7189112: java.beans.Introspector misses write methods

Reviewed-by: rupashka

src/share/classes/java/beans/PropertyDescriptor.java

@@ -657,7 +657,7 @@ public class PropertyDescriptor extends FeatureDescriptor {
                     throw new IntrospectionException("bad write method arg count: "
                                                      + writeMethod);
                 }
-                if (propertyType != null && propertyType != params[0]) {
+                if (propertyType != null && !params[0].isAssignableFrom(propertyType)) {
                     throw new IntrospectionException("type mismatch between read and write methods");
                 }
                 propertyType = params[0];

test/java/beans/Introspector/Test7189112.java

+/*
+ * Copyright (c) 2012, 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 7189112
+ * @summary Tests overridden getter
+ * @author Sergey Malenkov
+ */
+
+import java.beans.IntrospectionException;
+import java.beans.Introspector;
+import java.beans.PropertyDescriptor;
+
+public class Test7189112 {
+
+    public static void main(String[] args) throws IntrospectionException {
+        for (PropertyDescriptor pd : Introspector.getBeanInfo(MyBean.class).getPropertyDescriptors()) {
+            if (pd.getName().equals("value") && (null == pd.getWriteMethod())) {
+                throw new Error("The property setter is not found");
+            }
+        }
+    }
+
+    public static class BaseBean {
+
+        private Object value;
+
+        public Object getValue() {
+            return this.value;
+        }
+
+        public void setValue(Object value) {
+            this.value = value;
+        }
+    }
+
+    public static class MyBean extends BaseBean {
+        @Override
+        public String getValue() {
+            return (String) super.getValue();
+        }
+    }
+}