Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Label in Java instance or static initializer block triggers Scopes$NoScope error #1313

Open
wandernauta opened this issue Feb 12, 2025 · 0 comments
Open

Label in Java instance or static initializer block triggers Scopes$NoScope error #1313

wandernauta opened this issue Feb 12, 2025 · 0 comments
Labels
A-Bug F-Java Frontend: Java Fuzzing Found by fuzzing

Comments

@wandernauta
Copy link
Contributor

wandernauta commented Feb 12, 2025 •
edited
Loading

The following Java class, which consists of only an instance initializer block containing a label, triggers a Scopes$NoScope error:

class Z {
    { m:; }
}

vct.col.util.Scopes$NoScope: There is no scope to place a declaration of kind LabelDecl in.

The same error occurs with static initializer blocks. Adding a constructor to the class does not resolve the issue.

The issue is similar to #1263.

[INFO] Done: VerCors (at 16:24:59, duration: 00:00:02)
vct.col.util.Scopes$NoScope: There is no scope to place a declaration of kind LabelDecl in.
	at vct.col.util.Scopes.succeedOnly(Scopes.scala:112)
	at vct.col.ast.AllScopes.anySucceedOnly(AllScopes.scala:92)
	at vct.col.ast.AllScopes.anySucceed(AllScopes.scala:138)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:7)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:7)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:289)
	at vct.col.util.Scopes.$anonfun$dispatch$1(Scopes.scala:125)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.collect(Scopes.scala:92)
	at vct.col.util.Scopes.dispatch(Scopes.scala:125)
	at vct.col.ast.ops.rewrite.LabelRewrite.rewrite(LabelRewrite.scala:6)
	at vct.col.ast.ops.rewrite.LabelRewrite.rewrite$(LabelRewrite.scala:4)
	at vct.col.ast.Label.rewrite(Node.scala:369)
	at vct.col.ast.ops.rewrite.LabelRewrite.rewriteDefault(LabelRewrite.scala:3)
	at vct.col.ast.ops.rewrite.LabelRewrite.rewriteDefault$(LabelRewrite.scala:3)
	at vct.col.ast.Label.rewriteDefault(Node.scala:369)
	at vct.col.ast.Label.rewriteDefault(Node.scala:369)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:116)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:116)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:306)
	at vct.col.ast.ops.rewrite.BlockRewrite.$anonfun$rewrite$1(BlockRewrite.scala:6)
	at scala.collection.immutable.List.map(List.scala:246)
	at scala.collection.immutable.List.map(List.scala:79)
	at vct.col.ast.ops.rewrite.BlockRewrite.rewrite(BlockRewrite.scala:6)
	at vct.col.ast.ops.rewrite.BlockRewrite.rewrite$(BlockRewrite.scala:4)
	at vct.col.ast.Block.rewrite(Node.scala:537)
	at vct.col.ast.ops.rewrite.BlockRewrite.rewriteDefault(BlockRewrite.scala:3)
	at vct.col.ast.ops.rewrite.BlockRewrite.rewriteDefault$(BlockRewrite.scala:3)
	at vct.col.ast.Block.rewriteDefault(Node.scala:537)
	at vct.col.ast.Block.rewriteDefault(Node.scala:537)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:116)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:116)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:306)
	at vct.col.ast.ops.rewrite.ScopeRewrite.$anonfun$rewrite$5(ScopeRewrite.scala:14)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ScopeRewrite.$anonfun$rewrite$4(ScopeRewrite.scala:9)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ScopeRewrite.$anonfun$rewrite$3(ScopeRewrite.scala:8)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ScopeRewrite.$anonfun$rewrite$2(ScopeRewrite.scala:7)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ScopeRewrite.$anonfun$rewrite$1(ScopeRewrite.scala:6)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ScopeRewrite.rewrite(ScopeRewrite.scala:5)
	at vct.col.ast.ops.rewrite.ScopeRewrite.rewrite$(ScopeRewrite.scala:4)
	at vct.col.ast.Scope.rewrite(Node.scala:546)
	at vct.col.ast.ops.rewrite.ScopeRewrite.rewriteDefault(ScopeRewrite.scala:3)
	at vct.col.ast.ops.rewrite.ScopeRewrite.rewriteDefault$(ScopeRewrite.scala:3)
	at vct.col.ast.Scope.rewriteDefault(Node.scala:546)
	at vct.col.ast.Scope.rewriteDefault(Node.scala:546)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:116)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:116)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:306)
	at vct.col.ast.ops.rewrite.JavaSharedInitializationRewrite.rewrite(JavaSharedInitializationRewrite.scala:6)
	at vct.col.ast.ops.rewrite.JavaSharedInitializationRewrite.rewrite$(JavaSharedInitializationRewrite.scala:4)
	at vct.col.ast.JavaSharedInitialization.rewrite(Node.scala:3208)
	at vct.col.ast.ops.rewrite.JavaSharedInitializationRewrite.rewriteDefault(JavaSharedInitializationRewrite.scala:3)
	at vct.col.ast.ops.rewrite.JavaSharedInitializationRewrite.rewriteDefault$(JavaSharedInitializationRewrite.scala:3)
	at vct.col.ast.JavaSharedInitialization.rewriteDefault(Node.scala:3208)
	at vct.col.ast.JavaSharedInitialization.rewriteDefault(Node.scala:3208)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:7)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:7)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:289)
	at vct.col.util.Scopes.$anonfun$dispatch$3(Scopes.scala:137)
	at vct.col.util.Scopes.$anonfun$dispatch$3$adapted(Scopes.scala:136)
	at scala.collection.immutable.List.foreach(List.scala:333)
	at vct.col.util.Scopes.$anonfun$dispatch$2(Scopes.scala:136)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.collect(Scopes.scala:92)
	at vct.col.util.Scopes.dispatch(Scopes.scala:136)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.$anonfun$rewrite$2(JavaClassRewrite.scala:26)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.$anonfun$rewrite$1(JavaClassRewrite.scala:6)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.rewrite(JavaClassRewrite.scala:5)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.rewrite$(JavaClassRewrite.scala:4)
	at vct.col.ast.JavaClass.rewrite(Node.scala:3178)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.rewriteDefault(JavaClassRewrite.scala:3)
	at vct.col.ast.ops.rewrite.JavaClassRewrite.rewriteDefault$(JavaClassRewrite.scala:3)
	at vct.col.ast.JavaClass.rewriteDefault(Node.scala:3178)
	at vct.col.ast.JavaClass.rewriteDefault(Node.scala:3178)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:7)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:7)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:288)
	at vct.col.util.Scopes.$anonfun$dispatch$3(Scopes.scala:137)
	at vct.col.util.Scopes.$anonfun$dispatch$3$adapted(Scopes.scala:136)
	at scala.collection.immutable.List.foreach(List.scala:333)
	at vct.col.util.Scopes.$anonfun$dispatch$2(Scopes.scala:136)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.collect(Scopes.scala:92)
	at vct.col.util.Scopes.dispatch(Scopes.scala:136)
	at vct.col.ast.ops.rewrite.JavaNamespaceRewrite.rewrite(JavaNamespaceRewrite.scala:12)
	at vct.col.ast.ops.rewrite.JavaNamespaceRewrite.rewrite$(JavaNamespaceRewrite.scala:4)
	at vct.col.ast.JavaNamespace.rewrite(Node.scala:3163)
	at vct.col.ast.ops.rewrite.JavaNamespaceRewrite.rewriteDefault(JavaNamespaceRewrite.scala:3)
	at vct.col.ast.ops.rewrite.JavaNamespaceRewrite.rewriteDefault$(JavaNamespaceRewrite.scala:3)
	at vct.col.ast.JavaNamespace.rewriteDefault(Node.scala:3163)
	at vct.col.ast.JavaNamespace.rewriteDefault(Node.scala:3163)
	at vct.col.ast.AbstractRewriter.rewriteDefault(AbstractRewriter.scala:7)
	at vct.col.ast.AbstractRewriter.rewriteDefault$(AbstractRewriter.scala:7)
	at vct.col.rewrite.NonLatchingRewriter.rewriteDefault(NonLatchingRewriter.scala:8)
	at vct.rewrite.lang.LangTypesToCol.dispatch(LangTypesToCol.scala:289)
	at vct.col.util.Scopes.$anonfun$dispatch$3(Scopes.scala:137)
	at vct.col.util.Scopes.$anonfun$dispatch$3$adapted(Scopes.scala:136)
	at scala.collection.immutable.List.foreach(List.scala:333)
	at vct.col.util.Scopes.$anonfun$dispatch$2(Scopes.scala:136)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.collect(Scopes.scala:92)
	at vct.col.util.Scopes.dispatch(Scopes.scala:136)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$7(ProgramRewrite.scala:13)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$6(ProgramRewrite.scala:11)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$5(ProgramRewrite.scala:10)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$4(ProgramRewrite.scala:9)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$3(ProgramRewrite.scala:8)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$2(ProgramRewrite.scala:7)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.$anonfun$rewrite$1(ProgramRewrite.scala:6)
	at hre.util.ScopedStack.having(ScopedStack.scala:35)
	at vct.col.util.Scopes.scope(Scopes.scala:84)
	at vct.col.ast.ops.rewrite.ProgramRewrite.rewrite(ProgramRewrite.scala:5)
	at vct.col.ast.ops.rewrite.ProgramRewrite.rewrite$(ProgramRewrite.scala:4)
	at vct.col.ast.Program.rewrite(Node.scala:111)
	at vct.col.ast.ops.rewrite.ProgramRewrite.rewriteDefault(ProgramRewrite.scala:3)
	at vct.col.ast.ops.rewrite.ProgramRewrite.rewriteDefault$(ProgramRewrite.scala:3)
	at vct.col.ast.Program.rewriteDefault(Node.scala:111)
	at vct.col.rewrite.NonLatchingRewriter.$anonfun$dispatch$1(NonLatchingRewriter.scala:12)
	at vct.result.VerificationError$.withContext(VerificationError.scala:61)
	at vct.col.rewrite.NonLatchingRewriter.dispatch(NonLatchingRewriter.scala:12)
	at vct.main.stages.Resolution.run(Resolution.scala:147)
	at vct.main.stages.Resolution.run(Resolution.scala:120)
	at hre.stages.Stages.$anonfun$run$3(Stages.scala:104)
	at hre.stages.Stages.$anonfun$run$3$adapted(Stages.scala:101)
	at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:576)
	at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:574)
	at scala.collection.AbstractIterable.foreach(Iterable.scala:933)
	at scala.collection.IterableOps$WithFilter.foreach(Iterable.scala:903)
	at hre.stages.Stages.$anonfun$run$1(Stages.scala:101)
	at hre.progress.task.NameSequenceTask.scope(NameSequenceTask.scala:16)
	at hre.progress.Progress$.stages(Progress.scala:47)
	at hre.stages.Stages.run(Stages.scala:98)
	at hre.stages.Stages.run$(Stages.scala:95)
	at hre.stages.StagesPair.run(Stages.scala:145)
	at vct.main.modes.Verify$.verifyWithOptions(Verify.scala:64)
	at vct.main.modes.Verify$.$anonfun$runOptions$3(Verify.scala:99)
	at scala.runtime.java8.JFunction0$mcI$sp.apply(JFunction0$mcI$sp.scala:17)
	at hre.util.Time$.logTime(Time.scala:23)
	at vct.main.modes.Verify$.runOptions(Verify.scala:99)
	at vct.main.Main$.runMode(Main.scala:107)
	at vct.main.Main$.$anonfun$runOptions$3(Main.scala:100)
	at scala.runtime.java8.JFunction0$mcI$sp.apply(JFunction0$mcI$sp.scala:17)
	at hre.middleware.Middleware$.using(Middleware.scala:78)
	at vct.main.Main$.$anonfun$runOptions$2(Main.scala:100)
	at scala.runtime.java8.JFunction0$mcI$sp.apply(JFunction0$mcI$sp.scala:17)
	at hre.io.Watch$.booleanWithWatch(Watch.scala:58)
	at vct.main.Main$.$anonfun$runOptions$1(Main.scala:100)
	at scala.runtime.java8.JFunction0$mcI$sp.apply(JFunction0$mcI$sp.scala:17)
	at hre.middleware.Middleware$.using(Middleware.scala:78)
	at vct.main.Main$.runOptions(Main.scala:95)
	at vct.main.Main$.main(Main.scala:50)
	at vct.main.Main.main(Main.scala)
[ERROR] !*!*!*!*!*!*!*!*!*!*!*!
[ERROR] ! VerCors has crashed !
[ERROR] !*!*!*!*!*!*!*!*!*!*!*!

Version: 2bd3bca (dev branch).

This issue was found by fuzzing.
@superaxander superaxander added A-Bug F-Java Frontend: Java Fuzzing Found by fuzzing labels Feb 12, 2025
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
A-Bug F-Java Frontend: Java Fuzzing Found by fuzzing
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@wandernauta @superaxander