381 lines
17 KiB
Java
381 lines
17 KiB
Java
/*
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* Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4719923
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* @summary Test that MBeanInfo.equals works even for mutable subclasses
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* @author Eamonn McManus
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*
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* @run clean MBeanInfoEqualsTest
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* @run build MBeanInfoEqualsTest
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* @run main MBeanInfoEqualsTest
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*/
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/* Test that MBeanInfo and its referenced classes implement the equals
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and hashCode methods correctly. These classes include some magic
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to improve performance based on the classes' immutability. The
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logic checks that any subclasses encountered remain immutable, and
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falls back on less performant code if not. */
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import javax.management.*;
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import java.lang.reflect.*;
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public class MBeanInfoEqualsTest {
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// Class just used for reflection
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private static class Toy {
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public Toy() {}
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public Toy(int a, String b) {}
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public int getA() {return 0;}
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public void setA(int a) {}
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public boolean isB() {return false;}
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public void setB(boolean b) {}
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public void run() {}
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public void blah(int a, String b) {}
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}
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static final Class toy = Toy.class;
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static final Constructor con1, con2;
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static final Method getA, setA, isB, setB, run, blah;
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static {
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try {
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con1 = toy.getConstructor(new Class[] {});
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con2 = toy.getConstructor(new Class[] {Integer.TYPE,
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String.class});
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getA = toy.getMethod("getA", new Class[] {});
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setA = toy.getMethod("setA", new Class[] {Integer.TYPE});
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isB = toy.getMethod("isB", new Class[] {});
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setB = toy.getMethod("setB", new Class[] {Boolean.TYPE});
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run = toy.getMethod("run", new Class[] {});
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blah = toy.getMethod("blah", new Class[] {Integer.TYPE,
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String.class});
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} catch (Exception e) {
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throw new Error(e.getMessage());
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}
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}
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private static final MBeanAttributeInfo
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newMBeanAttributeInfo(String name, String description,
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Method getter, Method setter) {
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try {
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return new MBeanAttributeInfo(name, description, getter, setter);
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} catch (IntrospectionException e) {
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throw new Error(e.getMessage());
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}
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}
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static final MBeanAttributeInfo
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a1a = new MBeanAttributeInfo("thing", "java.foo.bar", "an attribute",
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true, true, false),
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a1b = new MBeanAttributeInfo("thing", "java.foo.bar", "an attribute",
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true, true, false),
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a2a = new MBeanAttributeInfo("splob", "java.foo.bar", "an attribute",
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true, true, false),
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a2b = new MBeanAttributeInfo(a2a.getName(), a2a.getType(),
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a2a.getDescription(), a2a.isReadable(),
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a2a.isWritable(), a2a.isIs()),
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a3 = new MBeanAttributeInfo("splob", "java.foo.bar", "a whatsit",
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true, true, false),
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a4 = new MBeanAttributeInfo("splob", "java.foo.bar", "a whatsit",
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false, true, false),
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a5a = newMBeanAttributeInfo("a", "an attribute", getA, setA),
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a5b = new MBeanAttributeInfo("a", "int", "an attribute",
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true, true, false),
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a6a = newMBeanAttributeInfo("a", "an attribute", getA, null),
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a6b = new MBeanAttributeInfo("a", "int", "an attribute",
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true, false, false),
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a7a = newMBeanAttributeInfo("a", "an attribute", null, setA),
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a7b = new MBeanAttributeInfo("a", "int", "an attribute",
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false, true, false),
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a8a = newMBeanAttributeInfo("b", "an attribute", isB, setB),
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a8b = new MBeanAttributeInfo("b", "boolean", "an attribute",
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true, true, true),
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a9a = newMBeanAttributeInfo("b", "an attribute", isB, null),
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a9b = new MBeanAttributeInfo("b", "boolean", "an attribute",
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true, false, true);
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static final MBeanParameterInfo
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p1a = new MBeanParameterInfo("thing", "java.foo.bar", "a parameter"),
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p1b = new MBeanParameterInfo("thing", "java.foo.bar", "a parameter"),
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p2 = new MBeanParameterInfo("splob", "java.foo.bar", "a parameter"),
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p3 = new MBeanParameterInfo("thing", "java.foo.bax", "a parameter"),
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p4 = new MBeanParameterInfo("thing", "java.foo.bar", "a whatsit");
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static final MBeanConstructorInfo
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c1a = new MBeanConstructorInfo("a constructor", con1),
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c1b = new MBeanConstructorInfo(c1a.getName(), "a constructor",
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new MBeanParameterInfo[0]),
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c1c = new MBeanConstructorInfo(c1a.getName(), c1a.getDescription(),
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c1a.getSignature()),
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c1d = new MBeanConstructorInfo(c1a.getName(), c1a.getDescription(),
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null),
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c2a = new MBeanConstructorInfo("another constructor", con2),
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c2b = new MBeanConstructorInfo(c2a.getName(),
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c2a.getDescription(),
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c2a.getSignature()),
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c3a = new MBeanConstructorInfo("conName", "a constructor",
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new MBeanParameterInfo[] {p2, p3}),
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c3b = new MBeanConstructorInfo("conName", "a constructor",
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new MBeanParameterInfo[] {p2, p3}),
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c4 = new MBeanConstructorInfo("conName", "a constructor",
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new MBeanParameterInfo[] {p3, p2}),
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c5 = new MBeanConstructorInfo("otherName", "a constructor",
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new MBeanParameterInfo[] {p3, p2}),
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c6 = new MBeanConstructorInfo("otherName", "another constructor",
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new MBeanParameterInfo[] {p3, p2});
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static final MBeanOperationInfo
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o1a = new MBeanOperationInfo("an operation", run),
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o1b = new MBeanOperationInfo("an operation", run),
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o1c = new MBeanOperationInfo("run", "an operation",
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o1a.getSignature(), "void",
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o1a.getImpact()),
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o1d = new MBeanOperationInfo("run", "an operation",
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new MBeanParameterInfo[0], "void",
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o1a.getImpact()),
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o1e = new MBeanOperationInfo("run", "an operation",
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null, "void",
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o1a.getImpact()),
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o2a = new MBeanOperationInfo("another operation", blah),
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o2b = new MBeanOperationInfo(o2a.getName(), o2a.getDescription(),
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o2a.getSignature(), o2a.getReturnType(),
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o2a.getImpact());
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static final MBeanNotificationInfo
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n1a = new MBeanNotificationInfo(new String[] {"a.b", "c.d"},
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"x.y.z",
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"a notification info"),
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n1b = new MBeanNotificationInfo(new String[] {"a.b", "c.d"},
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"x.y.z",
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"a notification info"),
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n2a = new MBeanNotificationInfo(new String[] {"a.b", "c.d"},
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"x.y.z",
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"another notification info"),
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n2b = new MBeanNotificationInfo(n2a.getNotifTypes(),
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n2a.getName(),
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n2a.getDescription()),
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n3 = new MBeanNotificationInfo(new String[] {"a.b", "c.d"},
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"x.y.zz",
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"a notification info"),
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n4 = new MBeanNotificationInfo(new String[] {"c.d", "a.b"},
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"x.y.z",
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"a notification info");
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static final MBeanAttributeInfo[]
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xa1a = {a1a, a2a},
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xa1b = {a1b, a2b},
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xa2a = {a2a, a1a};
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static final MBeanConstructorInfo[]
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xc1a = {c1a, c2a},
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xc1b = {c1b, c2b},
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xc2a = {c2a, c1a};
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static final MBeanOperationInfo[]
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xo1a = {o1a, o2a},
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xo1b = {o1b, o2b},
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xo2a = {o2a, o1a};
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static final MBeanNotificationInfo[]
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xn1a = {n1a, n2a},
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xn1b = {n1b, n2b},
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xn2a = {n2a, n1a};
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static final MBeanInfo
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i1a = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn1a),
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i1b = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn1a),
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i1c = new MBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, xo1b, xn1b),
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i1d = new MutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, xo1b,
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xn1b),
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i1e = new ImmutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b,
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xo1b, xn1b),
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i1f = new ImmutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b,
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xo1b, xn1b),
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i2a = new MBeanInfo("a.b.cc", "an MBean info", xa1a, xc1a, xo1a, xn1a),
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i2b = new MBeanInfo(i2a.getClassName(), i2a.getDescription(),
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i2a.getAttributes(), i2a.getConstructors(),
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i2a.getOperations(), i2a.getNotifications()),
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i3 = new MBeanInfo("a.b.c", "another MBean info", xa1a, xc1a, xo1a,
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xn1a),
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i4 = new MBeanInfo("a.b.c", "an MBean info", xa2a, xc1a, xo1a, xn1a),
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i5 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc2a, xo1a, xn1a),
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i6 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo2a, xn1a),
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i7 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn2a);
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static final Object[][] equivalenceClasses = {
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{a1a, a1b}, {a2a, a2b}, {a3}, {a4}, {a5a, a5b}, {a6a, a6b}, {a7a, a7b},
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{a8a, a8b}, {a9a, a9b},
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{c1a, c1b, c1c, c1d}, {c2a, c2b}, {c3a, c3b}, {c4}, {c5}, {c6},
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{o1a, o1b, o1c, o1d, o1e}, {o2a, o2b},
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{p1a, p1b}, {p2}, {p3}, {p4},
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{n1a, n1b}, {n2a, n2b}, {n3}, {n4},
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{i1a, i1b, i1c, i1d, i1e, i1f}, {i2a, i2b}, {i3}, {i4}, {i5}, {i6},
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{i7},
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};
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private static class ImmutableMBeanInfo extends MBeanInfo {
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ImmutableMBeanInfo(String className,
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String description,
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MBeanAttributeInfo[] attributes,
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MBeanConstructorInfo[] constructors,
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MBeanOperationInfo[] operations,
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MBeanNotificationInfo[] notifications) {
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super(className, description, attributes, constructors, operations,
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notifications);
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}
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}
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/* This class checks that the MBeanInfo.equals() method really
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does call getClassName() etc rather than referring to its
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private fields. */
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private static class MutableMBeanInfo extends MBeanInfo {
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private final String className;
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private final String description;
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private final MBeanAttributeInfo[] attributes;
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private final MBeanOperationInfo[] operations;
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private final MBeanConstructorInfo[] constructors;
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private final MBeanNotificationInfo[] notifications;
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MutableMBeanInfo(String className,
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String description,
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MBeanAttributeInfo[] attributes,
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MBeanConstructorInfo[] constructors,
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MBeanOperationInfo[] operations,
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MBeanNotificationInfo[] notifications) {
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super("bogus", null, null, null, null, null);
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this.className = className;
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this.description = description;
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this.attributes = attributes;
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this.constructors = constructors;
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this.operations = operations;
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this.notifications = notifications;
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}
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public String getClassName() {
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return className;
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}
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public String getDescription() {
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return description;
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}
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public MBeanAttributeInfo[] getAttributes() {
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return attributes;
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}
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public MBeanOperationInfo[] getOperations() {
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return operations;
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}
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public MBeanConstructorInfo[] getConstructors() {
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return constructors;
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}
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public MBeanNotificationInfo[] getNotifications() {
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return notifications;
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}
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}
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private static boolean checkEquals(String what, Object[][] equivs) {
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boolean ok = true;
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/* The equivs array is an array of equivalence classes. The members
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of each equivalence class must be equal among themselves.
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Each member of each equivalence class must be different from
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each member of each other equivalence class. */
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for (int ei = 0; ei < equivs.length; ei++) {
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Object[] ec1 = equivs[ei];
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ok &= checkSame(what + " equivalence class " + ei, ec1);
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for (int ej = 0; ej < equivs.length; ej++) {
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if (ei == ej)
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continue;
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Object[] ec2 = equivs[ej];
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ok &= checkDifferent(what + " equivalence classes " +
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ei + " and " + ej, ec1, ec2);
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}
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}
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if (ok)
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System.out.println("equals test for " + what + " passed");
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return ok;
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}
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/* We could simplify this test to compare every element with every
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other and choose whether they are supposed to be the same based
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on whether they are in the same equivalence class. A bit
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simpler, but so what. */
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private static boolean checkSame(String what, Object[] equiv) {
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boolean ok = true;
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for (int i = 0; i < equiv.length; i++) {
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final Object o1 = equiv[i];
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for (int j = 0; j < equiv.length; j++) {
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final Object o2 = equiv[j];
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if (!o1.equals(o2)) {
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System.out.println("equals test: " + what +
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": !obj[" + i +
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"].equals(obj[" + j + "])");
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System.out.println("..." + o1 + " " + o2);
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ok = false;
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}
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if (o1.hashCode() != o2.hashCode()) {
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System.out.println("equals test: " + what +
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": obj[" + i +
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"].hashCode() != obj[" + j +
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"].hashCode()");
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System.out.println("..." + o1 + " " + o2);
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ok = false;
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}
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}
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}
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return ok;
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}
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private static boolean checkDifferent(String what, Object[] equiv1,
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Object[] equiv2) {
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boolean ok = true;
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for (int i = 0; i < equiv1.length; i++) {
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final Object o1 = equiv1[i];
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for (int j = 0; j < equiv2.length; j++) {
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final Object o2 = equiv2[j];
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if (o1.equals(o2)) {
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System.out.println("equals test " + what + ": obj[" +
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i + "].equals(obj[" + j + "])");
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System.out.println("..." + o1 + " " + o2);
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ok = false;
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}
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}
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}
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return ok;
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}
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public static void main(String[] args) throws Exception {
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boolean ok = true;
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ok &= checkEquals("equivalence", equivalenceClasses);
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if (ok) {
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System.out.println("all tests passed");
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} else {
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System.out.println("at least one test failed");
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System.exit(1);
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}
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}
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}
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