6380849: RFE: Automatic discovery of PersistanceDelegates

Reviewed-by: rupashka, alexp

src/share/classes/com/sun/beans/finder/BeanInfoFinder.java

+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package com.sun.beans.finder;
+
+import java.beans.BeanDescriptor;
+import java.beans.BeanInfo;
+import java.beans.MethodDescriptor;
+import java.beans.PropertyDescriptor;
+import java.lang.reflect.Method;
+
+/**
+ * This is utility class that provides functionality
+ * to find a {@link BeanInfo} for a JavaBean specified by its type.
+ *
+ * @since 1.7
+ *
+ * @author Sergey A. Malenkov
+ */
+public final class BeanInfoFinder
+        extends InstanceFinder<BeanInfo> {
+
+    private static final String DEFAULT = "sun.beans.infos";
+
+    public BeanInfoFinder() {
+        super(BeanInfo.class, true, "BeanInfo", DEFAULT);
+    }
+
+    private static boolean isValid(Class<?> type, Method method) {
+        return (method != null) && type.equals(method.getDeclaringClass());
+    }
+
+    @Override
+    protected BeanInfo instantiate(Class<?> type, String name) {
+        BeanInfo info = super.instantiate(type, name);
+        if (info != null) {
+            // make sure that the returned BeanInfo matches the class
+            BeanDescriptor bd = info.getBeanDescriptor();
+            if (bd != null) {
+                if (type.equals(bd.getBeanClass())) {
+                    return info;
+                }
+            }
+            else {
+                PropertyDescriptor[] pds = info.getPropertyDescriptors();
+                if (pds != null) {
+                    for (PropertyDescriptor pd : pds) {
+                        Method method = pd.getReadMethod();
+                        if (method == null) {
+                            method = pd.getWriteMethod();
+                        }
+                        if (isValid(type, method)) {
+                            return info;
+                        }
+                    }
+                }
+                else {
+                    MethodDescriptor[] mds = info.getMethodDescriptors();
+                    if (mds != null) {
+                        for (MethodDescriptor md : mds) {
+                            if (isValid(type, md.getMethod())) {
+                                return info;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return null;
+    }
+
+    @Override
+    protected BeanInfo instantiate(Class<?> type, String prefix, String name) {
+        // this optimization will only use the BeanInfo search path
+        // if is has changed from the original
+        // or trying to get the ComponentBeanInfo
+        return !DEFAULT.equals(prefix) || "ComponentBeanInfo".equals(name)
+                ? super.instantiate(type, prefix, name)
+                : null;
+    }
+}

src/share/classes/com/sun/beans/finder/InstanceFinder.java

+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package com.sun.beans.finder;
+
+/**
+ * This is utility class that provides basic functionality
+ * to find an auxiliary class for a JavaBean specified by its type.
+ *
+ * @since 1.7
+ *
+ * @author Sergey A. Malenkov
+ */
+class InstanceFinder<T> {
+
+    private static final String[] EMPTY = { };
+
+    private final Class<? extends T> type;
+    private final boolean allow;
+    private final String suffix;
+    private String[] packages;
+
+    InstanceFinder(Class<? extends T> type, boolean allow, String suffix, String... packages) {
+        this.type = type;
+        this.allow = allow;
+        this.suffix = suffix;
+        this.packages = packages.clone();
+    }
+
+    public String[] getPackages() {
+        return (this.packages.length > 0)
+                ? this.packages.clone()
+                : this.packages;
+    }
+
+    public void setPackages(String... packages) {
+        this.packages = (packages != null) && (packages.length > 0)
+                ? packages.clone()
+                : EMPTY;
+    }
+
+    public T find(Class<?> type) {
+        if (type == null) {
+            return null;
+        }
+        String name = type.getName() + this.suffix;
+        T object = instantiate(type, name);
+        if (object != null) {
+            return object;
+        }
+        if (this.allow) {
+            object = instantiate(type, null);
+            if (object != null) {
+                return object;
+            }
+        }
+        int index = name.lastIndexOf('.') + 1;
+        if (index > 0) {
+            name = name.substring(index);
+        }
+        for (String prefix : this.packages) {
+            object = instantiate(type, prefix, name);
+            if (object != null) {
+                return object;
+            }
+        }
+        return null;
+    }
+
+    protected T instantiate(Class<?> type, String name) {
+        if (type != null) {
+            try {
+                if (name != null) {
+                    type = ClassFinder.findClass(name, type.getClassLoader());
+                }
+                if (this.type.isAssignableFrom(type)) {
+                    return (T) type.newInstance();
+                }
+            }
+            catch (Exception exception) {
+                // ignore any exceptions
+            }
+        }
+        return null;
+    }
+
+    protected T instantiate(Class<?> type, String prefix, String name) {
+        return instantiate(type, prefix + '.' + name);
+    }
+}

src/share/classes/com/sun/beans/finder/PersistenceDelegateFinder.java

+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package com.sun.beans.finder;
+
+import java.beans.PersistenceDelegate;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * This is utility class that provides functionality
+ * to find a {@link PersistenceDelegate} for a JavaBean specified by its type.
+ *
+ * @since 1.7
+ *
+ * @author Sergey A. Malenkov
+ */
+public final class PersistenceDelegateFinder
+        extends InstanceFinder<PersistenceDelegate> {
+
+    private final Map<Class<?>, PersistenceDelegate> registry;
+
+    public PersistenceDelegateFinder() {
+        super(PersistenceDelegate.class, true, "PersistenceDelegate");
+        this.registry = new HashMap<Class<?>, PersistenceDelegate>();
+    }
+
+    public void register(Class<?> type, PersistenceDelegate delegate) {
+        if (delegate != null) {
+            this.registry.put(type, delegate);
+        }
+        else {
+            this.registry.remove(type);
+        }
+    }
+
+    @Override
+    public PersistenceDelegate find(Class<?> type) {
+        PersistenceDelegate delegate = this.registry.get(type);
+        return (delegate != null) ? delegate : super.find(type);
+    }
+}

src/share/classes/com/sun/beans/finder/PropertyEditorFinder.java

+/*
+ * Copyright 2009 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package com.sun.beans.finder;
+
+import com.sun.beans.WeakCache;
+
+import java.beans.PropertyEditor;
+
+import sun.beans.editors.BooleanEditor;
+import sun.beans.editors.ByteEditor;
+import sun.beans.editors.DoubleEditor;
+import sun.beans.editors.EnumEditor;
+import sun.beans.editors.FloatEditor;
+import sun.beans.editors.IntegerEditor;
+import sun.beans.editors.LongEditor;
+import sun.beans.editors.ShortEditor;
+
+/**
+ * This is utility class that provides functionality
+ * to find a {@link PropertyEditor} for a JavaBean specified by its type.
+ *
+ * @since 1.7
+ *
+ * @author Sergey A. Malenkov
+ */
+public final class PropertyEditorFinder
+        extends InstanceFinder<PropertyEditor> {
+
+    private final WeakCache<Class<?>, Class<?>> registry;
+
+    public PropertyEditorFinder() {
+        super(PropertyEditor.class, false, "Editor", "sun.beans.editors");
+
+        this.registry = new WeakCache<Class<?>, Class<?>>();
+        this.registry.put(Byte.TYPE, ByteEditor.class);
+        this.registry.put(Short.TYPE, ShortEditor.class);
+        this.registry.put(Integer.TYPE, IntegerEditor.class);
+        this.registry.put(Long.TYPE, LongEditor.class);
+        this.registry.put(Boolean.TYPE, BooleanEditor.class);
+        this.registry.put(Float.TYPE, FloatEditor.class);
+        this.registry.put(Double.TYPE, DoubleEditor.class);
+    }
+
+    public void register(Class<?> type, Class<?> editor) {
+        this.registry.put(type, editor);
+    }
+
+    @Override
+    public PropertyEditor find(Class<?> type) {
+        PropertyEditor editor = instantiate(this.registry.get(type), null);
+        if (editor == null) {
+            editor = super.find(type);
+            if ((editor == null) && (null != type.getEnumConstants())) {
+                editor = new EnumEditor(type);
+            }
+        }
+        return editor;
+    }
+}

src/share/classes/java/beans/Encoder.java

 /*
- * Copyright 2000-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 2000-2009 Sun Microsystems, Inc.  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
@@ -24,7 +24,8 @@
  */
 package java.beans;
 
-import java.util.Collections;
+import com.sun.beans.finder.PersistenceDelegateFinder;
+
 import java.util.HashMap;
 import java.util.IdentityHashMap;
 import java.util.Map;
@@ -45,8 +46,7 @@ import java.util.Map;
  */
 
 public class Encoder {
-    private final Map<Class<?>, PersistenceDelegate> delegates
-            = Collections.synchronizedMap(new HashMap<Class<?>, PersistenceDelegate>());
+    private final PersistenceDelegateFinder finder = new PersistenceDelegateFinder();
     private Map bindings = new IdentityHashMap();
     private ExceptionListener exceptionListener;
     boolean executeStatements = true;
@@ -166,8 +166,13 @@ public class Encoder {
      * @see java.beans.BeanInfo#getBeanDescriptor
      */
     public PersistenceDelegate getPersistenceDelegate(Class<?> type) {
-        PersistenceDelegate pd = this.delegates.get(type);
-        return (pd != null) ? pd : MetaData.getPersistenceDelegate(type);
+        synchronized (this.finder) {
+            PersistenceDelegate pd = this.finder.find(type);
+            if (pd != null) {
+                return pd;
+            }
+        }
+        return MetaData.getPersistenceDelegate(type);
     }
 
     /**
@@ -184,10 +189,8 @@ public class Encoder {
     public void setPersistenceDelegate(Class<?> type,
                                        PersistenceDelegate persistenceDelegate)
     {
-        if (persistenceDelegate != null) {
-            this.delegates.put(type, persistenceDelegate);
-        } else {
-            this.delegates.remove(type);
+        synchronized (this.finder) {
+            this.finder.register(type, persistenceDelegate);
         }
     }
 

src/share/classes/java/beans/Introspector.java

 /*
- * Copyright 1996-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1996-2009 Sun Microsystems, Inc.  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
@@ -25,6 +25,7 @@
 
 package java.beans;
 
+import com.sun.beans.finder.BeanInfoFinder;
 import com.sun.beans.finder.ClassFinder;
 
 import java.lang.ref.Reference;
@@ -45,6 +46,8 @@ import java.util.EventListener;
 import java.util.List;
 import java.util.WeakHashMap;
 import java.util.TreeMap;
+
+import sun.awt.AppContext;
 import sun.reflect.misc.ReflectUtil;
 
 /**
@@ -137,10 +140,6 @@ public class Introspector {
     // events maps from String names to EventSetDescriptors
     private Map events;
 
-    private final static String DEFAULT_INFO_PATH = "sun.beans.infos";
-
-    private static String[] searchPath = { DEFAULT_INFO_PATH };
-
     private final static EventSetDescriptor[] EMPTY_EVENTSETDESCRIPTORS = new EventSetDescriptor[0];
 
     static final String ADD_PREFIX = "add";
@@ -149,7 +148,7 @@ public class Introspector {
     static final String SET_PREFIX = "set";
     static final String IS_PREFIX = "is";
 
-    private static final String BEANINFO_SUFFIX = "BeanInfo";
+    private static final Object FINDER_KEY = new Object();
 
     //======================================================================
     //                          Public methods
@@ -309,13 +308,11 @@ public class Introspector {
      *          Sun implementation initially sets to {"sun.beans.infos"}.
      */
 
-    public static synchronized String[] getBeanInfoSearchPath() {
-        // Return a copy of the searchPath.
-        String result[] = new String[searchPath.length];
-        for (int i = 0; i < searchPath.length; i++) {
-            result[i] = searchPath[i];
+    public static String[] getBeanInfoSearchPath() {
+        BeanInfoFinder finder = getFinder();
+        synchronized (finder) {
+            return finder.getPackages();
         }
-        return result;
     }
 
     /**
@@ -334,12 +331,15 @@ public class Introspector {
      * @see SecurityManager#checkPropertiesAccess
      */
 
-    public static synchronized void setBeanInfoSearchPath(String path[]) {
+    public static void setBeanInfoSearchPath(String[] path) {
         SecurityManager sm = System.getSecurityManager();
         if (sm != null) {
             sm.checkPropertiesAccess();
         }
-        searchPath = path;
+        BeanInfoFinder finder = getFinder();
+        synchronized (finder) {
+            finder.setPackages(path);
+        }
     }
 
 
@@ -447,67 +447,14 @@ public class Introspector {
      * then it checks to see if the class is its own BeanInfo. Finally,
      * the BeanInfo search path is prepended to the class and searched.
      *
+     * @param beanClass  the class type of the bean
      * @return Instance of an explicit BeanInfo class or null if one isn't found.
      */
-    private static synchronized BeanInfo findExplicitBeanInfo(Class beanClass) {
-        String name = beanClass.getName() + BEANINFO_SUFFIX;
-        try {
-            return (java.beans.BeanInfo)instantiate(beanClass, name);
-        } catch (Exception ex) {
-            // Just drop through
-
-        }
-        // Now try checking if the bean is its own BeanInfo.
-        try {
-            if (isSubclass(beanClass, java.beans.BeanInfo.class)) {
-                return (java.beans.BeanInfo)beanClass.newInstance();
-            }
-        } catch (Exception ex) {
-            // Just drop through
+    private static BeanInfo findExplicitBeanInfo(Class beanClass) {
+        BeanInfoFinder finder = getFinder();
+        synchronized (finder) {
+            return finder.find(beanClass);
         }
-        // Now try looking for <searchPath>.fooBeanInfo
-        name = name.substring(name.lastIndexOf('.')+1);
-
-        for (int i = 0; i < searchPath.length; i++) {
-            // This optimization will only use the BeanInfo search path if is has changed
-            // from the original or trying to get the ComponentBeanInfo.
-            if (!DEFAULT_INFO_PATH.equals(searchPath[i]) ||
-                DEFAULT_INFO_PATH.equals(searchPath[i]) && "ComponentBeanInfo".equals(name)) {
-                try {
-                    String fullName = searchPath[i] + "." + name;
-                    java.beans.BeanInfo bi = (java.beans.BeanInfo)instantiate(beanClass, fullName);
-
-                    // Make sure that the returned BeanInfo matches the class.
-                    if (bi.getBeanDescriptor() != null) {
-                        if (bi.getBeanDescriptor().getBeanClass() == beanClass) {
-                            return bi;
-                        }
-                    } else if (bi.getPropertyDescriptors() != null) {
-                        PropertyDescriptor[] pds = bi.getPropertyDescriptors();
-                        for (int j = 0; j < pds.length; j++) {
-                            Method method = pds[j].getReadMethod();
-                            if (method == null) {
-                                method = pds[j].getWriteMethod();
-                            }
-                            if (method != null && method.getDeclaringClass() == beanClass) {
-                                return bi;
-                            }
-                        }
-                    } else if (bi.getMethodDescriptors() != null) {
-                        MethodDescriptor[] mds = bi.getMethodDescriptors();
-                        for (int j = 0; j < mds.length; j++) {
-                            Method method = mds[j].getMethod();
-                            if (method != null && method.getDeclaringClass() == beanClass) {
-                                return bi;
-                            }
-                        }
-                    }
-                } catch (Exception ex) {
-                    // Silently ignore any errors.
-                }
-            }
-        }
-        return null;
     }
 
     /**
@@ -1483,6 +1430,16 @@ public class Introspector {
         return false;
     }
 
+    private static BeanInfoFinder getFinder() {
+        AppContext context = AppContext.getAppContext();
+        Object object = context.get(FINDER_KEY);
+        if (object instanceof BeanInfoFinder) {
+            return (BeanInfoFinder) object;
+        }
+        BeanInfoFinder finder = new BeanInfoFinder();
+        context.put(FINDER_KEY, finder);
+        return finder;
+    }
 
     /**
      * Try to create an instance of a named class.

src/share/classes/java/beans/PropertyEditorManager.java

 /*
- * Copyright 1996-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1996-2009 Sun Microsystems, Inc.  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
@@ -25,8 +25,8 @@
 
 package java.beans;
 
-import com.sun.beans.WeakCache;
-import sun.beans.editors.*;
+import com.sun.beans.finder.PropertyEditorFinder;
+import sun.awt.AppContext;
 
 /**
  * The PropertyEditorManager can be used to locate a property editor for
@@ -55,6 +55,8 @@ import sun.beans.editors.*;
 
 public class PropertyEditorManager {
 
+    private static final Object FINDER_KEY = new Object();
+
     /**
      * Registers an editor class to edit values of the given target class.
      * If the editor class is {@code null},
@@ -74,12 +76,15 @@ public class PropertyEditorManager {
      *
      * @see SecurityManager#checkPropertiesAccess
      */
-    public static synchronized void registerEditor(Class<?> targetType, Class<?> editorClass) {
+    public static void registerEditor(Class<?> targetType, Class<?> editorClass) {
         SecurityManager sm = System.getSecurityManager();
         if (sm != null) {
             sm.checkPropertiesAccess();
         }
-        registry.put(targetType, editorClass);
+        PropertyEditorFinder finder = getFinder();
+        synchronized (finder) {
+            finder.register(targetType, editorClass);
+        }
     }
 
     /**
@@ -89,46 +94,11 @@ public class PropertyEditorManager {
      * @return An editor object for the given target class.
      * The result is null if no suitable editor can be found.
      */
-    public static synchronized PropertyEditor findEditor(Class<?> targetType) {
-        Class editorClass = registry.get(targetType);
-        if (editorClass != null) {
-            try {
-                Object o = editorClass.newInstance();
-                return (PropertyEditor)o;
-            } catch (Exception ex) {
-                System.err.println("Couldn't instantiate type editor \"" +
-                        editorClass.getName() + "\" : " + ex);
-            }
-        }
-
-        // Now try adding "Editor" to the class name.
-
-        String editorName = targetType.getName() + "Editor";
-        try {
-            return (PropertyEditor) Introspector.instantiate(targetType, editorName);
-        } catch (Exception ex) {
-           // Silently ignore any errors.
-        }
-
-        // Now try looking for <searchPath>.fooEditor
-        int index = editorName.lastIndexOf('.') + 1;
-        if (index > 0) {
-            editorName = editorName.substring(index);
+    public static PropertyEditor findEditor(Class<?> targetType) {
+        PropertyEditorFinder finder = getFinder();
+        synchronized (finder) {
+            return finder.find(targetType);
         }
-        for (String path : searchPath) {
-            String name = path + '.' + editorName;
-            try {
-                return (PropertyEditor) Introspector.instantiate(targetType, name);
-            } catch (Exception ex) {
-               // Silently ignore any errors.
-            }
-        }
-
-        if (null != targetType.getEnumConstants()) {
-            return new EnumEditor(targetType);
-        }
-        // We couldn't find a suitable Editor.
-        return null;
     }
 
     /**
@@ -139,8 +109,11 @@ public class PropertyEditorManager {
      * <p>     The default value for this array is implementation-dependent,
      *         e.g. Sun implementation initially sets to  {"sun.beans.editors"}.
      */
-    public static synchronized String[] getEditorSearchPath() {
-        return searchPath.clone();
+    public static String[] getEditorSearchPath() {
+        PropertyEditorFinder finder = getFinder();
+        synchronized (finder) {
+            return finder.getPackages();
+        }
     }
 
     /**
@@ -156,28 +129,25 @@ public class PropertyEditorManager {
      *              of system properties.
      * @see SecurityManager#checkPropertiesAccess
      */
-    public static synchronized void setEditorSearchPath(String[] path) {
+    public static void setEditorSearchPath(String[] path) {
         SecurityManager sm = System.getSecurityManager();
         if (sm != null) {
             sm.checkPropertiesAccess();
         }
-        searchPath = (path != null)
-                ? path.clone()
-                : EMPTY;
+        PropertyEditorFinder finder = getFinder();
+        synchronized (finder) {
+            finder.setPackages(path);
+        }
     }
 
-    private static String[] searchPath = { "sun.beans.editors" };
-    private static final String[] EMPTY = {};
-    private static final WeakCache<Class<?>, Class<?>> registry;
-
-    static {
-        registry = new WeakCache<Class<?>, Class<?>>();
-        registry.put(Byte.TYPE, ByteEditor.class);
-        registry.put(Short.TYPE, ShortEditor.class);
-        registry.put(Integer.TYPE, IntegerEditor.class);
-        registry.put(Long.TYPE, LongEditor.class);
-        registry.put(Boolean.TYPE, BooleanEditor.class);
-        registry.put(Float.TYPE, FloatEditor.class);
-        registry.put(Double.TYPE, DoubleEditor.class);
+    private static PropertyEditorFinder getFinder() {
+        AppContext context = AppContext.getAppContext();
+        Object object = context.get(FINDER_KEY);
+        if (object instanceof PropertyEditorFinder) {
+            return (PropertyEditorFinder) object;
+        }
+        PropertyEditorFinder finder = new PropertyEditorFinder();
+        context.put(FINDER_KEY, finder);
+        return finder;
     }
 }

test/java/beans/Introspector/6380849/TestBeanInfo.java

+/**
+ * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6380849
+ * @summary Tests BeanInfo finder
+ * @author Sergey Malenkov
+ */
+
+import beans.FirstBean;
+import beans.FirstBeanBeanInfo;
+import beans.SecondBean;
+import beans.ThirdBean;
+
+import infos.SecondBeanBeanInfo;
+import infos.ThirdBeanBeanInfo;
+
+import java.beans.BeanInfo;
+import java.beans.Introspector;
+import java.lang.reflect.Field;
+
+import sun.awt.SunToolkit;
+
+public class TestBeanInfo implements Runnable {
+
+    private static final String[] SEARCH_PATH = { "infos" }; // NON-NLS: package name
+
+    public static void main(String[] args) throws InterruptedException {
+        TestBeanInfo test = new TestBeanInfo();
+        test.run();
+        // the following tests fails on previous build
+        ThreadGroup group = new ThreadGroup("$$$"); // NON-NLS: unique thread name
+        Thread thread = new Thread(group, test);
+        thread.start();
+        thread.join();
+    }
+
+    private static void test(Class<?> type, Class<? extends BeanInfo> expected) {
+        BeanInfo actual;
+        try {
+            actual = Introspector.getBeanInfo(type);
+            type = actual.getClass();
+            Field field = type.getDeclaredField("targetBeanInfo"); // NON-NLS: field name
+            field.setAccessible(true);
+            actual = (BeanInfo) field.get(actual);
+        }
+        catch (Exception exception) {
+            throw new Error("unexpected error", exception);
+        }
+        if ((actual == null) && (expected != null)) {
+            throw new Error("expected info is not found");
+        }
+        if ((actual != null) && !actual.getClass().equals(expected)) {
+            throw new Error("found unexpected info");
+        }
+    }
+
+    private boolean passed;
+
+    public void run() {
+        if (this.passed) {
+            SunToolkit.createNewAppContext();
+        }
+        Introspector.flushCaches();
+
+        test(FirstBean.class, FirstBeanBeanInfo.class);
+        test(SecondBean.class, null);
+        test(ThirdBean.class, null);
+        test(ThirdBeanBeanInfo.class, ThirdBeanBeanInfo.class);
+
+        Introspector.setBeanInfoSearchPath(SEARCH_PATH);
+        Introspector.flushCaches();
+
+        test(FirstBean.class, FirstBeanBeanInfo.class);
+        test(SecondBean.class, SecondBeanBeanInfo.class);
+        test(ThirdBean.class, null);
+        test(ThirdBeanBeanInfo.class, ThirdBeanBeanInfo.class);
+
+        this.passed = true;
+    }
+}

test/java/beans/Introspector/6380849/beans/FirstBean.java

+package beans;
+
+public class FirstBean {
+}

test/java/beans/Introspector/6380849/beans/FirstBeanBeanInfo.java

+package beans;
+
+import java.beans.BeanDescriptor;
+import java.beans.SimpleBeanInfo;
+
+public class FirstBeanBeanInfo extends SimpleBeanInfo {
+    @Override
+    public BeanDescriptor getBeanDescriptor() {
+        return new BeanDescriptor(FirstBean.class);
+    }
+}

test/java/beans/Introspector/6380849/beans/SecondBean.java

+package beans;
+
+public class SecondBean {
+}

test/java/beans/Introspector/6380849/beans/ThirdBean.java

+package beans;
+
+public class ThirdBean {
+}

test/java/beans/Introspector/6380849/infos/SecondBeanBeanInfo.java

+package infos;
+
+import beans.SecondBean;
+
+import java.beans.BeanDescriptor;
+import java.beans.SimpleBeanInfo;
+
+public class SecondBeanBeanInfo extends SimpleBeanInfo {
+    @Override
+    public BeanDescriptor getBeanDescriptor() {
+        return new BeanDescriptor(SecondBean.class);
+    }
+}

test/java/beans/Introspector/6380849/infos/ThirdBeanBeanInfo.java

+package infos;
+
+import java.beans.BeanDescriptor;
+import java.beans.SimpleBeanInfo;
+
+public class ThirdBeanBeanInfo extends SimpleBeanInfo {
+    @Override
+    public BeanDescriptor getBeanDescriptor() {
+        return new BeanDescriptor(ThirdBeanBeanInfo.class);
+    }
+}

test/java/beans/PropertyEditor/6380849/FirstBean.java

+public class FirstBean {
+}

test/java/beans/PropertyEditor/6380849/FirstBeanEditor.java

+import java.beans.PropertyEditorSupport;
+
+public class FirstBeanEditor extends PropertyEditorSupport {
+}

test/java/beans/PropertyEditor/6380849/SecondBean.java

+public class SecondBean {
+}

test/java/beans/PropertyEditor/6380849/TestPropertyEditor.java

+/**
+ * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6380849
+ * @summary Tests PropertyEditor finder
+ * @author Sergey Malenkov
+ */
+
+import editors.SecondBeanEditor;
+import editors.ThirdBeanEditor;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.beans.PropertyEditor;
+import java.beans.PropertyEditorManager;
+
+import sun.awt.SunToolkit;
+import sun.beans.editors.BooleanEditor;
+import sun.beans.editors.ByteEditor;
+import sun.beans.editors.ColorEditor;
+import sun.beans.editors.DoubleEditor;
+import sun.beans.editors.EnumEditor;
+import sun.beans.editors.FloatEditor;
+import sun.beans.editors.FontEditor;
+import sun.beans.editors.IntegerEditor;
+import sun.beans.editors.LongEditor;
+import sun.beans.editors.ShortEditor;
+import sun.beans.editors.StringEditor;
+
+public class TestPropertyEditor implements Runnable {
+
+    private enum Enumeration {
+        FIRST, SECOND, THIRD
+    }
+
+    private static final String[] SEARCH_PATH = { "editors" }; // NON-NLS: package name
+
+    public static void main(String[] args) throws InterruptedException {
+        TestPropertyEditor test = new TestPropertyEditor();
+        test.run();
+        // the following tests fails on previous build
+        ThreadGroup group = new ThreadGroup("$$$"); // NON-NLS: unique thread name
+        Thread thread = new Thread(group, test);
+        thread.start();
+        thread.join();
+    }
+
+    private static void test(Class<?> type, Class<? extends PropertyEditor> expected) {
+        PropertyEditor actual = PropertyEditorManager.findEditor(type);
+        if ((actual == null) && (expected != null)) {
+            throw new Error("expected editor is not found");
+        }
+        if ((actual != null) && !actual.getClass().equals(expected)) {
+            throw new Error("found unexpected editor");
+        }
+    }
+
+    private boolean passed;
+
+    public void run() {
+        if (this.passed) {
+            SunToolkit.createNewAppContext();
+        }
+        PropertyEditorManager.registerEditor(ThirdBean.class, ThirdBeanEditor.class);
+
+        test(FirstBean.class, FirstBeanEditor.class);
+        test(SecondBean.class, null);
+        test(ThirdBean.class, ThirdBeanEditor.class);
+        // test editors for default primitive types
+        test(Byte.TYPE, ByteEditor.class);
+        test(Short.TYPE, ShortEditor.class);
+        test(Integer.TYPE, IntegerEditor.class);
+        test(Long.TYPE, LongEditor.class);
+        test(Boolean.TYPE, BooleanEditor.class);
+        test(Float.TYPE, FloatEditor.class);
+        test(Double.TYPE, DoubleEditor.class);
+        // test editors for default object types
+        test(Byte.class, ByteEditor.class);
+        test(Short.class, ShortEditor.class);
+        test(Integer.class, IntegerEditor.class);
+        test(Long.class, LongEditor.class);
+        test(Boolean.class, BooleanEditor.class);
+        test(Float.class, FloatEditor.class);
+        test(Double.class, DoubleEditor.class);
+        test(String.class, StringEditor.class);
+        test(Color.class, ColorEditor.class);
+        test(Font.class, FontEditor.class);
+        test(Enumeration.class, EnumEditor.class);
+
+        PropertyEditorManager.registerEditor(ThirdBean.class, null);
+        PropertyEditorManager.setEditorSearchPath(SEARCH_PATH);
+
+        test(FirstBean.class, FirstBeanEditor.class);
+        test(SecondBean.class, SecondBeanEditor.class);
+        test(ThirdBean.class, ThirdBeanEditor.class);
+        // test editors for default primitive types
+        test(Byte.TYPE, ByteEditor.class);
+        test(Short.TYPE, ShortEditor.class);
+        test(Integer.TYPE, IntegerEditor.class);
+        test(Long.TYPE, LongEditor.class);
+        test(Boolean.TYPE, BooleanEditor.class);
+        test(Float.TYPE, FloatEditor.class);
+        test(Double.TYPE, DoubleEditor.class);
+        // test editors for default object types
+        test(Byte.class, null);
+        test(Short.class, null);
+        test(Integer.class, null);
+        test(Long.class, null);
+        test(Boolean.class, null);
+        test(Float.class, null);
+        test(Double.class, null);
+        test(String.class, null);
+        test(Color.class, null);
+        test(Font.class, null);
+        test(Enumeration.class, EnumEditor.class);
+
+        this.passed = true;
+    }
+}

test/java/beans/PropertyEditor/6380849/ThirdBean.java

+public class ThirdBean {
+}

test/java/beans/PropertyEditor/6380849/editors/SecondBeanEditor.java

+package editors;
+
+import java.beans.PropertyEditorSupport;
+
+public class SecondBeanEditor extends PropertyEditorSupport {
+}

test/java/beans/PropertyEditor/6380849/editors/ThirdBeanEditor.java

+package editors;
+
+import java.beans.PropertyEditorSupport;
+
+public class ThirdBeanEditor extends PropertyEditorSupport {
+}

test/java/beans/XMLEncoder/6380849/Bean.java

+public class Bean {
+}

test/java/beans/XMLEncoder/6380849/BeanPersistenceDelegate.java

+import java.beans.DefaultPersistenceDelegate;
+
+public class BeanPersistenceDelegate
+        extends DefaultPersistenceDelegate {
+}

test/java/beans/XMLEncoder/6380849/TestPersistenceDelegate.java

+/**
+ * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6380849
+ * @summary Tests PersistenceDelegate finder
+ * @author Sergey Malenkov
+ */
+
+import java.beans.PersistenceDelegate;
+import java.beans.XMLEncoder;
+import java.beans.DefaultPersistenceDelegate;
+
+public class TestPersistenceDelegate {
+
+    private static final XMLEncoder ENCODER = new XMLEncoder(System.out);
+
+    public static void main(String[] args) throws InterruptedException {
+        Class<?> type = TestPersistenceDelegate.class;
+        test(type, DefaultPersistenceDelegate.class);
+        ENCODER.setPersistenceDelegate(type, new BeanPersistenceDelegate());
+        test(type, BeanPersistenceDelegate.class);
+        ENCODER.setPersistenceDelegate(type, null);
+        test(type, DefaultPersistenceDelegate.class);
+        // the following tests fails on previous build
+        test(Bean.class, BeanPersistenceDelegate.class);
+        test(BeanPersistenceDelegate.class, BeanPersistenceDelegate.class);
+    }
+
+    private static void test(Class<?> type, Class<? extends PersistenceDelegate> expected) {
+        PersistenceDelegate actual = ENCODER.getPersistenceDelegate(type);
+        if ((actual == null) && (expected != null)) {
+            throw new Error("expected delegate is not found");
+        }
+        if ((actual != null) && !actual.getClass().equals(expected)) {
+            throw new Error("found unexpected delegate");
+        }
+    }
+}