[Bug]: Not allowed javaletter or keyword in identifier found

[callain-mirakl]

Describe the bug

Hello, I have this error, even with the latest version. Could you tell me how I can debug the execution to see which files cause the issue? Thanks.

[ERROR] Unexpected error
spoon.JLSViolation: Not allowed javaletter or keyword in identifier found. See JLS for correct identifier. Identifier: K'
    at spoon.JLSViolation.throwIfSyntaxErrorsAreNotIgnored (JLSViolation.java:38)

Source code you are trying to analyze/transform

No response

Source code for your Spoon processing

No response

Actual output

No response

Expected output

No response

Spoon Version

10.4.2

JVM Version

openjdk 17.0.7 2023-04-18 LTS OpenJDK Runtime Environment Zulu17.42+19-CA (build 17.0.7+7-LTS) OpenJDK 64-Bit Server VM Zulu17.42+19-CA (build 17.0.7+7-LTS, mixed mode, sharing)

What operating system are you using?

macOS

[MartinWitt]

Hey,

For a CtElement with a position you can use element.getPosition().getFile(). Providing a reproduction example or instruction what you are doing is necessary for us to debug this.

[callain-mirakl]

My coworker managed to reproduce the issue during my holidays, the solution we implemented is to use a variable to store the instance of the new HashMap

Problem

package com.demo;

import java.util.HashMap;
import java.util.Map;

public class TestClass {

    private final Map<String, Object> testMap;

    public TestClass() {
        this.testMap = Map.of("TEST", true);
    }

    public Boolean myTest() {
        var redirectView = Boolean.TRUE;
        return test(redirectView, new HashMap<>(testMap));
    }


    private Boolean test(final Boolean redirectView, final Map<String, Object> params) {
        params.put("TEST", "TEST");
        return redirectView;
    }
}

Solution

public Boolean myTest() {
    var redirectView = Boolean.TRUE;
    var solution = new HashMap<>(testMap);
    return test(redirectView, solution);
}

[tenax66]

Do you mean that JLSViolation error occurred when the code you provided was analyzed by spoon? Could you also provide the spoon code used for the analysis?

[callain-mirakl]

Yes, I've extracted the code of the launcher

        String path = "src/test/java";
        String basedir = new File(path).getAbsolutePath();
        Launcher launcher = new Launcher();
        launcher.getEnvironment().setNoClasspath(true);
        launcher.addInputResource(basedir);
        launcher.buildModel();

And here is the complete stack

spoon.JLSViolation: Not allowed javaletter or keyword in identifier found. See JLS for correct identifier. Identifier: K'
        at spoon.JLSViolation.throwIfSyntaxErrorsAreNotIgnored(JLSViolation.java:38)
        at spoon.support.reflect.reference.CtReferenceImpl.checkIdentifierForJLSCorrectness(CtReferenceImpl.java:114)
        at spoon.support.reflect.reference.CtReferenceImpl.setSimpleName(CtReferenceImpl.java:57)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReferenceFromTypeVariableBinding(ReferenceBuilder.java:1026)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReference(ReferenceBuilder.java:863)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReference(ReferenceBuilder.java:842)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReferenceFromWildcardBinding(ReferenceBuilder.java:1107)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReference(ReferenceBuilder.java:867)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReference(ReferenceBuilder.java:842)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReferenceFromTypeArgument(ReferenceBuilder.java:976)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
        at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
        at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeArguments(ReferenceBuilder.java:961)
        at spoon.support.compiler.jdt.ReferenceBuilder.getParameterizedTypeReference(ReferenceBuilder.java:948)
        at spoon.support.compiler.jdt.ReferenceBuilder.getTypeReference(ReferenceBuilder.java:857)
        at spoon.support.compiler.jdt.ReferenceBuilder.getExecutableReference(ReferenceBuilder.java:475)
        at spoon.support.compiler.jdt.ReferenceBuilder.getExecutableReference(ReferenceBuilder.java:414)
        at spoon.support.compiler.jdt.ReferenceBuilder.getExecutableReference(ReferenceBuilder.java:493)
        at spoon.support.compiler.jdt.JDTTreeBuilder.visit(JDTTreeBuilder.java:880)
        at org.eclipse.jdt.internal.compiler.ast.AllocationExpression.traverse(AllocationExpression.java:727)
        at org.eclipse.jdt.internal.compiler.ast.MessageSend.traverse(MessageSend.java:1176)
        at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.traverse(ReturnStatement.java:392)
        at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.traverse(MethodDeclaration.java:437)
        at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.traverse(TypeDeclaration.java:1700)
        at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:829)
        at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.traverse(CompilationUnitDeclaration.java:790)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.traverseUnitDeclaration(JDTBasedSpoonCompiler.java:481)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.lambda$buildModel$0(JDTBasedSpoonCompiler.java:438)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.forEachCompilationUnit(JDTBasedSpoonCompiler.java:465)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.buildModel(JDTBasedSpoonCompiler.java:436)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.buildUnitsAndModel(JDTBasedSpoonCompiler.java:373)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.buildSources(JDTBasedSpoonCompiler.java:336)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.build(JDTBasedSpoonCompiler.java:117)
        at spoon.support.compiler.jdt.JDTBasedSpoonCompiler.build(JDTBasedSpoonCompiler.java:100)
        at spoon.Launcher.buildModel(Launcher.java:781)

[tenax66]

Does the src/test/java folder containing TestClass cause the error? I could not reproduce it.

Could you provide a minimal example that reproduces the problem? Please also try the approach that MartinWitt commented on.