src/share/classes/java/beans/MetaData.java

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@@ -54,10 +54,12 @@
 import javax.swing.border.MatteBorder;
 import javax.swing.plaf.ColorUIResource;
 
 import sun.swing.PrintColorUIResource;
 
+import java.util.Objects;
+
 /*
  * Like the <code>Intropector</code>, the <code>MetaData</code> class
  * contains <em>meta</em> objects that describe the way
  * classes should express their state in terms of their
  * own public APIs.

@@ -132,11 +134,11 @@
             Expression newGetExp = new Expression(newInstance, "get", new Object[]{index});
             try {
                 Object oldValue = oldGetExp.getValue();
                 Object newValue = newGetExp.getValue();
                 out.writeExpression(oldGetExp);
-                if (!MetaData.equals(newValue, out.get(oldValue))) {
+                if (!Objects.equals(newValue, out.get(oldValue))) {
                     // System.out.println("Not equal: " + newGetExp + " != " + actualGetExp);
                     // invokeStatement(Array.class, "set", new Object[]{oldInstance, index, oldValue}, out);
                     DefaultPersistenceDelegate.invokeStatement(oldInstance, "set", new Object[]{index, oldValue}, out);
                 }
             }

@@ -633,11 +635,11 @@
             Expression newGetExp = new Expression(newInstance, "get", new Object[]{index});
             try {
                 Object oldValue = oldGetExp.getValue();
                 Object newValue = newGetExp.getValue();
                 out.writeExpression(oldGetExp);
-                if (!MetaData.equals(newValue, out.get(oldValue))) {
+                if (!Objects.equals(newValue, out.get(oldValue))) {
                     invokeStatement(oldInstance, "set", new Object[]{index, oldValue}, out);
                 }
             }
             catch (Exception e) {
                 out.getExceptionListener().exceptionThrown(e);

@@ -673,11 +675,11 @@
             Expression newGetExp = new Expression(newInstance, "get", new Object[]{oldKey});
             try {
                 Object oldValue = oldGetExp.getValue();
                 Object newValue = newGetExp.getValue();
                 out.writeExpression(oldGetExp);
-                if (!MetaData.equals(newValue, out.get(oldValue))) {
+                if (!Objects.equals(newValue, out.get(oldValue))) {
                     invokeStatement(oldInstance, "put", new Object[]{oldKey, oldValue}, out);
                 } else if ((newValue == null) && !newMap.containsKey(oldKey)) {
                     // put oldValue(=null?) if oldKey is absent in newMap
                     invokeStatement(oldInstance, "put", new Object[]{oldKey, oldValue}, out);
                 }

@@ -897,21 +899,21 @@
         // null to defined values after the Windows are made visible -
         // special case them for now.
         if (!(oldInstance instanceof java.awt.Window)) {
             Object oldBackground = c.isBackgroundSet() ? c.getBackground() : null;
             Object newBackground = c2.isBackgroundSet() ? c2.getBackground() : null;
-            if (!MetaData.equals(oldBackground, newBackground)) {
+            if (!Objects.equals(oldBackground, newBackground)) {
                 invokeStatement(oldInstance, "setBackground", new Object[] { oldBackground }, out);
             }
             Object oldForeground = c.isForegroundSet() ? c.getForeground() : null;
             Object newForeground = c2.isForegroundSet() ? c2.getForeground() : null;
-            if (!MetaData.equals(oldForeground, newForeground)) {
+            if (!Objects.equals(oldForeground, newForeground)) {
                 invokeStatement(oldInstance, "setForeground", new Object[] { oldForeground }, out);
             }
             Object oldFont = c.isFontSet() ? c.getFont() : null;
             Object newFont = c2.isFontSet() ? c2.getFont() : null;
-            if (!MetaData.equals(oldFont, newFont)) {
+            if (!Objects.equals(oldFont, newFont)) {
                 invokeStatement(oldInstance, "setFont", new Object[] { oldFont }, out);
             }
         }
 
         // Bounds

@@ -1304,14 +1306,10 @@
 
         internalPersistenceDelegates.put("java.util.JumboEnumSet", new java_util_EnumSet_PersistenceDelegate());
         internalPersistenceDelegates.put("java.util.RegularEnumSet", new java_util_EnumSet_PersistenceDelegate());
     }
 
-    /*pp*/ static boolean equals(Object o1, Object o2) {
-        return (o1 == null) ? (o2 == null) : o1.equals(o2);
-    }
-
     public synchronized static PersistenceDelegate getPersistenceDelegate(Class type) {
         if (type == null) {
             return nullPersistenceDelegate;
         }
         if (Enum.class.isAssignableFrom(type)) {