test/hotspot/jtreg/vmTestbase/nsk/share/jdi/MockReferenceType.java

/*
 * Copyright (c) 2018, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package nsk.share.jdi;

import com.sun.jdi.*;

import java.util.List;
import java.util.Map;

/**
 * A mock implementation of com.sun.jdi.ReferenceType interface.
 */

public class MockReferenceType implements ReferenceType {

    private final String signature;
    private final String name;
    private final VirtualMachine virtualMachine;

    private MockReferenceType(VirtualMachine virtualMachine, String signature, String name) {
        this.signature = signature;
        this.name = name;
        this.virtualMachine = virtualMachine;
    }

    @Override
    public String signature() {
        return signature;
    }

    @Override
    public String name() {
        return name;
    }

    @Override
    public String genericSignature() {
        return null;
    }

    @Override
    public ClassLoaderReference classLoader() {
        return null;
    }

    @Override
    public String sourceName() throws AbsentInformationException {
        return null;
    }

    @Override
    public List<String> sourceNames(String stratum) throws AbsentInformationException {
        return null;
    }

    @Override
    public List<String> sourcePaths(String stratum) throws AbsentInformationException {
        return null;
    }

    @Override
    public String sourceDebugExtension() throws AbsentInformationException {
        return null;
    }

    @Override
    public boolean isStatic() {
        return false;
    }

    @Override
    public boolean isAbstract() {
        return false;
    }

    @Override
    public boolean isFinal() {
        return false;
    }

    @Override
    public boolean isPrepared() {
        return false;
    }

    @Override
    public boolean isVerified() {
        return false;
    }

    @Override
    public boolean isInitialized() {
        return false;
    }

    @Override
    public boolean failedToInitialize() {
        return false;
    }

    @Override
    public List<Field> fields() {
        return null;
    }

    @Override
    public List<Field> visibleFields() {
        return null;
    }

    @Override
    public List<Field> allFields() {
        return null;
    }

    @Override
    public Field fieldByName(String fieldName) {
        return null;
    }

    @Override
    public List<Method> methods() {
        return null;
    }

    @Override
    public List<Method> visibleMethods() {
        return null;
    }

    @Override
    public List<Method> allMethods() {
        return null;
    }

    @Override
    public List<Method> methodsByName(String name) {
        return null;
    }

    @Override
    public List<Method> methodsByName(String name, String signature) {
        return null;
    }

    @Override
    public List<ReferenceType> nestedTypes() {
        return null;
    }

    @Override
    public Value getValue(Field field) {
        return null;
    }

    @Override
    public Map<Field, Value> getValues(List<? extends Field> fields) {
        return null;
    }

    @Override
    public ClassObjectReference classObject() {
        return null;
    }

    @Override
    public List<Location> allLineLocations() throws AbsentInformationException {
        return null;
    }

    @Override
    public List<Location> allLineLocations(String stratum, String sourceName) throws AbsentInformationException {
        return null;
    }

    @Override
    public List<Location> locationsOfLine(int lineNumber) throws AbsentInformationException {
        return null;
    }

    @Override
    public List<Location> locationsOfLine(String stratum, String sourceName, int lineNumber)
            throws AbsentInformationException {
        return null;
    }

    @Override
    public List<String> availableStrata() {
        return null;
    }

    @Override
    public String defaultStratum() {
        return null;
    }

    @Override
    public List<ObjectReference> instances(long maxInstances) {
        return null;
    }

    @Override
    public int majorVersion() {
        return 0;
    }

    @Override
    public int minorVersion() {
        return 0;
    }

    @Override
    public int constantPoolCount() {
        return 0;
    }

    @Override
    public byte[] constantPool() {
        return new byte[0];
    }

    @Override
    public VirtualMachine virtualMachine() {
        return virtualMachine;
    }

    @Override
    public int modifiers() {
        return 0;
    }

    @Override
    public boolean isPrivate() {
        return false;
    }

    @Override
    public boolean isPackagePrivate() {
        return false;
    }

    @Override
    public boolean isProtected() {
        return false;
    }

    @Override
    public boolean isPublic() {
        return false;
    }

    @Override
    public int compareTo(ReferenceType o) {
        return 0;
    }

    /*
     * Creates a mock instance of com.sun.tools.jdi.ObjectReference with a given type.
     */

    public static Value createObjectReference(VirtualMachine virtualMachine, String typeSignature, String typeName)
            throws Exception {

        Class clazz = Class.forName("com.sun.tools.jdi.ObjectReferenceImpl");
        java.lang.reflect.Constructor c = clazz.getDeclaredConstructor(VirtualMachine.class, long.class);
        c.setAccessible(true);
        Value objRef = (Value) c.newInstance(virtualMachine, 0);

        Type mockType = new MockReferenceType(virtualMachine, typeSignature, typeName);
        java.lang.reflect.Field typeField = clazz.getDeclaredField("type");
        typeField.setAccessible(true);
        typeField.set(objRef, mockType);

        return objRef;
    }
}