Examples of org.eclipse.persistence.internal.libraries.asm.CodeVisitor

Package org.eclipse.persistence.internal.libraries.asm

Examples of org.eclipse.persistence.internal.libraries.asm.CodeVisitor

org.eclipse.persistence.internal.libraries.asm.CodeVisitor
A visitor to visit the bytecode instructions of a Java method. The methods of this visitor must be called in the sequential order of the bytecode instructions of the visited code. The {@link #visitMaxs visitMaxs} methodmust be called after all the instructions have been visited. The {@link #visitTryCatchBlock visitTryCatchBlock}, {@link #visitLocalVariable visitLocalVariable} and {@link #visitLineNumber visitLineNumber} methods maybe called in any order, at any time (provided the labels passed as arguments have already been visited with {@link #visitLabel visitLabel}). @author Eric Bruneton

        }        
        addPropertyGetMethodInternal(cw, property, outerGetMethodName, returnType);        
    }
    
    private void addPropertyGetMethodInternal(ClassWriter cw, SDOProperty property, String outerGetMethodName, String returnType){
      CodeVisitor mv;
        String propertyInstanceClassDescriptor;
        if(property.isMany()) {
            propertyInstanceClassDescriptor = Type.getDescriptor(List.class);
        } else if(property.getType().isDataType()) {
            propertyInstanceClassDescriptor = Type.getDescriptor(property.getType().getInstanceClass());
        } else {
            propertyInstanceClassDescriptor = "L" + returnType.replace('.', '/') + ";";
        }
        mv = cw.visitMethod(Constants.ACC_PUBLIC, outerGetMethodName, "()" + propertyInstanceClassDescriptor, null, null);


        mv.visitVarInsn(Constants.ALOAD, 0);
        mv.visitIntInsn(Constants.BIPUSH, startPropertyIndex + property.getIndexInType());


        String builtIn = SDOUtil.getBuiltInType(returnType);
        if(null != builtIn) {
            if(property.getType().isDataType() && !builtIn.equals(LIST)) {
                mv.visitMethodInsn(Constants.INVOKEVIRTUAL, typeImplClassDescriptor, GET + builtIn, "(I)" + propertyInstanceClassDescriptor);
                int iReturnOpcode = Type.getType(property.getType().getInstanceClass()).getOpcode(Constants.IRETURN);
                mv.visitInsn(iReturnOpcode);
            } else {
                mv.visitMethodInsn(Constants.INVOKEVIRTUAL,  typeImplClassDescriptor, GET, "(I)Ljava/lang/Object;");                        
                mv.visitInsn(Constants.ARETURN);
            }
        } else {
            mv.visitMethodInsn(Constants.INVOKEVIRTUAL,  typeImplClassDescriptor, GET, "(I)Ljava/lang/Object;");                        
            mv.visitInsn(Constants.ARETURN);
        }
        mv.visitMaxs(2, 1);
    }

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    private void addPropertySetMethod(ClassWriter cw, SDOProperty property) {
        String returnType = SDOUtil.getJavaTypeForProperty(property);
        String outerSetMethodName = SDOUtil.setMethodName(property.getName());


        CodeVisitor mv;
        String propertyInstanceClassDescriptor;


        if(property.isMany()) {
            propertyInstanceClassDescriptor = Type.getDescriptor(List.class);
        } else if(property.getType().isDataType()) {
            propertyInstanceClassDescriptor = Type.getDescriptor(property.getType().getInstanceClass());
        } else {
            propertyInstanceClassDescriptor = "L" + returnType.replace('.', '/') + ";";
        }
        mv = cw.visitMethod(Constants.ACC_PUBLIC, outerSetMethodName, "(" + propertyInstanceClassDescriptor + ")V", null, null);


        mv.visitVarInsn(Constants.ALOAD, 0);
        mv.visitIntInsn(Constants.BIPUSH, startPropertyIndex + property.getIndexInType());


        String builtIn = SDOUtil.getBuiltInType(returnType);
        int iLoadOpcode = Constants.ALOAD;
        if(null != builtIn) {
            if(property.getType().isDataType() && !builtIn.equals(LIST)) {
                iLoadOpcode = Type.getType(property.getType().getInstanceClass()).getOpcode(Constants.ILOAD);
                mv.visitVarInsn(iLoadOpcode, 1);
                mv.visitMethodInsn(Constants.INVOKEVIRTUAL, typeImplClassDescriptor, SET + builtIn, "(I" + propertyInstanceClassDescriptor + ")V");
            } else {
                mv.visitVarInsn(iLoadOpcode, 1);
                mv.visitMethodInsn(Constants.INVOKEVIRTUAL,  typeImplClassDescriptor, SET, "(ILjava/lang/Object;)V");                        
            }
        } else {
            mv.visitVarInsn(iLoadOpcode, 1);
            mv.visitMethodInsn(Constants.INVOKEVIRTUAL,  typeImplClassDescriptor, SET, "(ILjava/lang/Object;)V");                        
        }


        mv.visitInsn(Constants.RETURN);
        if(iLoadOpcode == Constants.DLOAD || iLoadOpcode == Constants.LLOAD) {
            mv.visitMaxs(4, 3);
        } else {
            mv.visitMaxs(3, 2);
        }
    }

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            method = parentClass.getDeclaredMethod(WRITE_REPLACE, new Class[0]);
        } catch (NoSuchMethodException e) {
            return;
        }


        CodeVisitor mv = cw.visitMethod(Constants.ACC_PROTECTED, method.getName(), Type.getMethodDescriptor(method), new String[] { Type.getInternalName(ObjectStreamException.class) }, null);


        mv.visitVarInsn(Constants.ALOAD, 0);
        mv.visitMethodInsn(Constants.INVOKESPECIAL, Type.getInternalName(parentClass), method.getName(), Type.getMethodDescriptor(method));
        mv.visitInsn(Constants.ARETURN);
        mv.visitMaxs(1, 1);
    }

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        for (int index = 0; index < constructor.getParameterTypes().length; index++) {
            types[index] = Type.getType(constructor.getParameterTypes()[index]);
        }


        String consDesc = Type.getMethodDescriptor(Type.VOID_TYPE, types);
        CodeVisitor mv = cw.visitMethod(ACC_PUBLIC, INIT, consDesc, null, null);
        mv.visitVarInsn(ALOAD, 0);


        for (int param = 1; param <= constructor.getParameterTypes().length; param++) {
            mv.visitVarInsn(ALOAD, param);
        }


        mv.visitMethodInsn(INVOKESPECIAL, Type.getType(constructor.getDeclaringClass()).getInternalName(), INIT, consDesc);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
    }

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            }


            String methodDesc = Type.getMethodDescriptor(method);
            String[] exceptionsDesc = new String[] { Type.getType(ObjectStreamException.class).getInternalName() };


            CodeVisitor mv = cw.visitMethod(ACC_PROTECTED, method.getName(), methodDesc, exceptionsDesc, null);
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(getParentClass()), method.getName(), methodDesc);
            mv.visitInsn(ARETURN);
            mv.visitMaxs(0, 0);
        }
    }

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    }


    private Class generateMapEntryClass(String className, String keyType, String valueType){


        ClassWriter cw = new ClassWriter(false);
        CodeVisitor cv;


        String qualifiedInternalClassName = className.replace('.', '/');
        String qualifiedInternalKeyClassName = keyType.replace('.', '/');
        String qualifiedInternalValueClassName = valueType.replace('.', '/');


        cw.visit(Constants.V1_5, Constants.ACC_PUBLIC + Constants.ACC_SUPER, qualifiedInternalClassName, "java/lang/Object", new String[] { "org/eclipse/persistence/internal/jaxb/many/MapEntry" }, className.substring(className.lastIndexOf(".")));


        cw.visitField(Constants.ACC_PRIVATE, "key", "L"+qualifiedInternalKeyClassName+";", null, null);


        cw.visitField(Constants.ACC_PRIVATE, "value", "L"+qualifiedInternalValueClassName+";", null, null);


        cv = cw.visitMethod(Constants.ACC_PUBLIC, "<init>", "()V", null, null);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitMethodInsn(Constants.INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        cv.visitInsn(Constants.RETURN);
        cv.visitMaxs(1, 1);


        cv = cw.visitMethod(Constants.ACC_PUBLIC, "getKey", "()L"+qualifiedInternalKeyClassName+";", null, null);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitFieldInsn(Constants.GETFIELD, qualifiedInternalClassName, "key", "L"+qualifiedInternalKeyClassName+";");
        cv.visitInsn(Constants.ARETURN);
        cv.visitMaxs(1, 1);


        cv = cw.visitMethod(Constants.ACC_PUBLIC, "setKey", "(L"+qualifiedInternalKeyClassName+";)V", null, null);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitVarInsn(Constants.ALOAD, 1);
        cv.visitFieldInsn(Constants.PUTFIELD, qualifiedInternalClassName, "key", "L"+qualifiedInternalKeyClassName+";");
        cv.visitInsn(Constants.RETURN);
        cv.visitMaxs(2, 2);


        cv = cw.visitMethod(Constants.ACC_PUBLIC, "getValue", "()L"+qualifiedInternalValueClassName+";", null, null);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitFieldInsn(Constants.GETFIELD, qualifiedInternalClassName, "value", "L"+qualifiedInternalValueClassName+";");
        cv.visitInsn(Constants.ARETURN);
        cv.visitMaxs(1, 1);


        cv = cw.visitMethod(Constants.ACC_PUBLIC, "setValue", "(L"+qualifiedInternalValueClassName+";)V", null, null);
        cv.visitVarInsn(Constants.ALOAD, 0);
        cv.visitVarInsn(Constants.ALOAD, 1);
        cv.visitFieldInsn(Constants.PUTFIELD, qualifiedInternalClassName, "value", "L"+qualifiedInternalValueClassName+";");
        cv.visitInsn(Constants.RETURN);
        cv.visitMaxs(2, 2);


        if(!qualifiedInternalValueClassName.equals("java/lang/Object")){
          cv = cw.visitMethod(Constants.ACC_PUBLIC + Constants.ACC_BRIDGE + Constants.ACC_SYNTHETIC, "getValue", "()Ljava/lang/Object;", null, null);
          cv.visitVarInsn(Constants.ALOAD, 0);
          cv.visitMethodInsn(Constants.INVOKEVIRTUAL, qualifiedInternalClassName, "getValue", "()L"+qualifiedInternalValueClassName+";");
          cv.visitInsn(Constants.ARETURN);
          cv.visitMaxs(1, 1);


          cv = cw.visitMethod(Constants.ACC_PUBLIC + Constants.ACC_BRIDGE + Constants.ACC_SYNTHETIC, "setValue", "(Ljava/lang/Object;)V", null, null);
          cv.visitVarInsn(Constants.ALOAD, 0);
          cv.visitVarInsn(Constants.ALOAD, 1);
          cv.visitTypeInsn(Constants.CHECKCAST, qualifiedInternalValueClassName);
          cv.visitMethodInsn(Constants.INVOKEVIRTUAL, qualifiedInternalClassName, "setValue", "(L"+qualifiedInternalValueClassName+";)V");
          cv.visitInsn(Constants.RETURN);
          cv.visitMaxs(2, 2);
        }


        if(!qualifiedInternalKeyClassName.equals("java/lang/Object")){
            cv = cw.visitMethod(Constants.ACC_PUBLIC + Constants.ACC_BRIDGE + Constants.ACC_SYNTHETIC, "getKey", "()Ljava/lang/Object;", null, null);
            cv.visitVarInsn(Constants.ALOAD, 0);
            cv.visitMethodInsn(Constants.INVOKEVIRTUAL,qualifiedInternalClassName, "getKey", "()L"+qualifiedInternalKeyClassName+";");
            cv.visitInsn(Constants.ARETURN);
            cv.visitMaxs(1, 1);


            cv = cw.visitMethod(Constants.ACC_PUBLIC + Constants.ACC_BRIDGE + Constants.ACC_SYNTHETIC, "setKey", "(Ljava/lang/Object;)V", null, null);
            cv.visitVarInsn(Constants.ALOAD, 0);
            cv.visitVarInsn(Constants.ALOAD, 1);
            cv.visitTypeInsn(Constants.CHECKCAST, qualifiedInternalKeyClassName);
            cv.visitMethodInsn(Constants.INVOKEVIRTUAL, qualifiedInternalClassName, "setKey", "(L"+qualifiedInternalKeyClassName+";)V");
            cv.visitInsn(Constants.RETURN);
            cv.visitMaxs(2, 2);
        }


      // CLASS ATRIBUTE
        SignatureAttribute attr = new SignatureAttribute("Ljava/lang/Object;Lorg/eclipse/persistence/internal/jaxb/many/MapEntry<L"+qualifiedInternalKeyClassName+";L"+qualifiedInternalValueClassName+";>;");
        cw.visitAttribute(attr);

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    }


    public Class generateWrapperClass(String className, String attributeType, boolean isList, QName theQName) {
        org.eclipse.persistence.internal.libraries.asm.ClassWriter cw = new org.eclipse.persistence.internal.libraries.asm.ClassWriter(false);


        CodeVisitor cv;
        cw.visit(Constants.V1_5, Constants.ACC_PUBLIC, className.replace(".", "/"), org.eclipse.persistence.internal.libraries.asm.Type.getType(WrappedValue.class).getInternalName(), new String[0], null);


        String fieldType = null;
        if(isList){
            fieldType ="Ljava/util/List;";
        }else{
            fieldType = attributeType.replace(".", "/");
            if(!(fieldType.startsWith("["))) {
                fieldType = "L" + fieldType + ";";
            }
        }


          if(theQName == null){
            theQName = RESERVED_QNAME;
          }


          cv = cw.visitMethod(Constants.ACC_PUBLIC, "<init>", "()V", null, null);


          cv.visitVarInsn(Constants.ALOAD, 0);
          cv.visitTypeInsn(Constants.NEW, "javax/xml/namespace/QName");
          cv.visitInsn(Constants.DUP);
          cv.visitLdcInsn(theQName.getNamespaceURI());
          cv.visitLdcInsn(theQName.getLocalPart());
          cv.visitMethodInsn(Constants.INVOKESPECIAL, "javax/xml/namespace/QName", "<init>", "(Ljava/lang/String;Ljava/lang/String;)V");
          cv.visitLdcInsn(Type.getType(fieldType));
          cv.visitInsn(Constants.ACONST_NULL);


          cv.visitMethodInsn(Constants.INVOKESPECIAL, "org/eclipse/persistence/internal/jaxb/WrappedValue", "<init>", "(Ljavax/xml/namespace/QName;Ljava/lang/Class;Ljava/lang/Object;)V");
          cv.visitInsn(Constants.RETURN);
          cv.visitMaxs(5, 1);




        cw.visitEnd();


        byte[] classBytes = cw.toByteArray();

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        }
        String classNameAsSlashes = className.replace('.', '/');
        String parentClassNameAsSlashes = parentClassName.replace('.', '/');
        
        ClassWriter cw = new ClassWriter(true);
        CodeVisitor cv;
        
        // public class Foo extends DynamicEntityImpl {
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classNameAsSlashes, parentClassNameAsSlashes, null,
            null);
        
        // public static DynamicPropertiesManager DPM = new DynamicPropertiesManager();
        cw.visitField(ACC_PUBLIC + ACC_STATIC, PROPERTIES_MANAGER_FIELD,
            "L" + DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";", null, null);
        cv = cw.visitMethod(ACC_STATIC, CLINIT, "()V", null, null);
        cv.visitTypeInsn(NEW, DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES);
        cv.visitInsn(DUP);
        cv.visitMethodInsn(INVOKESPECIAL, DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES, INIT, "()V");
        cv.visitFieldInsn(PUTSTATIC, classNameAsSlashes, PROPERTIES_MANAGER_FIELD,
            "L" + DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";");
        cv.visitInsn(RETURN);
        cv.visitMaxs(0, 0);
        
        // public Foo() {
        //     super();
        // }
        cv = cw.visitMethod(ACC_PUBLIC, INIT, "()V", null, null);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitMethodInsn(INVOKESPECIAL, parentClassNameAsSlashes, INIT, "()V");
        cv.visitInsn(RETURN);
        cv.visitMaxs(0, 0);
        
        cv = cw.visitMethod(ACC_PUBLIC, "fetchPropertiesManager", 
            "()L" + DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";", null, null);
        cv.visitFieldInsn(GETSTATIC, classNameAsSlashes, PROPERTIES_MANAGER_FIELD,
            "L" + DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";");
        cv.visitInsn(ARETURN);
        cv.visitMaxs(0, 0);
        
        cw.visitEnd();
        return cw.toByteArray();
        
    }

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        String[] enumValues = enumInfo.getLiteralLabels();
        String className = enumInfo.getClassName();


        String internalClassName = className.replace('.', '/');


        CodeVisitor cv;


        ClassWriter cw = new ClassWriter(true);
        cw.visit(V1_5, ACC_PUBLIC + ACC_FINAL + ACC_SUPER + ACC_ENUM, internalClassName,
            "java/lang/Enum", null, null);


        // Add the individual enum values
        for (String enumValue : enumValues) {
            cw.visitField(ACC_PUBLIC + ACC_FINAL + ACC_STATIC + ACC_ENUM, enumValue, "L"
                + internalClassName + ";", null, null);
        }


        // add the synthetic "$VALUES" field
        cw.visitField(ACC_PRIVATE + ACC_FINAL + ACC_STATIC + ACC_SYNTHETIC, "$VALUES", "[L"
            + internalClassName + ";", null, null);


        // Add the "values()" method
        cv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "values", "()[L" + internalClassName + ";",
            null, null);
        cv.visitFieldInsn(GETSTATIC, internalClassName, "$VALUES", "[L" + internalClassName + ";");
        cv.visitMethodInsn(INVOKEVIRTUAL, "[L" + internalClassName + ";", "clone",
            "()Ljava/lang/Object;");
        cv.visitTypeInsn(CHECKCAST, "[L" + internalClassName + ";");
        cv.visitInsn(ARETURN);
        cv.visitMaxs(1, 0);


        // Add the "valueOf()" method
        cv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "valueOf", "(Ljava/lang/String;)L"
            + internalClassName + ";", null, null);
        cv.visitLdcInsn(Type.getType("L" + internalClassName + ";"));
        cv.visitVarInsn(ALOAD, 0);
        cv.visitMethodInsn(INVOKESTATIC, "java/lang/Enum", "valueOf",
            "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;");
        cv.visitTypeInsn(CHECKCAST, internalClassName);
        cv.visitInsn(ARETURN);
        cv.visitMaxs(2, 1);


        // Add constructors
        SignatureAttribute methodAttrs1 = new SignatureAttribute("()V");
        cv = cw.visitMethod(ACC_PRIVATE, "<init>", "(Ljava/lang/String;I)V", null, methodAttrs1);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitVarInsn(ALOAD, 1);
        cv.visitVarInsn(ILOAD, 2);
        cv.visitMethodInsn(INVOKESPECIAL, "java/lang/Enum", "<init>", "(Ljava/lang/String;I)V");
        cv.visitInsn(RETURN);
        cv.visitMaxs(3, 3);


        // Add enum constants
        cv = cw.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);


        int lastCount = 0;
        for (int i = 0; i < enumValues.length; i++) {
            String enumValue = enumValues[i];
            cv.visitTypeInsn(NEW, internalClassName);
            cv.visitInsn(DUP);
            cv.visitLdcInsn(enumValue);
            if (i <= 5) {
                cv.visitInsn(ICONST[i]);
            }
            else {
                cv.visitIntInsn(BIPUSH, i);
            }
            cv.visitMethodInsn(INVOKESPECIAL, internalClassName, "<init>",
                    "(Ljava/lang/String;I)V");
            cv.visitFieldInsn(PUTSTATIC, internalClassName, enumValue, "L" + internalClassName
                + ";");
            lastCount = i;
        }


        if (lastCount <= 5) {
            cv.visitInsn(ICONST[lastCount + 1]);
        }
        else {
            cv.visitIntInsn(BIPUSH, lastCount + 1);
        }
        cv.visitTypeInsn(ANEWARRAY, internalClassName);


        for (int i = 0; i < enumValues.length; i++) {
            String enumValue = enumValues[i];
            cv.visitInsn(DUP);
            if (i <= 5) {
                cv.visitInsn(ICONST[i]);
            }
            else {
                cv.visitIntInsn(BIPUSH, i);
            }
            cv.visitFieldInsn(GETSTATIC, internalClassName, enumValue, "L" + internalClassName
                + ";");
            cv.visitInsn(AASTORE);
        }
        cv.visitFieldInsn(PUTSTATIC, internalClassName, "$VALUES", "[L" + internalClassName + ";");
        cv.visitInsn(RETURN);
        cv.visitMaxs(4, 0);


        cw.visitEnd();
        return cw.toByteArray();
    }

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    @Override
    public byte[] writeClass(DynamicClassLoader loader, String className) throws ClassNotFoundException {


        String classNameAsSlashes = className.replace('.', '/');
        ClassWriter cw = new ClassWriter(true);
        CodeVisitor cv;
        // special-case: build sub-class of XRDynamicEntityCollection
        if (className.endsWith(COLLECTION_WRAPPER_SUFFIX)) {
                cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classNameAsSlashes,
                        XR_DYNAMIC_ENTITY_COLLECTION_CLASSNAME_SLASHES, null, null);
                cv = cw.visitMethod(ACC_PUBLIC, INIT, "()V", null, null);
                cv.visitVarInsn(ALOAD, 0);
                cv.visitMethodInsn(INVOKESPECIAL, XR_DYNAMIC_ENTITY_COLLECTION_CLASSNAME_SLASHES,
                    INIT, "()V");
                cv.visitInsn(RETURN);
                cv.visitMaxs(0, 0);
        }
        else {
        // public class Foo extends XRDynamicEntity {
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classNameAsSlashes,
            XR_DYNAMIC_ENTITY_CLASSNAME_SLASHES, null, null);


        // public static XRDynamicPropertiesManager DPM = new XRDynamicPropertiesManager();
        cw.visitField(ACC_PUBLIC + ACC_STATIC, PROPERTIES_MANAGER_FIELD,
            "L" + XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";", null, null);
        cv = cw.visitMethod(ACC_STATIC, CLINIT, "()V", null, null);
        cv.visitTypeInsn(NEW, XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES);
        cv.visitInsn(DUP);
        cv.visitMethodInsn(INVOKESPECIAL, XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES, INIT, "()V");
        cv.visitFieldInsn(PUTSTATIC, classNameAsSlashes, PROPERTIES_MANAGER_FIELD,
            "L" + XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";");
        cv.visitInsn(RETURN);
        cv.visitMaxs(0, 0);


        // public Foo() {
        //     super();
        // }
        cv = cw.visitMethod(ACC_PUBLIC, INIT, "()V", null, null);
        cv.visitVarInsn(ALOAD, 0);
        cv.visitMethodInsn(INVOKESPECIAL, XR_DYNAMIC_ENTITY_CLASSNAME_SLASHES, INIT, "()V");
        cv.visitInsn(RETURN);
        cv.visitMaxs(0, 0);


        // public XRDynamicPropertiesManager fetchPropertiesManager() {
        cv = cw.visitMethod(ACC_PUBLIC, "fetchPropertiesManager",
            "()L" + XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";", null, null);
        cv.visitFieldInsn(GETSTATIC, classNameAsSlashes, PROPERTIES_MANAGER_FIELD,
            "L" + XR_DYNAMIC_PROPERTIES_MANAGER_CLASSNAME_SLASHES + ";");
        cv.visitInsn(ARETURN);
        cv.visitMaxs(0, 0);
        }
        cw.visitEnd();
        return cw.toByteArray();
    }

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