New features in J2EE 1,4

Java API for XML-Based RPC (JAX-RPC), aka Java Web Services
You can use the Java API for XML-based RPC (JAX-RPC) to build Web applications and Web services, incorporating XML-based RPC functionality according to the SOAP 1.1 specification.
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JACC, Java Authorization Contract for Containers
The Java Authorization Contract for Containers (Java ACC) specification (JSR-115) defines new java.security.Permission classes to satisfy the Java 2 Platform, Enterprise Edition (J2EE) authorization model. The Java ACC specification defines the binding of container access decisions to operations on instances of these permission classes.
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Java API for XML Registries (JAXR) Overview

The Java API for XML Registries (JAXR) provides a uniform and standard Java API for accessing different kinds of XML Registries. An XML registry is an enabling infrastructure for building, deploying, and discovering Web services.

Currently there are a variety of specifications for XML registries including, most notably, the ebXML Registry and Repository standard, which is being developed by OASIS and U.N./CEFACT, and the UDDI specification, which is being developed by a vendor consortium.

JAXR enables Java software programmers to use a single, easy-to-use abstraction API to access a variety of XML registries. Simplicity and ease of use are facilitated within JAXR by a unified JAXR information model, which describes content and metadata within XML registries.
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Java Management Extensions (JMX)
Java Management Extensions (JMX) technology provides the tools for building distributed, Web-based, modular and dynamic solutions for managing and monitoring devices, applications, and service-driven networks. By design, this standard is suitable for adapting legacy systems, implementing new management and monitoring solutions, and plugging into those of the future.

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Mgmt: J2EE Management Specification
The J2EE Management specification (JSR 077) includes standard mappings of the model to the Common Information Model (CIM), to an SNMP Management Information Base (MIB), and to the Java object model through a server resident Enterprise JavaBeans (EJB) component, known as the J2EE Management EJB Component (MEJB). The MEJB provides interoperable remote access to the model from any standard J2EE application.
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