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VS Code: java modules: ResponseAPDU cannot be resolved to a type #3879

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Honza-cz opened this issue Nov 28, 2024 · 2 comments
Open

VS Code: java modules: ResponseAPDU cannot be resolved to a type #3879

Honza-cz opened this issue Nov 28, 2024 · 2 comments

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@Honza-cz
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Hello,

I am struggling with visual studio code and modules. I am working on project, which needs to use java.base/javax.smartcardio. But VS Code complains "ResponseAPDU cannot be resolved to a type".

The demo class to demonstrate the issue is:

import javax.smartcardio.ResponseAPDU;

public class SmartCardIoDemo {
    public static void main(String[] args) throws Exception {
        System.out.println("start");
        ResponseAPDU rapdu = new ResponseAPDU(new byte[2]);
        System.out.println("end");
    }
}

It can be fixed it by adding module-info.java

module myModule {
    requires java.smartcardio;
}

but this is not possible to do it in our codebase because we don't use java modules. If I run the build and test by maven, then it works fine (without any --add-exports etc).

I tried following change in settings.json but it didn't solve the issue:

{
   "java.jdt.ls.vmargs":"--add-exports=java.base/javax.smartcardio=ALL-UNNAMED -XX:+UseParallelGC -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -Dsun.zip.disableMemoryMapping=true -Xmx1G -Xms100m -Xlog:disable"
}

I am even bit confused which part (extension) complains about that import, because during opening of the project, I can click through reference of ResponseAPDU to see the decompiled code.

Image
Sample app SmartCardio.zip
App can be executed by mvn clean package exec:java -Dexec.mainClass="com.mycompany.SmartCardIoDemo"

but if I click on run main method, I got this error in terminal:

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
        ResponseAPDU cannot be resolved to a type
        ResponseAPDU cannot be resolved to a type

        at com.mycompany.SmartCardIoDemo.main(SmartCardIoDemo.java:11)

Thx in advance for any advice.
@fbricon
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fbricon commented Nov 28, 2024

Interesting, seems "java.jdt.ls.javac.enabled": "on" fixes it.

enabling-javac.mp4

@Honza-cz
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Author

That works in that sample application. But in prod repo, beside having access to the module once activating javac, I had to upgrade jdk for java language server to version 23. It somehow broke the compilation / junit test exec. I will see, If I can reproduce it in the sample application.

In the VS code logs, I found this exceptions as this one:

!ENTRY org.eclipse.jdt.core 4 0 2024-11-29 08:52:42.707
!MESSAGE T.getVersion
!STACK 0
java.lang.AssertionError: T.getVersion
	at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:162)
	at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.<init>(Symbol.java:1976)
	at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol$1.<init>(Symbol.java:1982)
	at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.clone(Symbol.java:1982)
	at jdk.compiler/com.sun.tools.javac.code.Symbol$MethodSymbol.clone(Symbol.java:1952)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.binaryQualifier(Gen.java:264)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2410)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitSelect(ProceedOnErrorGen.java:109)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2570)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1929)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitApply(ProceedOnErrorGen.java:100)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1857)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2390)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitSelect(ProceedOnErrorGen.java:109)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2570)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1929)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitApply(ProceedOnErrorGen.java:100)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1857)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:884)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1934)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitApply(ProceedOnErrorGen.java:100)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1857)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:859)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitExec(Gen.java:1802)
	at org.eclipse.jdt.internal.javac.ProceedOnErrorGen.visitExec(ProceedOnErrorGen.java:118)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1644)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:660)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.internalVisitBlock(Gen.java:1121)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1085)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1133)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitIf(Gen.java:1776)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1613)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:609)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:660)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.internalVisitBlock(Gen.java:1121)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1085)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1133)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:623)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:949)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:912)
	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:957)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:588)
	at jdk.compiler/com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2494)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:770)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1700)
	at org.eclipse.jdt.internal.javac.JavacCompiler$2.generate(JavacCompiler.java:156)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1668)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:977)
	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:897)
	at org.eclipse.jdt.internal.javac.JavacCompiler.compile(JavacCompiler.java:184)
	at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:441)
	at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.compile(BatchImageBuilder.java:250)
	at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:372)
	at org.eclipse.jdt.internal.core.builder.BatchImageBuilder.build(BatchImageBuilder.java:118)
	at org.eclipse.jdt.internal.core.builder.JavaBuilder.buildAll(JavaBuilder.java:314)
	at org.eclipse.jdt.internal.core.builder.JavaBuilder.build(JavaBuilder.java:226)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:1077)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:296)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:352)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:441)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:444)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:555)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:503)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:585)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:207)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:300)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

@Honza-cz Honza-cz mentioned this issue Dec 13, 2024
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@fbricon @Honza-cz