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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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/*
 * @test 8187805
 * @summary bogus RuntimeVisibleTypeAnnotations for unused local in a block
 * @modules jdk.compiler/com.sun.tools.javac.util
 * @run main BogusRTTAForUnusedVarTest
 */

import java.io.File;
import java.lang.annotation.Target;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

import java.lang.classfile.*;
import java.lang.classfile.attribute.CodeAttribute;
import java.lang.classfile.attribute.RuntimeVisibleTypeAnnotationsAttribute;
import com.sun.tools.javac.util.Assert;

public class BogusRTTAForUnusedVarTest {

    class Foo {
        void something() {
            {
                @MyAnno Object o = new Object();
            }
        }
    }

    @Target(ElementType.TYPE_USE)
    @Retention(RetentionPolicy.RUNTIME)
    @interface MyAnno {}

    public static void main(String args[]) throws Throwable {
        new BogusRTTAForUnusedVarTest().run();
    }

    void run() throws Throwable {
        checkRTTA();
    }

    void checkRTTA() throws Throwable {
        File testClasses = new File(System.getProperty("test.classes"));
        File file = new File(testClasses,
                BogusRTTAForUnusedVarTest.class.getName() + "$Foo.class");
        ClassModel classFile = ClassFile.of().parse(file.toPath());
        for (MethodModel m : classFile.methods()) {
            if (m.methodName().equalsString("something")) {
                for (Attribute<?> a : m.attributes()) {
                    if (a instanceof CodeAttribute code) {
                        for (Attribute<?> codeAttrs : code.attributes()) {
                            if (codeAttrs instanceof RuntimeVisibleTypeAnnotationsAttribute) {
                                throw new AssertionError("no RuntimeVisibleTypeAnnotations attribute should have been generated in this case");
                            }
                        }
                    }
                }
            }
        }
    }
}