
+
+		String yield = null;
+
+		switch (yield) {
+		case "A": case "B":	{ echo("A or B"); break; }
+		case ":":		{ echo("Colon"); break; }
+		case String str when !str.equals(""):
+					{ echo("<non-empty>"); break; }
+		case null: default:	{ echo("Other"); }
+		}
+
+		echo(switch (yield) {
+			case "A", "B"		-> { yield("A or B"); }
+			case "->"		-> "Arrow";
+			case String str when !str.equals("")
+						-> "<non-empty>";
+			case null, default	-> "Other";
+		});
+
+		Object o = new Object();
+
+		switch (o) {
+		case null:		{ echo("null"); break; }
+		case Letters[] ll:	{ echo("SwitchTests$1Letters[]"); break; }
+		default:		{ echo("java.lang.Object"); break; }
+		};
+
+		echo(switch (o) {
+			case null		-> "null";
+			case Letters[] ll	-> "SwitchTests$1Letters[]";
+			default			-> "java.lang.Object";
+		});
+
+		char ch = 'c';
+
+		switch (ch) {
+		case 'a':		{ echo('a'); break; }
+		case 'b':		{ echo('b'); break; }
+		default:		{ echo('\u0000'); break; }
+		};
+
+		echo(switch (ch) {
+			case 'a'	-> 'a';
+			case 'b'	-> 'b';
+			default		-> '\u0000';
+		});
+
+		byte b = (byte) 2;
+
+		switch (b) {
+		case ((byte) 0):	{ echo((byte) 0); break; }
+		case ((byte) 1):	{ echo((byte) 1); break; }
+		default:		{ echo((byte) -1); break; }
+		};
+
+		echo(switch (b) {
+			case ((byte) 0)	-> (byte) 0;
+			case ((byte) 1)	-> (byte) 1;
+			default		-> (byte) -1;
+		});
+
+		short sh = (short) 2;
+
+		switch (sh) {
+		case ((short) 0):	{ echo((short) 0); break; }
+		case ((short) 1):	{ echo((short) 1); break; }
+		default:		{ echo((short) -1); break; }
+		};
+
+		echo(switch (sh) {
+			case ((short) 0)	-> (short) 0;
+			case ((short) 1)	-> (short) 1;
+			default			-> (short) -1;
+		});
+
+		int i = 2;
+
+		switch (i) {
+		case 0b0__00___000:	{ echo(0); break; }
+		case 0x000___00__1:	{ echo(1); break; }
+		default:		{ echo(-1); break; }
+		};
+
+		echo(switch (i) {
+			case 0_0_0_0_0	-> 0;
+			case 1		-> 1;
+			default		-> -1;
+		});
+	}
+}