| Name | Description | Type | Package | Framework | 
| Activator | An OSGi bundle activator for ActiveMQ which adapts the FactoryFinder to the OSGi environment. | Class | org.apache.activemq.util.osgi | Apache ActiveMQ | 
| BitArray | Simple BitArray to enable setting multiple boolean values efficently Used instead of BitSet because BitSet does not allow for efficent serialization. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| BitArrayBin | Holder for many bitArrays - used for message auditSee Also:Serialized Form | Class | org.apache.activemq.util | Apache ActiveMQ | 
| BooleanEditor | Used by xbean to set booleans. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| BrokerSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| ByteArrayInputStream | Very similar to the java. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ByteArrayOutputStream | Very similar to the java. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ByteSequence | Class | org.apache.activemq.util | Apache ActiveMQ | |
| ByteSequenceData | Used to write and read primitives to and from a ByteSequence. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| Callback | A simple callback object used by objects to provide automatic transactional or exception handling blocks. | Interface | org.apache.activemq.util | Apache ActiveMQ | 
| ClassLoadingAwareObjectInputStream | Class | org.apache.activemq.util | Apache ActiveMQ | |
| ConsumerThread | Class | org.apache.activemq.util | Apache ActiveMQ | |
| DataByteArrayInputStream | Class | org.apache.activemq.util | Apache ActiveMQ | |
| DataByteArrayOutputStream | Class | org.apache.activemq.util | Apache ActiveMQ | |
| DefaultIOExceptionHandler | Class | org.apache.activemq.util | Apache ActiveMQ | |
| FactoryFinder | Class | org.apache.activemq.util | Apache ActiveMQ | |
| FactoryFinder .ObjectFactory | The strategy that the FactoryFinder uses to find load and instantiate Objects can be changed out by calling the | Interface | org.apache.activemq.util.FactoryFinder | Apache ActiveMQ | 
| FactoryFinder .StandaloneObjectFactory | The default implementation of Object factory which works well in standalone applications. | Class | org.apache.activemq.util.FactoryFinder | Apache ActiveMQ | 
| FilenameGuardFilter | Class | org.apache.activemq.util | Apache ActiveMQ | |
| GenerateJDBCStatements | Class | org.apache.activemq.util | Apache ActiveMQ | |
| HexSupport | Used to convert to hex from byte arrays and back. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| IdGenerator | Generator for Globally unique Strings. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| IndentPrinter | Class | org.apache.activemq.util | Apache ActiveMQ | |
| InetAddressUtil | Class | org.apache.activemq.util | Apache ActiveMQ | |
| IntrospectionSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| IntSequenceGenerator | Class | org.apache.activemq.util | Apache ActiveMQ | |
| IOExceptionHandler | Interface | org.apache.activemq.util | Apache ActiveMQ | |
| IOExceptionSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| IOHelper | Collection of File and Folder utility methods. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| JMSExceptionSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| JmsLogAppender | A JMS 1. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| JmsLogAppenderSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| JMXSupport | Class | org.apache.activemq.util | Apache ActiveMQ | |
| JndiJmsLogAppender | A JMS 1. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| LeaseLockerIOExceptionHandler | Class | org.apache.activemq.util | Apache ActiveMQ | |
| LFUCache | LFU cache implementation based on http://dhruvbird. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| LinkedNode | Provides a base class for you to extend when you want object to maintain a doubly linked list to other objects without using a collection class. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| LockFile | Used to lock a File. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| LogWriterFinder | Class used to find a LogWriter implementation, and returning a LogWriter object, taking as argument the name of a log writer. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| LongSequenceGenerator | Class | org.apache.activemq.util | Apache ActiveMQ | |
| LRUCache | Class | org.apache.activemq.util | Apache ActiveMQ | |
| MapHelper | Class | org.apache.activemq.util | Apache ActiveMQ | |
| MarshallingSupport | The fixed version of the UTF8 encoding function. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| MemoryIntPropertyEditor | Used by xbean to set integers. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| MemoryPropertyEditor | Used by xbean to set longs. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ProducerThread | Class | org.apache.activemq.util | Apache ActiveMQ | |
| Promise | Used to implement callback based result passing of a promised computation. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| PromiseCallback | Class | org.apache.activemq.util | Apache ActiveMQ | |
| RecoverableRandomAccessFile | Class | org.apache.activemq.util | Apache ActiveMQ | |
| RestFilter | Adds support for HTTP PUT, MOVE and DELETE methods. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ServiceListener | Interface | org.apache.activemq.util | Apache ActiveMQ | |
| ServiceStopper | A helper class used to stop a bunch of services, catching and logging any exceptions and then throwing the first exception when everything is stoped. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ServiceSupport | A helper class for working with services together with a useful base class for service implementations. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| StopWatch | A very simple stop watch. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| StoreUtil | Class | org.apache.activemq.util | Apache ActiveMQ | |
| StringArrayConverter | Class for converting to/from String[] to be used instead of a PropertyEditor which otherwise causes | Class | org.apache.activemq.util | Apache ActiveMQ | 
| StringToListOfActiveMQDestinationConverter | Special converter for String -> List to be used instead of a PropertyEditor which otherwise causes | Class | org.apache.activemq.util | Apache ActiveMQ | 
| SubscriptionKey | Class | org.apache.activemq.util | Apache ActiveMQ | |
| Suspendable | Interface implemented by services that can be suspended and resumed. | Interface | org.apache.activemq.util | Apache ActiveMQ | 
| ThreadPoolUtils | Utility methods for working with thread pools ExecutorService. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| ThreadTracker | Debugging tool to track entry points through code, useful to see runtime call paths To use, add to a method as follows: | Class | org.apache.activemq.util | Apache ActiveMQ | 
| TimeUtils | Class | org.apache.activemq.util | Apache ActiveMQ | |
| TransactionTemplate | A helper class for running code with a PersistenceAdapter in a transaction. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| TypeConversionSupport | Type conversion support for ActiveMQ. | Class | org.apache.activemq.util | Apache ActiveMQ | 
| URISupport | Utility class that provides methods for parsing URI's This class can be used to split composite URI's into their component parts and is used to extract any | Class | org.apache.activemq.util | Apache ActiveMQ | 
| URISupport .CompositeData | A composite URI can be split into one or more CompositeData object which each represent the individual URIs that comprise the composite one. | Class | org.apache.activemq.util.URISupport | Apache ActiveMQ | 
| WrappedException | Class | org.apache.activemq.util | Apache ActiveMQ | |
| XASupport | Class | org.apache.activemq.util | Apache ActiveMQ | |