| /* |
| * Copyright (c) 2007, 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 |
| * @summary Tests com.sun.beans.TypeResolver |
| * @author Eamonn McManus |
| * @modules java.base/sun.reflect.generics.reflectiveObjects |
| * java.desktop/com.sun.beans |
| */ |
| |
| import com.sun.beans.TypeResolver; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.AnnotatedType; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.GenericDeclaration; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Type; |
| import java.lang.reflect.TypeVariable; |
| import java.lang.reflect.WildcardType; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import sun.reflect.generics.reflectiveObjects.GenericArrayTypeImpl; |
| import sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl; |
| |
| public class TestTypeResolver { |
| static final List<Class<?>> failedCases = new ArrayList<Class<?>>(); |
| |
| public static void main(String[] args) throws Exception { |
| test(TestTypeResolver.class); |
| if (failedCases.isEmpty()) |
| System.out.println("TEST PASSED"); |
| else { |
| System.out.println("TEST FAILED: failed cases: " + failedCases); |
| throw new Error("TEST FAILED"); |
| } |
| } |
| |
| private static void test(Class<?> c) throws Exception { |
| /* Every public nested class represents a test. In each case, either |
| * the class contains further nested classes, in which case we |
| * call this method recursively; or it declares or inherits a |
| * method called getThing() and it declares a static field |
| * called "expect" which |
| * is the Type of that method's return value. The test consists |
| * of checking that the value returned by |
| * TypeResolver.resolveInClass is indeed this Type. |
| */ |
| System.out.println("Test " + c); |
| Class<?>[] nested = c.getClasses(); |
| Arrays.sort(nested, classNameComparator); |
| for (Class<?> n : nested) |
| test(n); |
| final Method m; |
| try { |
| m = c.getMethod("getThing"); |
| } catch (NoSuchMethodException e) { |
| if (nested.length == 0) { |
| System.out.println( |
| "TEST ERROR: class " + c.getName() + " has neither " + |
| "nested classes nor getThing() method"); |
| failedCases.add(c); |
| } |
| return; |
| } |
| Object expect = null; |
| try { |
| Field f = c.getDeclaredField("expect"); |
| expect = f.get(null); |
| } catch (NoSuchFieldException e) { |
| Class<?> outer = c.getDeclaringClass(); |
| if (outer != null) { |
| try { |
| Field f = outer.getDeclaredField("expect" + c.getSimpleName()); |
| expect = f.get(null); |
| } catch (NoSuchFieldException e1) { |
| } |
| } |
| } |
| if (expect == null) { |
| System.out.println( |
| "TEST ERROR: class " + c.getName() + " has getThing() method " + |
| "but not expect field"); |
| failedCases.add(c); |
| return; |
| } |
| Type t = m.getGenericReturnType(); |
| // t = FixType.fixType(t, c); |
| t = TypeResolver.resolveInClass(c, t); |
| System.out.print("..." + t); |
| // check expected value, and incidentally equals method defined |
| // by private implementations of the various Type interfaces |
| if (expect.equals(t) && t.equals(expect)) |
| System.out.println(", as expected"); |
| else if ((expect.equals(t) || t.equals(expect)) && expect.toString().equals(t.toString())) |
| System.out.println(", as workaround of the 8023301 bug"); |
| else { |
| System.out.println(" BUT SHOULD BE " + expect); |
| failedCases.add(c); |
| } |
| } |
| |
| private static class ClassNameComparator implements Comparator<Class<?>> { |
| public int compare(Class<?> a, Class<?> b) { |
| return a.getName().compareTo(b.getName()); |
| } |
| } |
| |
| private static final Comparator<Class<?>> classNameComparator = |
| new ClassNameComparator(); |
| |
| private static abstract class TypeVariableImpl<D extends GenericDeclaration> |
| implements TypeVariable<D> { |
| private final String name; |
| private final D gd; |
| private final Type[] bounds; |
| |
| TypeVariableImpl(String name, D gd, Type... bounds) { |
| this.name = name; |
| this.gd = gd; |
| if (bounds.length == 0) |
| bounds = new Type[] {Object.class}; |
| this.bounds = bounds.clone(); |
| } |
| |
| public Type[] getBounds() { |
| return bounds.clone(); |
| } |
| |
| public D getGenericDeclaration() { |
| return gd; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| |
| public boolean equals(Object o) { |
| if (!(o instanceof TypeVariable)) |
| return false; |
| TypeVariable tv = (TypeVariable) o; |
| return equal(name, tv.getName()) && |
| equal(gd, tv.getGenericDeclaration()) && |
| Arrays.equals(bounds, tv.getBounds()); |
| } |
| |
| public int hashCode() { |
| return hash(name) ^ hash(gd) ^ Arrays.hashCode(bounds); |
| } |
| |
| public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) { |
| return false; // not used |
| } |
| |
| public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| public <T extends Annotation> T[] getAnnotations(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| public Annotation[] getAnnotations() { |
| return null; // not used |
| } |
| |
| public <T extends Annotation> T getDeclaredAnnotation(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| public <T extends Annotation> T[] getDeclaredAnnotations(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| public Annotation[] getDeclaredAnnotations() { |
| return null; // not used |
| } |
| |
| public AnnotatedType[] getAnnotatedBounds() { |
| return null; // not used |
| } |
| |
| public <T extends Annotation> T[] getAnnotationsByType(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| public <T extends Annotation> T[] getDeclaredAnnotationsByType(Class<T> annotationClass) { |
| return null; // not used |
| } |
| |
| } |
| |
| private static class ClassTypeVariable extends TypeVariableImpl<Class<?>> { |
| ClassTypeVariable(String name, Class<?> gd, Type... bounds) { |
| super(name, gd, bounds); |
| } |
| } |
| |
| private static class MethodTypeVariable extends TypeVariableImpl<Method> { |
| MethodTypeVariable(String name, Method gd, Type... bounds) { |
| super(name, gd, bounds); |
| } |
| } |
| |
| private static class WildcardTypeImpl implements WildcardType { |
| private final Type[] upperBounds; |
| private final Type[] lowerBounds; |
| |
| WildcardTypeImpl(Type[] upperBounds, Type[] lowerBounds) { |
| if (upperBounds == null || upperBounds.length == 0) |
| upperBounds = new Type[] {Object.class}; |
| if (lowerBounds == null) |
| lowerBounds = new Type[0]; |
| this.upperBounds = upperBounds.clone(); |
| this.lowerBounds = lowerBounds.clone(); |
| } |
| |
| public Type[] getUpperBounds() { |
| return upperBounds.clone(); |
| } |
| |
| public Type[] getLowerBounds() { |
| return lowerBounds.clone(); |
| } |
| |
| public boolean equals(Object o) { |
| if (o instanceof WildcardType) { |
| WildcardType wt = (WildcardType) o; |
| return Arrays.equals(upperBounds, wt.getUpperBounds()) && |
| Arrays.equals(lowerBounds, wt.getLowerBounds()); |
| } else |
| return false; |
| } |
| |
| public int hashCode() { |
| return Arrays.hashCode(upperBounds) ^ Arrays.hashCode(lowerBounds); |
| } |
| |
| public String toString() { |
| StringBuilder sb = new StringBuilder("?"); |
| if (upperBounds.length > 1 || upperBounds[0] != Object.class) { |
| sb.append(" extends"); |
| appendBounds(sb, upperBounds); |
| } |
| if (lowerBounds.length > 0) { |
| sb.append(" super"); |
| appendBounds(sb, lowerBounds); |
| } |
| return sb.toString(); |
| } |
| |
| private static void appendBounds(StringBuilder sb, Type[] bounds) { |
| boolean and = false; |
| for (Type bound : bounds) { |
| if (and) |
| sb.append(" &"); |
| sb.append(" "); |
| if (bound instanceof Class) |
| sb.append(((Class<?>) bound).getName()); |
| else |
| sb.append(bound); |
| and = true; |
| } |
| } |
| } |
| |
| static boolean equal(Object x, Object y) { |
| if (x == y) |
| return true; |
| if (x == null || y == null) |
| return false; |
| return x.equals(y); |
| } |
| |
| static int hash(Object x) { |
| return (x == null) ? null : x.hashCode(); |
| } |
| |
| |
| public static class Outer<T> { |
| public class Inner { |
| public T getThing() { |
| return null; |
| } |
| } |
| |
| static final Type expectInner = new ClassTypeVariable("T", Outer.class); |
| } |
| |
| public static class Super<T> { |
| static final Type expect = new ClassTypeVariable("T", Super.class); |
| |
| public T getThing() { |
| return null; |
| } |
| } |
| |
| public static class Int extends Super<Integer> { |
| static final Type expect = Integer.class; |
| } |
| |
| public static class IntOverride extends Int { |
| static final Type expect = Integer.class; |
| |
| public Integer getThing() { |
| return null; |
| } |
| } |
| |
| public static class Mid<X> extends Super<X> { |
| static final Type expect = new ClassTypeVariable("X", Mid.class); |
| } |
| |
| public static class Str extends Mid<String> { |
| static final Type expect = String.class; |
| } |
| |
| public static class ListInt extends Super<List<Integer>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {Integer.class}, null); |
| } |
| |
| public static class ListIntSub extends ListInt { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {Integer.class}, null); |
| |
| public List<Integer> getThing() { |
| return null; |
| } |
| } |
| |
| public static class ListU<U> extends Super<List<U>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {new ClassTypeVariable("U", ListU.class)}, null); |
| } |
| |
| public static class ListUInt extends ListU<Integer> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {Integer.class}, null); |
| } |
| |
| public static class ListUSub<V> extends ListU<V> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {new ClassTypeVariable("V", ListUSub.class)}, null); |
| |
| public List<V> getThing() { |
| return null; |
| } |
| } |
| |
| public static class ListUSubInt extends ListUSub<Integer> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {Integer.class}, null); |
| } |
| |
| public static class TwoParams<S, T> extends Super<S> { |
| static final Type expect = new ClassTypeVariable("S", TwoParams.class); |
| } |
| |
| public static class TwoParamsSub<T> extends TwoParams<T, Integer> { |
| static final Type expect = new ClassTypeVariable("T", TwoParamsSub.class); |
| } |
| |
| public static class TwoParamsSubSub extends TwoParamsSub<String> { |
| static final Type expect = String.class; |
| } |
| |
| public static interface Intf<T> { |
| static final Type expect = new ClassTypeVariable("T", Intf.class); |
| |
| public T getThing(); |
| } |
| |
| public static abstract class Impl implements Intf<String> { |
| static final Type expect = String.class; |
| } |
| |
| public static class Impl2 extends Super<String> implements Intf<String> { |
| static final Type expect = String.class; |
| } |
| |
| public static class Bound<T extends Number> extends Super<T> { |
| static final Type expect = new ClassTypeVariable("T", Bound.class, Number.class); |
| } |
| |
| public static class BoundInt extends Bound<Integer> { |
| static final Type expect = Integer.class; |
| } |
| |
| public static class RawBound extends Bound { |
| static final Type expect = Number.class; |
| } |
| |
| public static class RawBoundInt extends BoundInt { |
| static final Type expect = Integer.class; |
| } |
| |
| public static class MethodParam<T> { |
| private static final Method m; |
| |
| static { |
| try { |
| m = MethodParam.class.getMethod("getThing"); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| |
| static final Type expect = new MethodTypeVariable("T", m); |
| |
| public <T> T getThing() { |
| return null; |
| } |
| } |
| |
| public static class Raw extends Super { |
| static final Type expect = Object.class; |
| } |
| |
| public static class RawSub extends Raw { |
| static final Type expect = Object.class; |
| } |
| |
| public static class SimpleArray extends Super<String[]> { |
| static final Type expect = String[].class; |
| } |
| |
| public static class GenericArray extends Super<List<String>[]> { |
| static final Type expect = GenericArrayTypeImpl.make( |
| ParameterizedTypeImpl.make(List.class, new Type[] {String.class}, null)); |
| } |
| |
| public static class GenericArrayT<T> extends Super<T[]> { |
| static final Type expect = GenericArrayTypeImpl.make( |
| new ClassTypeVariable("T", GenericArrayT.class)); |
| } |
| |
| public static class GenericArrayTSub extends GenericArrayT<String[]> { |
| static final Type expect = String[][].class; |
| } |
| |
| public static class Wildcard extends Super<List<?>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, new Type[] {new WildcardTypeImpl(null, null)}, null); |
| } |
| |
| public static class WildcardT<T> extends Super<List<? extends T>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| new WildcardTypeImpl( |
| new Type[] {new ClassTypeVariable("T", WildcardT.class)}, |
| null)}, |
| null); |
| } |
| |
| public static class WildcardTSub extends WildcardT<Integer> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| new WildcardTypeImpl( |
| new Type[] {Integer.class}, |
| null)}, |
| null); |
| } |
| |
| public static class WildcardTSubSub<X> extends WildcardTSub { |
| // X is just so we can have a raw subclass |
| static final Type expect = WildcardTSub.expect; |
| } |
| |
| public static class RawWildcardTSubSub extends WildcardTSubSub { |
| static final Type expect = List.class; |
| } |
| |
| public static class WildcardTSuper<T> extends Super<List<? super T>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| new WildcardTypeImpl( |
| null, |
| new Type[] {new ClassTypeVariable("T", WildcardTSuper.class)})}, |
| null); |
| } |
| |
| public static class WildcardTSuperSub extends WildcardTSuper<Integer> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| new WildcardTypeImpl( |
| null, |
| new Type[] {Integer.class})}, |
| null); |
| } |
| |
| public static class SuperMap<K, V> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| Map.class, |
| new Type[] { |
| new ClassTypeVariable("K", SuperMap.class), |
| new ClassTypeVariable("V", SuperMap.class)}, |
| null); |
| |
| public Map<K, V> getThing() { |
| return null; |
| } |
| } |
| |
| public static class SubMap extends SuperMap<String, Integer> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| Map.class, |
| new Type[] {String.class, Integer.class}, |
| null); |
| } |
| |
| public static class ListListT<T> extends Super<List<List<T>>> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] {new ClassTypeVariable("T", ListListT.class)}, |
| null)}, |
| null); |
| } |
| |
| public static class ListListString extends ListListT<String> { |
| static final Type expect = ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] { |
| ParameterizedTypeImpl.make( |
| List.class, |
| new Type[] {String.class}, |
| null)}, |
| null); |
| } |
| |
| public static class UExtendsT<T, U extends T> extends Super<U> { |
| static final Type expect = new ClassTypeVariable( |
| "U", UExtendsT.class, new ClassTypeVariable("T", UExtendsT.class)); |
| } |
| |
| public static class UExtendsTSub extends UExtendsT<Number, Integer> { |
| static final Type expect = Integer.class; |
| } |
| |
| public static class SelfRef<T extends SelfRef<T>> extends Super<T> { |
| static final Type expect = |
| SelfRef.class.getTypeParameters()[0]; |
| } |
| |
| public static class SelfRefSub extends SelfRef<SelfRefSub> { |
| static final Type expect = SelfRefSub.class; |
| } |
| } |