| /* |
| * Copyright (c) 2003, 2015, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 4719923 |
| * @summary Test that MBeanInfo.equals works even for mutable subclasses |
| * @author Eamonn McManus |
| * |
| * @run clean MBeanInfoEqualsTest |
| * @run build MBeanInfoEqualsTest |
| * @run main MBeanInfoEqualsTest |
| */ |
| |
| /* Test that MBeanInfo and its referenced classes implement the equals |
| and hashCode methods correctly. These classes include some magic |
| to improve performance based on the classes' immutability. The |
| logic checks that any subclasses encountered remain immutable, and |
| falls back on less performant code if not. */ |
| |
| import javax.management.*; |
| import java.lang.reflect.*; |
| |
| public class MBeanInfoEqualsTest { |
| // Class just used for reflection |
| private static class Toy { |
| public Toy() {} |
| public Toy(int a, String b) {} |
| public int getA() {return 0;} |
| public void setA(int a) {} |
| public boolean isB() {return false;} |
| public void setB(boolean b) {} |
| public void run() {} |
| public void blah(int a, String b) {} |
| } |
| |
| static final Class toy = Toy.class; |
| static final Constructor con1, con2; |
| static final Method getA, setA, isB, setB, run, blah; |
| static { |
| try { |
| con1 = toy.getConstructor(new Class[] {}); |
| con2 = toy.getConstructor(new Class[] {Integer.TYPE, |
| String.class}); |
| getA = toy.getMethod("getA", new Class[] {}); |
| setA = toy.getMethod("setA", new Class[] {Integer.TYPE}); |
| isB = toy.getMethod("isB", new Class[] {}); |
| setB = toy.getMethod("setB", new Class[] {Boolean.TYPE}); |
| run = toy.getMethod("run", new Class[] {}); |
| blah = toy.getMethod("blah", new Class[] {Integer.TYPE, |
| String.class}); |
| } catch (Exception e) { |
| throw new Error(e.getMessage()); |
| } |
| } |
| |
| private static final MBeanAttributeInfo |
| newMBeanAttributeInfo(String name, String description, |
| Method getter, Method setter) { |
| try { |
| return new MBeanAttributeInfo(name, description, getter, setter); |
| } catch (IntrospectionException e) { |
| throw new Error(e.getMessage()); |
| } |
| } |
| |
| static final MBeanAttributeInfo |
| a1a = new MBeanAttributeInfo("thing", "java.foo.bar", "an attribute", |
| true, true, false), |
| a1b = new MBeanAttributeInfo("thing", "java.foo.bar", "an attribute", |
| true, true, false), |
| a2a = new MBeanAttributeInfo("splob", "java.foo.bar", "an attribute", |
| true, true, false), |
| a2b = new MBeanAttributeInfo(a2a.getName(), a2a.getType(), |
| a2a.getDescription(), a2a.isReadable(), |
| a2a.isWritable(), a2a.isIs()), |
| a3 = new MBeanAttributeInfo("splob", "java.foo.bar", "a whatsit", |
| true, true, false), |
| a4 = new MBeanAttributeInfo("splob", "java.foo.bar", "a whatsit", |
| false, true, false), |
| a5a = newMBeanAttributeInfo("a", "an attribute", getA, setA), |
| a5b = new MBeanAttributeInfo("a", "int", "an attribute", |
| true, true, false), |
| a6a = newMBeanAttributeInfo("a", "an attribute", getA, null), |
| a6b = new MBeanAttributeInfo("a", "int", "an attribute", |
| true, false, false), |
| a7a = newMBeanAttributeInfo("a", "an attribute", null, setA), |
| a7b = new MBeanAttributeInfo("a", "int", "an attribute", |
| false, true, false), |
| a8a = newMBeanAttributeInfo("b", "an attribute", isB, setB), |
| a8b = new MBeanAttributeInfo("b", "boolean", "an attribute", |
| true, true, true), |
| a9a = newMBeanAttributeInfo("b", "an attribute", isB, null), |
| a9b = new MBeanAttributeInfo("b", "boolean", "an attribute", |
| true, false, true); |
| |
| static final MBeanParameterInfo |
| p1a = new MBeanParameterInfo("thing", "java.foo.bar", "a parameter"), |
| p1b = new MBeanParameterInfo("thing", "java.foo.bar", "a parameter"), |
| p2 = new MBeanParameterInfo("splob", "java.foo.bar", "a parameter"), |
| p3 = new MBeanParameterInfo("thing", "java.foo.bax", "a parameter"), |
| p4 = new MBeanParameterInfo("thing", "java.foo.bar", "a whatsit"); |
| |
| static final MBeanConstructorInfo |
| c1a = new MBeanConstructorInfo("a constructor", con1), |
| c1b = new MBeanConstructorInfo(c1a.getName(), "a constructor", |
| new MBeanParameterInfo[0]), |
| c1c = new MBeanConstructorInfo(c1a.getName(), c1a.getDescription(), |
| c1a.getSignature()), |
| c1d = new MBeanConstructorInfo(c1a.getName(), c1a.getDescription(), |
| null), |
| c2a = new MBeanConstructorInfo("another constructor", con2), |
| c2b = new MBeanConstructorInfo(c2a.getName(), |
| c2a.getDescription(), |
| c2a.getSignature()), |
| c3a = new MBeanConstructorInfo("conName", "a constructor", |
| new MBeanParameterInfo[] {p2, p3}), |
| c3b = new MBeanConstructorInfo("conName", "a constructor", |
| new MBeanParameterInfo[] {p2, p3}), |
| c4 = new MBeanConstructorInfo("conName", "a constructor", |
| new MBeanParameterInfo[] {p3, p2}), |
| c5 = new MBeanConstructorInfo("otherName", "a constructor", |
| new MBeanParameterInfo[] {p3, p2}), |
| c6 = new MBeanConstructorInfo("otherName", "another constructor", |
| new MBeanParameterInfo[] {p3, p2}); |
| |
| static final MBeanOperationInfo |
| o1a = new MBeanOperationInfo("an operation", run), |
| o1b = new MBeanOperationInfo("an operation", run), |
| o1c = new MBeanOperationInfo("run", "an operation", |
| o1a.getSignature(), "void", |
| o1a.getImpact()), |
| o1d = new MBeanOperationInfo("run", "an operation", |
| new MBeanParameterInfo[0], "void", |
| o1a.getImpact()), |
| o1e = new MBeanOperationInfo("run", "an operation", |
| null, "void", |
| o1a.getImpact()), |
| o2a = new MBeanOperationInfo("another operation", blah), |
| o2b = new MBeanOperationInfo(o2a.getName(), o2a.getDescription(), |
| o2a.getSignature(), o2a.getReturnType(), |
| o2a.getImpact()); |
| |
| static final MBeanNotificationInfo |
| n1a = new MBeanNotificationInfo(new String[] {"a.b", "c.d"}, |
| "x.y.z", |
| "a notification info"), |
| n1b = new MBeanNotificationInfo(new String[] {"a.b", "c.d"}, |
| "x.y.z", |
| "a notification info"), |
| n2a = new MBeanNotificationInfo(new String[] {"a.b", "c.d"}, |
| "x.y.z", |
| "another notification info"), |
| n2b = new MBeanNotificationInfo(n2a.getNotifTypes(), |
| n2a.getName(), |
| n2a.getDescription()), |
| n3 = new MBeanNotificationInfo(new String[] {"a.b", "c.d"}, |
| "x.y.zz", |
| "a notification info"), |
| n4 = new MBeanNotificationInfo(new String[] {"c.d", "a.b"}, |
| "x.y.z", |
| "a notification info"); |
| |
| static final MBeanAttributeInfo[] |
| xa1a = {a1a, a2a}, |
| xa1b = {a1b, a2b}, |
| xa2a = {a2a, a1a}; |
| |
| static final MBeanConstructorInfo[] |
| xc1a = {c1a, c2a}, |
| xc1b = {c1b, c2b}, |
| xc2a = {c2a, c1a}; |
| |
| static final MBeanOperationInfo[] |
| xo1a = {o1a, o2a}, |
| xo1b = {o1b, o2b}, |
| xo2a = {o2a, o1a}; |
| |
| static final MBeanNotificationInfo[] |
| xn1a = {n1a, n2a}, |
| xn1b = {n1b, n2b}, |
| xn2a = {n2a, n1a}; |
| |
| static final MBeanInfo |
| i1a = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn1a), |
| i1b = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn1a), |
| i1c = new MBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, xo1b, xn1b), |
| i1d = new MutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, xo1b, |
| xn1b), |
| i1e = new ImmutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, |
| xo1b, xn1b), |
| i1f = new ImmutableMBeanInfo("a.b.c", "an MBean info", xa1b, xc1b, |
| xo1b, xn1b), |
| i2a = new MBeanInfo("a.b.cc", "an MBean info", xa1a, xc1a, xo1a, xn1a), |
| i2b = new MBeanInfo(i2a.getClassName(), i2a.getDescription(), |
| i2a.getAttributes(), i2a.getConstructors(), |
| i2a.getOperations(), i2a.getNotifications()), |
| i3 = new MBeanInfo("a.b.c", "another MBean info", xa1a, xc1a, xo1a, |
| xn1a), |
| i4 = new MBeanInfo("a.b.c", "an MBean info", xa2a, xc1a, xo1a, xn1a), |
| i5 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc2a, xo1a, xn1a), |
| i6 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo2a, xn1a), |
| i7 = new MBeanInfo("a.b.c", "an MBean info", xa1a, xc1a, xo1a, xn2a); |
| |
| static final Object[][] equivalenceClasses = { |
| {a1a, a1b}, {a2a, a2b}, {a3}, {a4}, {a5a, a5b}, {a6a, a6b}, {a7a, a7b}, |
| {a8a, a8b}, {a9a, a9b}, |
| {c1a, c1b, c1c, c1d}, {c2a, c2b}, {c3a, c3b}, {c4}, {c5}, {c6}, |
| {o1a, o1b, o1c, o1d, o1e}, {o2a, o2b}, |
| {p1a, p1b}, {p2}, {p3}, {p4}, |
| {n1a, n1b}, {n2a, n2b}, {n3}, {n4}, |
| {i1a, i1b, i1c, i1d, i1e, i1f}, {i2a, i2b}, {i3}, {i4}, {i5}, {i6}, |
| {i7}, |
| }; |
| |
| private static class ImmutableMBeanInfo extends MBeanInfo { |
| ImmutableMBeanInfo(String className, |
| String description, |
| MBeanAttributeInfo[] attributes, |
| MBeanConstructorInfo[] constructors, |
| MBeanOperationInfo[] operations, |
| MBeanNotificationInfo[] notifications) { |
| super(className, description, attributes, constructors, operations, |
| notifications); |
| } |
| } |
| |
| /* This class checks that the MBeanInfo.equals() method really |
| does call getClassName() etc rather than referring to its |
| private fields. */ |
| private static class MutableMBeanInfo extends MBeanInfo { |
| private final String className; |
| private final String description; |
| private final MBeanAttributeInfo[] attributes; |
| private final MBeanOperationInfo[] operations; |
| private final MBeanConstructorInfo[] constructors; |
| private final MBeanNotificationInfo[] notifications; |
| |
| MutableMBeanInfo(String className, |
| String description, |
| MBeanAttributeInfo[] attributes, |
| MBeanConstructorInfo[] constructors, |
| MBeanOperationInfo[] operations, |
| MBeanNotificationInfo[] notifications) { |
| super("bogus", null, null, null, null, null); |
| this.className = className; |
| this.description = description; |
| this.attributes = attributes; |
| this.constructors = constructors; |
| this.operations = operations; |
| this.notifications = notifications; |
| } |
| |
| public String getClassName() { |
| return className; |
| } |
| |
| public String getDescription() { |
| return description; |
| } |
| |
| public MBeanAttributeInfo[] getAttributes() { |
| return attributes; |
| } |
| |
| public MBeanOperationInfo[] getOperations() { |
| return operations; |
| } |
| |
| public MBeanConstructorInfo[] getConstructors() { |
| return constructors; |
| } |
| |
| public MBeanNotificationInfo[] getNotifications() { |
| return notifications; |
| } |
| } |
| |
| private static boolean checkEquals(String what, Object[][] equivs) { |
| boolean ok = true; |
| /* The equivs array is an array of equivalence classes. The members |
| of each equivalence class must be equal among themselves. |
| Each member of each equivalence class must be different from |
| each member of each other equivalence class. */ |
| for (int ei = 0; ei < equivs.length; ei++) { |
| Object[] ec1 = equivs[ei]; |
| ok &= checkSame(what + " equivalence class " + ei, ec1); |
| for (int ej = 0; ej < equivs.length; ej++) { |
| if (ei == ej) |
| continue; |
| Object[] ec2 = equivs[ej]; |
| ok &= checkDifferent(what + " equivalence classes " + |
| ei + " and " + ej, ec1, ec2); |
| } |
| } |
| if (ok) |
| System.out.println("equals test for " + what + " passed"); |
| return ok; |
| } |
| |
| /* We could simplify this test to compare every element with every |
| other and choose whether they are supposed to be the same based |
| on whether they are in the same equivalence class. A bit |
| simpler, but so what. */ |
| |
| private static boolean checkSame(String what, Object[] equiv) { |
| boolean ok = true; |
| for (int i = 0; i < equiv.length; i++) { |
| final Object o1 = equiv[i]; |
| for (int j = 0; j < equiv.length; j++) { |
| final Object o2 = equiv[j]; |
| if (!o1.equals(o2)) { |
| System.out.println("equals test: " + what + |
| ": !obj[" + i + |
| "].equals(obj[" + j + "])"); |
| System.out.println("..." + o1 + " " + o2); |
| ok = false; |
| } |
| if (o1.hashCode() != o2.hashCode()) { |
| System.out.println("equals test: " + what + |
| ": obj[" + i + |
| "].hashCode() != obj[" + j + |
| "].hashCode()"); |
| System.out.println("..." + o1 + " " + o2); |
| ok = false; |
| } |
| } |
| } |
| return ok; |
| } |
| |
| private static boolean checkDifferent(String what, Object[] equiv1, |
| Object[] equiv2) { |
| boolean ok = true; |
| for (int i = 0; i < equiv1.length; i++) { |
| final Object o1 = equiv1[i]; |
| for (int j = 0; j < equiv2.length; j++) { |
| final Object o2 = equiv2[j]; |
| if (o1.equals(o2)) { |
| System.out.println("equals test " + what + ": obj[" + |
| i + "].equals(obj[" + j + "])"); |
| System.out.println("..." + o1 + " " + o2); |
| ok = false; |
| } |
| } |
| } |
| return ok; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| boolean ok = true; |
| ok &= checkEquals("equivalence", equivalenceClasses); |
| if (ok) { |
| System.out.println("all tests passed"); |
| } else { |
| System.out.println("at least one test failed"); |
| System.exit(1); |
| } |
| } |
| } |