| org.eclipse.net4j.util | Utility classes. | 
| org.eclipse.net4j.util.cache | A generic caching and memory monitoring framework. | 
| org.eclipse.net4j.util.collection | Additional collection-like interfaces and classes. | 
| org.eclipse.net4j.util.concurrent | Utility interfaces and classes commonly useful in concurrent programming. | 
| org.eclipse.net4j.util.confirmation | A framework for providing confirmation from users. | 
| org.eclipse.net4j.util.container | A framework of notifying collections and wiring containers. | 
| org.eclipse.net4j.util.container.delegate | Hybrid interfaces of notifying containers and the Java Collection Framework. | 
| org.eclipse.net4j.util.event | A framework for sending of and listening to events. | 
| org.eclipse.net4j.util.factory | A framework for factory based instance creation. | 
| org.eclipse.net4j.util.fsm |  | 
| org.eclipse.net4j.util.io | Interfaces and classes for I/O. | 
| org.eclipse.net4j.util.lifecycle | A framework for components with a simple lifecycle. | 
| org.eclipse.net4j.util.om | Interfaces and classes for platform-independent operations and maintenance (O&M). | 
| org.eclipse.net4j.util.om.job |  | 
| org.eclipse.net4j.util.om.log | Interfaces and classes for platform-independent logging. | 
| org.eclipse.net4j.util.om.monitor | Interfaces and classes for platform-independent progress monitoring. | 
| org.eclipse.net4j.util.om.pref | Interfaces and classes for platform-independent preference management. | 
| org.eclipse.net4j.util.om.trace | Interfaces and classes for platform-independent tracing. | 
| org.eclipse.net4j.util.options | A framework for option containers that fire change events. | 
| org.eclipse.net4j.util.properties | A framework to describe and access properties of POJOs and to support Eclipse
  property testers and
  IPropertySources in a uniform way. | 
| org.eclipse.net4j.util.ref | A framework for memory-sensitive keyed references and value maps. | 
| org.eclipse.net4j.util.registry | Interfaces and classes for general purpose registries. | 
| org.eclipse.net4j.util.security | Interfaces and classes for security, negotiation, authentication, authorization and cryptography. | 
| org.eclipse.net4j.util.security.operations |  | 
| org.eclipse.net4j.util.transaction | A framework for transactional operations. | 
| org.eclipse.net4j.util.ui | Reusable UI components. | 
| org.eclipse.net4j.util.ui.actions | Reusable actions and action delegates. | 
| org.eclipse.net4j.util.ui.confirmation | Confirmation dialogs. | 
| org.eclipse.net4j.util.ui.container | An element wizard framework for managed containers. | 
| org.eclipse.net4j.util.ui.dnd | Helpers for drag and drop support. | 
| org.eclipse.net4j.util.ui.handlers | Reusable command handlers. | 
| org.eclipse.net4j.util.ui.prefs | Helpers for O&M based preference pages. | 
| org.eclipse.net4j.util.ui.proposals | Copied from org.eclipse.ui.texteditor. | 
| org.eclipse.net4j.util.ui.security | Credentials dialogs. | 
| org.eclipse.net4j.util.ui.views | Helpers for Eclipse view parts. | 
| org.eclipse.net4j.util.ui.widgets | A library with reusable widgets. |