Attachment 191077 Details for Bug 339827 – ClassUtil

Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.

[patch] ClassUtil

clipboard.txt (text/plain), 46.68 KB, created by Rüdiger Herrmann

on 2011-03-13 11:11:10 EDT

(hide)

Description:

Filename:

MIME Type:

Creator: Rüdiger Herrmann

Created: 2011-03-13 11:11:10 EDT

Size: 46.68 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.rap.rwt
>Index: src/org/eclipse/rwt/RWT.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/RWT.java,v
>retrieving revision 1.22
>diff -u -r1.22 RWT.java
>--- src/org/eclipse/rwt/RWT.java	6 Mar 2011 17:38:00 -0000	1.22
>+++ src/org/eclipse/rwt/RWT.java	13 Mar 2011 15:10:49 -0000
>@@ -24,6 +24,7 @@
> import org.eclipse.rwt.internal.lifecycle.RWTLifeCycle;
> import org.eclipse.rwt.internal.resources.ResourceManager;
> import org.eclipse.rwt.internal.service.*;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.internal.widgets.BrowserHistory;
> import org.eclipse.rwt.lifecycle.ILifeCycle;
> import org.eclipse.rwt.resources.IResourceManager;
>@@ -133,13 +134,7 @@
>       synchronized( map ) {
>         result = map.get( bundle );
>         if( result == null ) {
>-          try {
>-            Constructor constructor = clazz.getDeclaredConstructor( null );
>-            constructor.setAccessible( true );
>-            result = constructor.newInstance( null );
>-          } catch( final Exception ex ) {
>-            throw new IllegalStateException( ex.getMessage() );
>-          }
>+          result = ClassUtil.newInstance( clazz );
>           Field[] fields = clazz.getDeclaredFields();
>           for( int i = 0; i < fields.length; i++ ) {
>             String fieldName = fields[ i ].getName();
>@@ -161,12 +156,8 @@
>                 }
>               }
>             } catch( final Exception ex ) {
>-              String msg
>-                = "Failed to load localized message for: " 
>-                + clazz.getName() 
>-                + "#" 
>-                + fieldName;
>-              ServletLog.log( msg, ex );
>+              String qualifiedName = clazz.getName() + "#" + fieldName;
>+              ServletLog.log( "Failed to load localized message for: " + qualifiedName, ex );
>             }
>           }
>           map.put( bundle, result );
>Index: src/org/eclipse/rwt/SessionSingletonBase.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/SessionSingletonBase.java,v
>retrieving revision 1.8
>diff -u -r1.8 SessionSingletonBase.java
>--- src/org/eclipse/rwt/SessionSingletonBase.java	12 Jun 2008 13:12:18 -0000	1.8
>+++ src/org/eclipse/rwt/SessionSingletonBase.java	13 Mar 2011 15:10:49 -0000
>@@ -10,13 +10,12 @@
>  ******************************************************************************/
> package org.eclipse.rwt;
> 
>-import java.lang.reflect.Constructor;
>-import java.lang.reflect.InvocationTargetException;
> import java.util.Hashtable;
> import java.util.Map;
> 
> import org.eclipse.rwt.internal.service.ContextProvider;
> import org.eclipse.rwt.internal.service.IServiceStateInfo;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.service.ISessionStore;
> 
> 
>@@ -62,8 +61,6 @@
>   private final static String PREFIX = "com_w4t_session_singleton_";
>   private static final String LOCK_POSTFIX = "#typeLock";
>   
>-  private final static Class[] EMPTY_PARAMS = new Class[ 0 ];
>-  
>   private final static Map instanceKeyMap = new Hashtable();
>   private final static Map lockKeyMap = new Hashtable();
> 
>@@ -145,49 +142,7 @@
>   private static Object getInstanceInternal( final Class type ) {
>     Object result = getAttribute( getInstanceKey( type ) ); 
>     if( result == null ) {
>-      try {
>-        Constructor constructor = type.getDeclaredConstructor( EMPTY_PARAMS );
>-        if( constructor.isAccessible() ) {
>-          result = type.newInstance();
>-        } else {
>-          constructor.setAccessible( true );
>-          result = constructor.newInstance( null );
>-        }
>-      } catch( final SecurityException ex ) {
>-        String msg =   "Could not created the session singleton instance of '"
>-                     + type.getName() 
>-                     + "' due to security restrictions that probably do "
>-                     + "not allow reflection.";
>-        throw new RuntimeException( msg, ex );
>-      } catch( final IllegalArgumentException iae ) {
>-        String msg =   "Could not create the session singleton instance of '"
>-                     + type.getName() 
>-                     + "'. Probably there is no parameterless constructor.";
>-        throw new RuntimeException( msg, iae );
>-      } catch( final NoSuchMethodException nsme ) {
>-        String msg =   "Could not create the session singleton instance of '"
>-                     + type.getName() 
>-                     + "'. Probably there is no parameterless constructor.";
>-        throw new RuntimeException( msg, nsme );
>-      } catch( final InstantiationException ise ) {
>-        String msg =   "Could not create the session singleton instance of '"
>-                     + type.getName() 
>-                     + "'. Unable to create an instance.";
>-        throw new RuntimeException( msg, ise );
>-      } catch( final IllegalAccessException iae ) {
>-        String msg =   "Could not create the session singleton instance of '"
>-                      + type.getName() 
>-                      + "'. Not allowed to access the constructor "
>-                      + "for unknown reasons.";
>-        throw new RuntimeException( msg, iae );
>-      } catch( final InvocationTargetException ite ) {
>-        String msg =   "Could not create the session singleton instance of '"
>-                     + type.getName() 
>-                     + "' because an Exception was thrown by the constructor:\n"
>-                     + ite.getCause().getMessage()
>-                     + ".";
>-        throw new RuntimeException( msg, ite );
>-      }
>+      result = ClassUtil.newInstance( type );
>       setAttribute( getInstanceKey( type ), result );
>     }
>     return result;
>Index: src/org/eclipse/rwt/internal/AdapterFactoryRegistryInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/AdapterFactoryRegistryInstance.java,v
>retrieving revision 1.1
>diff -u -r1.1 AdapterFactoryRegistryInstance.java
>--- src/org/eclipse/rwt/internal/AdapterFactoryRegistryInstance.java	6 Mar 2011 17:38:01 -0000	1.1
>+++ src/org/eclipse/rwt/internal/AdapterFactoryRegistryInstance.java	13 Mar 2011 15:10:49 -0000
>@@ -19,7 +19,7 @@
> import org.eclipse.rwt.Adaptable;
> import org.eclipse.rwt.AdapterFactory;
> import org.eclipse.rwt.internal.service.ServletLog;
>-import org.eclipse.rwt.internal.util.ParamCheck;
>+import org.eclipse.rwt.internal.util.*;
> 
> 
> public class AdapterFactoryRegistryInstance {
>@@ -64,13 +64,11 @@
>           factoryClass.getName(),
>           adaptableClass.getName()
>         };
>-        String text
>-          = "The factory ''{0}'' was already added for the adaptable ''{1}''.";
>+        String text = "The factory ''{0}'' was already added for the adaptable ''{1}''.";
>         String msg = MessageFormat.format( text, params );
>         throw new IllegalArgumentException( msg );
>       }
>     }
>-    
>     FactoryEntry factoryEntry = new FactoryEntry();
>     factoryEntry.factoryClass = factoryClass;
>     factoryEntry.adaptableClass = adaptableClass;
>@@ -82,13 +80,12 @@
>     for( int i = 0; i < entries.length; i++ ) {
>       Class clazz = entries[ i ].factoryClass;
>       try {
>-        AdapterFactory factory = ( AdapterFactory )clazz.newInstance();
>-        AdapterManager manager = AdapterManagerImpl.getInstance();
>-        manager.registerAdapters( factory, entries[ i ].adaptableClass );
>-      } catch( Throwable thr ) {
>+        AdapterFactory factory = ( AdapterFactory )ClassUtil.newInstance( clazz );
>+        AdapterManagerImpl.getInstance().registerAdapters( factory, entries[ i ].adaptableClass );
>+      } catch( ClassInstantiationException cie ) {
>         String text = "Could not create an instance of ''{0}''.";
>         String msg = MessageFormat.format( text, new Object[] { clazz } );
>-        ServletLog.log( msg, thr );
>+        ServletLog.log( msg, cie );
>       }
>     }
>   }
>Index: src/org/eclipse/rwt/internal/FacadesInitializer.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/FacadesInitializer.java,v
>retrieving revision 1.3
>diff -u -r1.3 FacadesInitializer.java
>--- src/org/eclipse/rwt/internal/FacadesInitializer.java	6 Oct 2009 11:17:24 -0000	1.3
>+++ src/org/eclipse/rwt/internal/FacadesInitializer.java	13 Mar 2011 15:10:49 -0000
>@@ -10,21 +10,12 @@
>  ******************************************************************************/
> package org.eclipse.rwt.internal;
> 
>-import java.text.MessageFormat;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> 
> public final class FacadesInitializer {
> 
>   public static Object load( final Class facade ) {
>     String name = facade.getName();
>-    Object result = null;
>-    try {
>-      ClassLoader loader = facade.getClassLoader();
>-      result = loader.loadClass( name + "Impl" ).newInstance();
>-    } catch( Throwable throwable ) {
>-      String txt = "Could not load facade for {0}";
>-      String msg = MessageFormat.format( txt, new Object[] { name } );
>-      throw new RuntimeException( msg, throwable );
>-    }
>-    return result;
>+    return ClassUtil.newInstance( facade.getClassLoader(), name + "Impl" );
>   }
> }
>Index: src/org/eclipse/rwt/internal/engine/RWTContext.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/engine/RWTContext.java,v
>retrieving revision 1.2
>diff -u -r1.2 RWTContext.java
>--- src/org/eclipse/rwt/internal/engine/RWTContext.java	7 Mar 2011 17:06:36 -0000	1.2
>+++ src/org/eclipse/rwt/internal/engine/RWTContext.java	13 Mar 2011 15:10:49 -0000
>@@ -11,11 +11,11 @@
>  ******************************************************************************/
> package org.eclipse.rwt.internal.engine;
> 
>-import java.lang.reflect.Constructor;
> import java.text.MessageFormat;
> import java.util.HashMap;
> import java.util.Map;
> 
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.internal.util.ParamCheck;
> 
> 
>@@ -51,7 +51,7 @@
> 
>   private void createInstances( Class[] instanceTypes ) {
>     for( int i = 0; i < instanceTypes.length; i++ ) {
>-      Object instance = createInstance( instanceTypes[ i ] );
>+      Object instance = ClassUtil.newInstance( instanceTypes[ i ] );
>       bufferInstance( instanceTypes[ i ], instance );
>     }
>   }
>@@ -77,18 +77,6 @@
>     }
>   }
> 
>-  private static Object createInstance( Class instanceType ) {
>-    Object result = null;
>-    try {
>-      Constructor constructor = instanceType.getDeclaredConstructor( null );
>-      constructor.setAccessible( true );
>-      result = constructor.newInstance( null );
>-    } catch( Exception shouldNotHappen ) {
>-      handleCreationProblem( instanceType, shouldNotHappen );
>-    }
>-    return result;
>-  }
>-
>   private static Object createInstanceFromFactory( Object instance ) {
>     Object result = instance;
>     if( instance instanceof InstanceTypeFactory ) {
>@@ -107,18 +95,6 @@
>     return result;
>   }
> 
>-  private static void handleCreationProblem( Class instanceType, final Exception cause ) {
>-    String pattern = "Could not create instance of type ''{0}''.";
>-    Object[] arguments = new Object[] { instanceType.getName() };
>-    String msg = MessageFormat.format( pattern, arguments );
>-    throw new IllegalArgumentException( msg ) {
>-      private static final long serialVersionUID = 1L;
>-      public Throwable getCause() {
>-        return cause;
>-      }
>-    };
>-  }
>-
>   private static void checkRegistered( Class instanceType, Object instance ) {
>     if( instance == null ) {
>       String pattern = "Unregistered instance type ''{0}''";
>Index: src/org/eclipse/rwt/internal/engine/RWTServletContextListener.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/engine/RWTServletContextListener.java,v
>retrieving revision 1.22
>diff -u -r1.22 RWTServletContextListener.java
>--- src/org/eclipse/rwt/internal/engine/RWTServletContextListener.java	6 Mar 2011 17:38:00 -0000	1.22
>+++ src/org/eclipse/rwt/internal/engine/RWTServletContextListener.java	13 Mar 2011 15:10:49 -0000
>@@ -28,6 +28,8 @@
> import org.eclipse.rwt.internal.theme.*;
> import org.eclipse.rwt.internal.theme.css.CssFileReader;
> import org.eclipse.rwt.internal.theme.css.StyleSheet;
>+import org.eclipse.rwt.internal.util.ClassInstantiationException;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.lifecycle.PhaseListener;
> import org.eclipse.rwt.resources.IResource;
> import org.eclipse.rwt.resources.IResourceManagerFactory;
>@@ -40,22 +42,14 @@
> public final class RWTServletContextListener implements ServletContextListener {
> 
>   private static final String PREFIX = "org.eclipse.rwt.";
>-  public static final String ENTRY_POINTS_PARAM
>-    = PREFIX + "entryPoints";
>-  public static final String THEMES_PARAM
>-    = PREFIX + "themes";
>-  public static final String RESOURCE_MANAGER_FACTORY_PARAM
>-    = PREFIX + "resourceManagerFactory";
>-  public static final String SETTING_STORE_FACTORY_PARAM
>-    = PREFIX + "settingStoreFactory";
>-  public static final String ADAPTER_FACTORIES_PARAM
>-    = PREFIX + "adapterFactories";
>-  public static final String PHASE_LISTENERS_PARAM
>-    = PREFIX + "phaseListeners";
>-  public static final String RESOURCES_PARAM
>-    = PREFIX + "resources";
>-  public static final String BRANDINGS_PARAM
>-    = PREFIX + "brandings";
>+  public static final String ENTRY_POINTS_PARAM = PREFIX + "entryPoints";
>+  public static final String THEMES_PARAM = PREFIX + "themes";
>+  public static final String RESOURCE_MANAGER_FACTORY_PARAM = PREFIX + "resourceManagerFactory";
>+  public static final String SETTING_STORE_FACTORY_PARAM = PREFIX + "settingStoreFactory";
>+  public static final String ADAPTER_FACTORIES_PARAM = PREFIX + "adapterFactories";
>+  public static final String PHASE_LISTENERS_PARAM = PREFIX + "phaseListeners";
>+  public static final String RESOURCES_PARAM = PREFIX + "resources";
>+  public static final String BRANDINGS_PARAM = PREFIX + "brandings";
> 
>   private static final String SEPARATOR = ",";
> 
>@@ -68,6 +62,7 @@
>   private static final String REGISTERED_BRANDINGS
>     = RWTServletContextListener.class.getName() + "registeredBrandings";
>   
>+  private static final ClassLoader CLASS_LOADER = RWTServletContextListener.class.getClassLoader();
>   
>   public static class ContextDestroyer implements Runnable {
>     protected final ServletContext servletContext;
>@@ -206,15 +201,13 @@
>   public static void registerResourceManagerFactory(
>     final ServletContext context )
>   {
>-    String factoryName
>-      = context.getInitParameter( RESOURCE_MANAGER_FACTORY_PARAM );
>+    String factoryName = context.getInitParameter( RESOURCE_MANAGER_FACTORY_PARAM );
>     if( factoryName != null ) {
>       try {
>-        Class clazz = Class.forName( factoryName );
>-        IResourceManagerFactory factory;
>-        factory = ( IResourceManagerFactory )clazz.newInstance();
>+        IResourceManagerFactory factory
>+          = ( IResourceManagerFactory )ClassUtil.newInstance( CLASS_LOADER, factoryName );
>         ResourceManager.register( factory );
>-      } catch( final Exception ex ) {
>+      } catch( ClassInstantiationException ex ) {
>         String text = "Failed to register resource manager factory ''{0}''.";
>         String msg = MessageFormat.format( text, new Object[] { factoryName } );
>         context.log( msg, ex );
>@@ -235,14 +228,13 @@
>         = context.getInitParameter( SETTING_STORE_FACTORY_PARAM );
>       if( factoryName != null ) {
>         try {
>-          Class clazz = Class.forName( factoryName );
>-          ISettingStoreFactory factory; 
>-          factory = ( ISettingStoreFactory )clazz.newInstance();
>+          ISettingStoreFactory factory
>+            = ( ISettingStoreFactory )ClassUtil.newInstance( CLASS_LOADER, factoryName ); 
>           SettingStoreManager.register( factory );
>-        } catch( final Exception ex ) {
>+        } catch( ClassInstantiationException cie ) {
>           String text = "Failed to register setting store factory ''{0}''.";
>           String msg = MessageFormat.format( text, new Object[] { factoryName } );
>-          context.log( msg, ex );
>+          context.log( msg, cie );
>         }
>       } else {
>         SettingStoreManager.register( new RWTFileSettingStoreFactory() );
>@@ -297,13 +289,12 @@
>       for( int i = 0; i < listenerNames.length; i++ ) {
>         String className = listenerNames[ i ].trim();
>         try {
>-          Class clazz = Class.forName( className );
>-          PhaseListener listener = ( PhaseListener )clazz.newInstance();
>+          PhaseListener listener = ( PhaseListener )ClassUtil.newInstance( CLASS_LOADER, className );
>           phaseListeners.add( listener );
>-        } catch( final Throwable thr ) {
>+        } catch( ClassInstantiationException cie ) {
>           String text = "Failed to register phase listener ''{0}''.";
>           String msg = MessageFormat.format( text, new Object[] { className } );
>-          context.log( msg, thr );
>+          context.log( msg, cie );
>         }
>       }
>     } else {
>@@ -345,13 +336,12 @@
>       for( int i = 0; i < resourceClassNames.length; i++ ) {
>         String className = resourceClassNames[ i ].trim();
>         try {
>-          Class clazz = Class.forName( className );
>-          IResource resource = ( IResource )clazz.newInstance();
>+          IResource resource = ( IResource )ClassUtil.newInstance( CLASS_LOADER, className );
>           resources.add( resource );
>-        } catch( final Throwable thr ) {
>+        } catch( ClassInstantiationException cie ) {
>           String text = "Failed to register resource ''{0}''.";
>           String msg = MessageFormat.format( text, new Object[] { className } );
>-          context.log( msg, thr );
>+          context.log( msg, cie );
>         }
>       }
>     }
>@@ -393,13 +383,11 @@
>           String fileName = parts[ 1 ];
>           try {
>             String themeName = "Unnamed Theme: " + themeId;
>-            StyleSheet styleSheet
>-              = CssFileReader.readStyleSheet( fileName, loader );
>+            StyleSheet styleSheet = CssFileReader.readStyleSheet( fileName, loader );
>             Theme theme = new Theme( themeId, themeName, styleSheet );
>             manager.registerTheme( theme );
>           } catch( Exception e ) {
>-            String text = "Failed to register custom theme ''{0}'' "
>-                          + "from resource ''{1}''";
>+            String text = "Failed to register custom theme ''{0}'' from resource ''{1}''";
>             Object[] args = new Object[] { themeId, fileName };
>             String msg = MessageFormat.format( text, args );
>             context.log( msg, e );
>@@ -438,14 +426,14 @@
>       for( int i = 0; i < brandings.length; i++ ) {
>         String className = brandings[ i ].trim();
>         try {
>-          Object newInstance = Class.forName( className ).newInstance();
>-          AbstractBranding branding = ( AbstractBranding )newInstance;
>+          AbstractBranding branding
>+            = ( AbstractBranding )ClassUtil.newInstance( CLASS_LOADER, className );
>           BrandingManager.register( branding );
>           registeredBrandings.add( branding );
>-        } catch( Exception e ) {
>+        } catch( ClassInstantiationException cie ) {
>           String text = "Failed to register branding ''{0}''.";
>           String msg = MessageFormat.format( text, new Object[] { className } );
>-          servletContext.log( msg, e );
>+          servletContext.log( msg, cie );
>         }
>       }
>       setRegisteredBrandings( servletContext, registeredBrandings );
>Index: src/org/eclipse/rwt/internal/lifecycle/EntryPointInstantiationException.java
>===================================================================
>RCS file: src/org/eclipse/rwt/internal/lifecycle/EntryPointInstantiationException.java
>diff -N src/org/eclipse/rwt/internal/lifecycle/EntryPointInstantiationException.java
>--- src/org/eclipse/rwt/internal/lifecycle/EntryPointInstantiationException.java	12 Jun 2008 13:12:18 -0000	1.2
>+++ /dev/null	1 Jan 1970 00:00:00 -0000
>@@ -1,25 +0,0 @@
>-/*******************************************************************************
>- * Copyright (c) 2002, 2007 Innoopract Informationssysteme GmbH.
>- * All rights reserved. This program and the accompanying materials
>- * are made available under the terms of the Eclipse Public License v1.0
>- * which accompanies this distribution, and is available at
>- * http://www.eclipse.org/legal/epl-v10.html
>- *
>- * Contributors:
>- *     Innoopract Informationssysteme GmbH - initial API and implementation
>- ******************************************************************************/
>-
>-package org.eclipse.rwt.internal.lifecycle;
>-
>-
>-/**
>- * TODO [rh] JavaDoc
>- */
>-public final class EntryPointInstantiationException extends RuntimeException {
>-
>-  private static final long serialVersionUID = 1L;
>-  
>-  EntryPointInstantiationException( final String msg, final Throwable cause ) {
>-    super( msg, cause );
>-  }
>-}
>Index: src/org/eclipse/rwt/internal/lifecycle/EntryPointManagerInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/lifecycle/EntryPointManagerInstance.java,v
>retrieving revision 1.1
>diff -u -r1.1 EntryPointManagerInstance.java
>--- src/org/eclipse/rwt/internal/lifecycle/EntryPointManagerInstance.java	6 Mar 2011 17:38:00 -0000	1.1
>+++ src/org/eclipse/rwt/internal/lifecycle/EntryPointManagerInstance.java	13 Mar 2011 15:10:49 -0000
>@@ -16,7 +16,7 @@
> import java.util.Map;
> 
> import org.eclipse.rwt.internal.service.ContextProvider;
>-import org.eclipse.rwt.internal.util.ParamCheck;
>+import org.eclipse.rwt.internal.util.*;
> import org.eclipse.rwt.lifecycle.IEntryPoint;
> import org.eclipse.rwt.service.ISessionStore;
> 
>@@ -60,9 +60,9 @@
>   }
>   
>   int createUI( final String name ) {
>+    ParamCheck.notNull( name, "name" );
>     IEntryPoint entryPoint;
>     Class clazz;
>-    ParamCheck.notNull( name, "name" );
>     synchronized( registry ) {
>       if( !registry.containsKey( name ) ) {
>         String text = "An entry point named ''{0}'' does not exist.";
>@@ -73,14 +73,7 @@
>     }
>     // no synchronization during instance creation to avoid lock in case
>     // of expensive constructor operations
>-    try {
>-      entryPoint = ( IEntryPoint )clazz.newInstance();
>-    } catch( Exception e ) {
>-      String text = "Failed to instantiate ''{0}''.";
>-      Object[] args = new Object[] { clazz.getName() };
>-      String msg = MessageFormat.format( text, args );
>-      throw new EntryPointInstantiationException( msg, e ) ;
>-    }      
>+    entryPoint = ( IEntryPoint )ClassUtil.newInstance( clazz );
>     ISessionStore session = ContextProvider.getSession();
>     session.setAttribute( EntryPointManager.CURRENT_ENTRY_POINT, name );
>     return entryPoint.createUI();
>Index: src/org/eclipse/rwt/internal/lifecycle/LifeCycleAdapterFactory.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/lifecycle/LifeCycleAdapterFactory.java,v
>retrieving revision 1.8
>diff -u -r1.8 LifeCycleAdapterFactory.java
>--- src/org/eclipse/rwt/internal/lifecycle/LifeCycleAdapterFactory.java	8 Oct 2010 15:50:42 -0000	1.8
>+++ src/org/eclipse/rwt/internal/lifecycle/LifeCycleAdapterFactory.java	13 Mar 2011 15:10:49 -0000
>@@ -15,6 +15,8 @@
> import java.util.HashMap;
> import java.util.Map;
> import org.eclipse.rwt.AdapterFactory;
>+import org.eclipse.rwt.internal.util.ClassInstantiationException;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.lifecycle.ILifeCycleAdapter;
> import org.eclipse.rwt.lifecycle.IWidgetLifeCycleAdapter;
> import org.eclipse.swt.internal.widgets.displaykit.DisplayLCAFacade;
>@@ -110,9 +112,8 @@
>       String classToLoad = buffer.toString();
>       ClassLoader loader = clazz.getClassLoader();
>       try {
>-        Class adapterClass = loader.loadClass( classToLoad );
>-        result = ( IWidgetLifeCycleAdapter )adapterClass.newInstance();
>-      } catch( final Throwable thr ) {
>+        result = ( IWidgetLifeCycleAdapter )ClassUtil.newInstance( loader, classToLoad );
>+      } catch( ClassInstantiationException thr ) {
>         // ignore and try to load next package name variant
>       }
>     }
>Index: src/org/eclipse/rwt/internal/lifecycle/LifeCycleFactoryInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/lifecycle/LifeCycleFactoryInstance.java,v
>retrieving revision 1.1
>diff -u -r1.1 LifeCycleFactoryInstance.java
>--- src/org/eclipse/rwt/internal/lifecycle/LifeCycleFactoryInstance.java	6 Mar 2011 17:38:00 -0000	1.1
>+++ src/org/eclipse/rwt/internal/lifecycle/LifeCycleFactoryInstance.java	13 Mar 2011 15:10:49 -0000
>@@ -12,10 +12,10 @@
>  ******************************************************************************/
> package org.eclipse.rwt.internal.lifecycle;
> 
>-import java.text.MessageFormat;
>-
>-import org.eclipse.rwt.internal.*;
>+import org.eclipse.rwt.internal.ConfigurationReader;
>+import org.eclipse.rwt.internal.IConfiguration;
> import org.eclipse.rwt.internal.service.ContextProvider;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.lifecycle.ILifeCycle;
> import org.eclipse.rwt.service.ISessionStore;
> 
>@@ -41,20 +41,12 @@
>   public ILifeCycle loadLifeCycle() {
>     LifeCycle result = globalLifeCycle;
>     if( result == null ) {
>-      String lifeCycleClassName = null;
>-      try {
>-        IConfiguration configuration = ConfigurationReader.getConfiguration();
>-        lifeCycleClassName = configuration.getLifeCycle();
>-        Class lifeCycleClass = Class.forName( lifeCycleClassName );
>-        result = ( LifeCycle )lifeCycleClass.newInstance();
>-        if( result.getScope().equals( Scope.APPLICATION ) ) {
>-          globalLifeCycle = result;
>-        }
>-      } catch( Exception ex ) {
>-        String text = "Could not load life cycle implementation {0}: {1}";
>-        Object[] args = new Object[] { lifeCycleClassName, ex.toString() };
>-        String msg = MessageFormat.format( text, args );
>-        throw new IllegalStateException( msg );
>+      IConfiguration configuration = ConfigurationReader.getConfiguration();
>+      String lifeCycleClassName = configuration.getLifeCycle();
>+      ClassLoader classLoader = LifeCycleFactoryInstance.class.getClassLoader();
>+      result = ( LifeCycle )ClassUtil.newInstance( classLoader, lifeCycleClassName );
>+      if( result.getScope().equals( Scope.APPLICATION ) ) {
>+        globalLifeCycle = result;
>       }
>     }
>     return result;
>Index: src/org/eclipse/rwt/internal/service/ServiceManagerInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/service/ServiceManagerInstance.java,v
>retrieving revision 1.1
>diff -u -r1.1 ServiceManagerInstance.java
>--- src/org/eclipse/rwt/internal/service/ServiceManagerInstance.java	6 Mar 2011 17:38:01 -0000	1.1
>+++ src/org/eclipse/rwt/internal/service/ServiceManagerInstance.java	13 Mar 2011 15:10:49 -0000
>@@ -24,6 +24,7 @@
> import javax.xml.parsers.DocumentBuilderFactory;
> 
> import org.eclipse.rwt.internal.resources.ResourceManager;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.resources.IResourceManager;
> import org.eclipse.rwt.service.IServiceHandler;
> import org.w3c.dom.*;
>@@ -72,8 +73,7 @@
>         Enumeration resources = manager.getResources( SERVICEHANDLER_XML );
>         while( resources != null && resources.hasMoreElements() ) {
>           URL url = ( URL )resources.nextElement();
>-          DocumentBuilderFactory factory
>-            = DocumentBuilderFactory.newInstance();
>+          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
>           DocumentBuilder builder = factory.newDocumentBuilder();
>           URLConnection con = url.openConnection();
>           con.setUseCaches( false );
>@@ -92,8 +92,7 @@
>             String name = attributes.getNamedItem( "class" ).getNodeValue();
>             String param = "requestparameter";
>             String id = attributes.getNamedItem( param ).getNodeValue();
>-            Class clazz = getClass().getClassLoader().loadClass( name );
>-            Object handlerInstance = clazz.newInstance();
>+            Object handlerInstance = ClassUtil.newInstance( getClass().getClassLoader(), name );
>             customHandlers.put( id, handlerInstance );
>           }
>         }
>Index: src/org/eclipse/rwt/internal/theme/ThemeAdapterUtil.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/rwt/internal/theme/ThemeAdapterUtil.java,v
>retrieving revision 1.12
>diff -u -r1.12 ThemeAdapterUtil.java
>--- src/org/eclipse/rwt/internal/theme/ThemeAdapterUtil.java	7 Mar 2011 16:29:04 -0000	1.12
>+++ src/org/eclipse/rwt/internal/theme/ThemeAdapterUtil.java	13 Mar 2011 15:10:49 -0000
>@@ -17,6 +17,8 @@
> 
> import org.eclipse.rwt.internal.engine.RWTContext;
> import org.eclipse.rwt.internal.lifecycle.LifeCycleAdapterUtil;
>+import org.eclipse.rwt.internal.util.ClassInstantiationException;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.swt.widgets.Widget;
> 
> 
>@@ -77,18 +79,9 @@
>   {
>     IThemeAdapter result = null;
>     try {
>-      Class adapterClass = classLoader.loadClass( className );
>-      result = ( IThemeAdapter )adapterClass.newInstance();
>-    } catch( final ClassNotFoundException e ) {
>+      result = ( IThemeAdapter )ClassUtil.newInstance( classLoader, className );
>+    } catch( ClassInstantiationException cie ) {
>       // ignore, try to load from next package name variant
>-    } catch( final InstantiationException e ) {
>-      String message =   "Failed to instantiate theme adapter class "
>-                       + className;
>-      throw new ThemeManagerException( message, e );
>-    } catch( final IllegalAccessException e ) {
>-      String message =   "Failed to instantiate theme adapter class "
>-                       + className;
>-      throw new ThemeManagerException( message, e );
>     }
>     return result;
>   }
>Index: src/org/eclipse/rwt/internal/util/ClassInstantiationException.java
>===================================================================
>RCS file: src/org/eclipse/rwt/internal/util/ClassInstantiationException.java
>diff -N src/org/eclipse/rwt/internal/util/ClassInstantiationException.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/rwt/internal/util/ClassInstantiationException.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,21 @@
>+/*******************************************************************************
>+ * Copyright (c) 2002, 2011 Innoopract Informationssysteme GmbH.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *     Innoopract Informationssysteme GmbH - initial API and implementation
>+ ******************************************************************************/
>+package org.eclipse.rwt.internal.util;
>+
>+
>+public final class ClassInstantiationException extends RuntimeException {
>+
>+  private static final long serialVersionUID = 1L;
>+  
>+  public ClassInstantiationException( String msg, Throwable cause ) {
>+    super( msg, cause );
>+  }
>+}
>Index: src/org/eclipse/rwt/internal/util/ClassUtil.java
>===================================================================
>RCS file: src/org/eclipse/rwt/internal/util/ClassUtil.java
>diff -N src/org/eclipse/rwt/internal/util/ClassUtil.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/rwt/internal/util/ClassUtil.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,57 @@
>+/*******************************************************************************
>+ * Copyright (c) 2011 RÃ¼diger Herrmann and others.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    RÃ¼diger Herrmann - initial API and implementation
>+ ******************************************************************************/
>+package org.eclipse.rwt.internal.util;
>+
>+import java.lang.reflect.Constructor;
>+
>+
>+public final class ClassUtil {
>+  
>+  public static Object newInstance( ClassLoader classLoader, String className ) {
>+    ParamCheck.notNull( className, "className" );
>+    ParamCheck.notNull( classLoader, "classLoader" );
>+    Class type;
>+    try {
>+      type = classLoader.loadClass( className );
>+    } catch( ClassNotFoundException cnfe ) {
>+      throw new ClassInstantiationException( "Failed to load type: " + className, cnfe );
>+    }
>+    return newInstance( type );
>+  }
>+  
>+  public static Object newInstance( Class type ) {
>+    return newInstance( type, null, null );
>+  }
>+
>+  public static Object newInstance( Class type, Class[] paramTypes, Object[] paramValues ) {
>+    ParamCheck.notNull( type, "type" );
>+    try {
>+      return createInstance( type, paramTypes, paramValues );
>+    } catch( Exception e ) {
>+      String msg = "Failed to create instance of type: " + type.getName();
>+      throw new ClassInstantiationException( msg, e );
>+    }
>+  }
>+
>+  private static Object createInstance( Class type, Class[] paramTypes, Object[] paramValues ) 
>+    throws Exception 
>+  {
>+    Constructor constructor = type.getDeclaredConstructor( paramTypes );
>+    if( !constructor.isAccessible() ) {
>+      constructor.setAccessible( true );
>+    } 
>+    return constructor.newInstance( paramValues );
>+  }
>+
>+  private ClassUtil() {
>+    // prevent instantiation
>+  }
>+}
>Index: src/org/eclipse/swt/internal/graphics/ImageFactoryInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/swt/internal/graphics/ImageFactoryInstance.java,v
>retrieving revision 1.2
>diff -u -r1.2 ImageFactoryInstance.java
>--- src/org/eclipse/swt/internal/graphics/ImageFactoryInstance.java	7 Mar 2011 17:34:46 -0000	1.2
>+++ src/org/eclipse/swt/internal/graphics/ImageFactoryInstance.java	13 Mar 2011 15:10:52 -0000
>@@ -17,6 +17,7 @@
> import java.util.Map;
> 
> import org.eclipse.rwt.internal.resources.ResourceManager;
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.rwt.resources.IResourceManager;
> import org.eclipse.swt.graphics.Device;
> import org.eclipse.swt.graphics.Image;
>@@ -80,18 +81,9 @@
>   }
> 
>   private static Image createImageInstance( Device device, InternalImage internalImage ) {
>-    Image result;
>-    try {
>-      Class imageClass = Image.class;
>-      Class[] paramList = new Class[] { Device.class, InternalImage.class };
>-      Constructor constructor = imageClass.getDeclaredConstructor( paramList );
>-      constructor.setAccessible( true );
>-      Object[] args = new Object[] { device, internalImage };
>-      result = ( Image )constructor.newInstance( args );
>-    } catch( final Exception e ) {
>-      throw new RuntimeException( "Failed to instantiate Image", e );
>-    }
>-    return result;
>+    Class[] paramTypes = new Class[] { Device.class, InternalImage.class };
>+    Object[] paramValues = new Object[] { device, internalImage };
>+    return ( Image )ClassUtil.newInstance( Image.class, paramTypes, paramValues );
>   }
> 
>   private static InputStream getInputStream( String path, ClassLoader imageLoader ) {
>Index: src/org/eclipse/swt/internal/graphics/ResourceFactoryInstance.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt/org.eclipse.rap.rwt/src/org/eclipse/swt/internal/graphics/ResourceFactoryInstance.java,v
>retrieving revision 1.1
>diff -u -r1.1 ResourceFactoryInstance.java
>--- src/org/eclipse/swt/internal/graphics/ResourceFactoryInstance.java	6 Mar 2011 17:38:01 -0000	1.1
>+++ src/org/eclipse/swt/internal/graphics/ResourceFactoryInstance.java	13 Mar 2011 15:10:52 -0000
>@@ -16,6 +16,7 @@
> import java.util.HashMap;
> import java.util.Map;
> 
>+import org.eclipse.rwt.internal.util.ClassUtil;
> import org.eclipse.swt.graphics.*;
> 
> 
>@@ -90,45 +91,20 @@
>   }
> 
>   private static Color createColorInstance( final int colorNr ) {
>-    Color result = null;
>-    try {
>-      Class[] paramList = new Class[] { int.class };
>-      Constructor constr = Color.class.getDeclaredConstructor( paramList );
>-      constr.setAccessible( true );
>-      Object[] args = new Object[] { new Integer( colorNr ) };
>-      result = ( Color )constr.newInstance( args );
>-    } catch( final Exception e ) {
>-      throw new RuntimeException( "Failed to instantiate Color", e );
>-    }
>-    return result;
>+    Class[] paramTypes = new Class[] { int.class };
>+    Object[] paramValues = new Object[] { new Integer( colorNr ) };
>+    return ( Color )ClassUtil.newInstance( Color.class, paramTypes, paramValues );
>   }
> 
>   private static Font createFontInstance( final FontData fontData ) {
>-    Font result = null;
>-    try {
>-      Class[] paramList = new Class[] { FontData.class };
>-      Constructor constr = Font.class.getDeclaredConstructor( paramList );
>-      constr.setAccessible( true );
>-      result = ( Font )constr.newInstance( new Object[] { fontData } );
>-    } catch( final Exception e ) {
>-      throw new RuntimeException( "Failed to instantiate Font", e );
>-    }
>-    return result;
>+    Class[] paramTypes = new Class[] { FontData.class };
>+    Object[] paramValues = new Object[] { fontData };
>+    return ( Font )ClassUtil.newInstance( Font.class, paramTypes, paramValues );
>   }
> 
>   private static Cursor createCursorInstance( final int style ) {
>-    Cursor result = null;
>-    try {
>-      Class cursorClass = Cursor.class;
>-      Class[] paramList = new Class[] { int.class };
>-      Constructor constr = cursorClass.getDeclaredConstructor( paramList );
>-      constr.setAccessible( true );
>-      result = ( Cursor )constr.newInstance( new Object[] {
>-        new Integer( style )
>-      } );
>-    } catch( final Exception e ) {
>-      throw new RuntimeException( "Failed to instantiate Cursor", e );
>-    }
>-    return result;
>+    Class[] paramTypes = new Class[] { int.class };
>+    Object[] paramValues = new Object[] { new Integer( style ) };
>+    return ( Cursor )ClassUtil.newInstance( Cursor.class, paramTypes, paramValues );
>   }
> }
>#P org.eclipse.rap.rwt.test
>Index: src/org/eclipse/RWTHostTestSuite.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt.test/org.eclipse.rap.rwt.test/src/org/eclipse/RWTHostTestSuite.java,v
>retrieving revision 1.71
>diff -u -r1.71 RWTHostTestSuite.java
>--- src/org/eclipse/RWTHostTestSuite.java	12 Mar 2011 19:53:10 -0000	1.71
>+++ src/org/eclipse/RWTHostTestSuite.java	13 Mar 2011 15:10:53 -0000
>@@ -26,6 +26,7 @@
> import org.eclipse.rwt.internal.service.*;
> import org.eclipse.rwt.internal.theme.*;
> import org.eclipse.rwt.internal.theme.css.*;
>+import org.eclipse.rwt.internal.util.ClassUtil_Test;
> import org.eclipse.rwt.internal.widgets.JSExecutor_Test;
> import org.eclipse.rwt.lifecycle.*;
> import org.eclipse.rwt.service.*;
>@@ -115,6 +116,7 @@
>     suite.addTestSuite( LifeCycleServiceHandler_Test.class );
>     suite.addTestSuite( StartupPageTemplateHolder_Test.class );
>     suite.addTestSuite( EncodingUtil_Test.class );
>+    suite.addTestSuite( ClassUtil_Test.class );
> 
>     suite.addTestSuite( Display_Test.class );
>     suite.addTestSuite( Monitor_Test.class );
>Index: src/org/eclipse/rwt/internal/engine/RWTContext_Test.java
>===================================================================
>RCS file: /cvsroot/rt/org.eclipse.rap/runtime.rwt.test/org.eclipse.rap.rwt.test/src/org/eclipse/rwt/internal/engine/RWTContext_Test.java,v
>retrieving revision 1.2
>diff -u -r1.2 RWTContext_Test.java
>--- src/org/eclipse/rwt/internal/engine/RWTContext_Test.java	7 Mar 2011 17:06:35 -0000	1.2
>+++ src/org/eclipse/rwt/internal/engine/RWTContext_Test.java	13 Mar 2011 15:10:53 -0000
>@@ -14,6 +14,7 @@
> import junit.framework.TestCase;
> 
> import org.eclipse.rwt.internal.engine.RWTContext.InstanceTypeFactory;
>+import org.eclipse.rwt.internal.util.ClassInstantiationException;
> 
> 
> public class RWTContext_Test extends TestCase {
>@@ -81,7 +82,7 @@
>     try {
>       new RWTContext( new Class[] { AbstractClass.class } );
>       fail();
>-    } catch( IllegalArgumentException expected ) {
>+    } catch( ClassInstantiationException expected ) {
>     }    
>   }
>   
>Index: src/org/eclipse/rwt/internal/util/ClassUtil_Test.java
>===================================================================
>RCS file: src/org/eclipse/rwt/internal/util/ClassUtil_Test.java
>diff -N src/org/eclipse/rwt/internal/util/ClassUtil_Test.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/rwt/internal/util/ClassUtil_Test.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,153 @@
>+/*******************************************************************************
>+ * Copyright (c) 2011 RÃ¼diger Herrmann and others.
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    RÃ¼diger Herrmann - initial API and implementation
>+ ******************************************************************************/
>+package org.eclipse.rwt.internal.util;
>+
>+import java.lang.reflect.InvocationTargetException;
>+
>+import junit.framework.TestCase;
>+
>+
>+public class ClassUtil_Test extends TestCase {
>+  
>+  private ClassLoader classLoader;
>+  
>+  static class ConstructorException extends RuntimeException {
>+    private static final long serialVersionUID = 1L;
>+  }
>+  
>+  public static abstract class AbstractClass {
>+  }
>+
>+  public static class PublicClass {
>+    Object objectParam;
>+    String stringParam;
>+    Long longParam;
>+    public PublicClass() {
>+    }
>+    private PublicClass( Object objectParam ) {
>+      this.objectParam = objectParam;
>+    }
>+    public PublicClass( String stringParam, Long longParam ) {
>+      this.stringParam = stringParam;
>+      this.longParam = longParam;
>+    }
>+  }
>+  
>+  static class ClassWithPrivateConstructor {
>+    private ClassWithPrivateConstructor() {
>+    }
>+  }
>+  
>+  static class ClassWithExceptionInConstructor {
>+    ClassWithExceptionInConstructor() {
>+      throw new ConstructorException();
>+    }
>+  }
>+  
>+  public void testNewInstanceWithNullClass() {
>+    try {
>+      ClassUtil.newInstance( ( Class )null );
>+      fail();
>+    } catch( NullPointerException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithAbstractClass() {
>+    try {
>+      ClassUtil.newInstance( AbstractClass.class );
>+      fail();
>+    } catch( ClassInstantiationException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithInterface() {
>+    try {
>+      ClassUtil.newInstance( Runnable.class );
>+      fail();
>+    } catch( ClassInstantiationException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithPublicClass() {
>+    Object instance = ClassUtil.newInstance( ClassWithPrivateConstructor.class );
>+    assertEquals( instance.getClass(), ClassWithPrivateConstructor.class );
>+  }
>+  
>+  public void testNewInstanceWithPrivateDefaultConstructor() {
>+    Object instance = ClassUtil.newInstance( PublicClass.class );
>+    assertEquals( instance.getClass(), PublicClass.class );
>+  }
>+  
>+  public void testNewInstanceWithEceptionInConstructor() {
>+    try {
>+      ClassUtil.newInstance( ClassWithExceptionInConstructor.class );
>+      fail();
>+    } catch( ClassInstantiationException e ) {
>+      assertEquals( e.getCause().getClass(), InvocationTargetException.class );
>+    }
>+  }
>+  
>+  public void testNewInstanceWithNullClassNameAndClassLoader() {
>+    try {
>+      ClassUtil.newInstance( classLoader, null );
>+      fail();
>+    } catch( NullPointerException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithNullClassLoader() {
>+    try {
>+      ClassUtil.newInstance( null, "" );
>+      fail();
>+    } catch( NullPointerException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithNonExistingClassName() {
>+    try {
>+      ClassUtil.newInstance( classLoader, "does.not.exist" );
>+      fail();
>+    } catch( ClassInstantiationException expected ) {
>+    }
>+  }
>+  
>+  public void testNewInstanceWithExistingClassName() {
>+    Object instance = ClassUtil.newInstance( classLoader, PublicClass.class.getName() );
>+    assertEquals( instance.getClass(), PublicClass.class );
>+  }
>+  
>+  
>+  public void testNewInstanceWithPublicParameterizedConstructor() {
>+    String stringValue = "string";
>+    Long longValue = new Long( 0 );
>+    Class[] paramTypes = new Class[] { String.class, Long.class };
>+    Object[] paramValues = new Object[] { stringValue, longValue };
>+    Object instance = ClassUtil.newInstance( PublicClass.class, paramTypes, paramValues );
>+    assertEquals( instance.getClass(), PublicClass.class );
>+    PublicClass publicClass = ( PublicClass )instance;
>+    assertEquals( stringValue, publicClass.stringParam );
>+    assertEquals( longValue, publicClass.longParam );
>+  }
>+  
>+  public void testNewInstanceWithPrivateParameterizedConstructor() {
>+    Object objectValue = new Object();
>+    Class[] paramTypes = new Class[] { Object.class };
>+    Object[] paramValues = new Object[] { objectValue };
>+    Object instance = ClassUtil.newInstance( PublicClass.class, paramTypes, paramValues );
>+    assertEquals( instance.getClass(), PublicClass.class );
>+    PublicClass publicClass = ( PublicClass )instance;
>+    assertEquals( objectValue, publicClass.objectParam );
>+  }
>+  
>+  protected void setUp() throws Exception {
>+    classLoader = ClassUtil_Test.class.getClassLoader();
>+  }
>+}

Actions: View | Diff

Attachments on bug 339827: 191077