我正在尝试编写一个单元测试来解决有关缺少堆栈映射帧的问题，但为此，我需要生成一个类，如果它缺少堆栈映射帧，则该类将无法在Java 8上进行验证。

下面你可以看到我的测试用例（依赖关系：ASM，Guava，JUnit）。它从 GuineaPig 类中删除堆栈映射帧，希望导致其字节码无法验证。我遇到问题的部分是用需要堆栈映射帧的最少代码填充 GuineaPig 中的 TODO，以便测试通过。

import com.google.common.io.*;
import org.junit.*;
import org.junit.rules.ExpectedException;
import org.objectweb.asm.*;

import java.io.*;

import static org.objectweb.asm.Opcodes.ASM5;

public class Java6MissingStackMapFrameFixerTest {

    @Rule
    public final ExpectedException thrown = ExpectedException.none();

    public static class GuineaPig {
        public GuineaPig() {
            // TODO: make me require stackmap frames
        }
    }

    @Test
    public void example_class_cannot_be_loaded_because_of_missing_stackmap_frame() throws Exception {
        byte[] originalBytecode = getBytecode(GuineaPig.class);

        ClassWriter cw = new ClassWriter(0);
        ClassVisitor cv = new ClassVisitor(ASM5, cw) {
            @Override
            public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
                return new MethodVisitor(ASM5, super.visitMethod(access, name, desc, signature, exceptions)) {
                    @Override
                    public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
                        // remove the stackmap frames in order to cause a VerifyError
//                        super.visitFrame(type, nLocal, local, nStack, stack);
                    }

                };
            }
        };
        new ClassReader(originalBytecode).accept(cv, 0);

        byte[] transformedBytecode = cw.toByteArray();
//        Files.asByteSink(new File("test.class")).write(transformedBytecode);

        thrown.expect(VerifyError.class);
        thrown.expectMessage("Expecting a stackmap frame");
        Class<?> clazz = new TestingClassLoader().defineClass(transformedBytecode);
        clazz.newInstance();
    }

    private static byte[] getBytecode(Class<?> clazz) throws IOException {
        String classFile = clazz.getName().replace(".", "/") + ".class";
        try (InputStream b = clazz.getClassLoader().getResourceAsStream(classFile)) {
            return ByteStreams.toByteArray(b);
        }
    }

    private static class TestingClassLoader extends ClassLoader {

        public Class<?> defineClass(byte[] bytecode) {
            ClassReader cr = new ClassReader(bytecode);
            String className = cr.getClassName().replace("/", ".");
            return this.defineClass(className, bytecode, 0, bytecode.length);
        }
    }
}