NonStop Server for Java Programmer's Reference (NSJ 4.2+)

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Introduction to NonStop Server for
Java 4
The HP NonStop Server for Java 4 is a Java environment that supports compact, concurrent,
dynamic, portable programs for the enterprise server. The NonStop Server for Java 4 requires
the HP NonStop Kernel Open System Services (OSS) environment. The NonStop Server for
Java 4 uses the HP NonStop Kernel operating system to add the NonStop system fundamentals
of scalability and program persistence to the Java environment.
NonStop Server for Java 4 is based on the Java 2 Platform, Standard Edition (J2SE) SDK 1.4.2
reference Java implementation for Solaris, licensed by HP from Sun Microsystems, Inc. The
NonStop Server for Java 4 is a conformant version of the Sun Microsystems J2SE SDK 1.4.2
and is branded as "Java Compatible." The NonStop Server for Java 4 complies with all
conformance tests in version 1.4.2 of the Java Conformance Kit (JCK).
The NonStop Server for Java 4 supports the Java Platform Debugger Architecture (JPDA),
which consists of three interfaces designed for use by debuggers in development environments
for desktop systems. This is described in the Sun Microsystems documentation for JPDA
(http://java.sun.com/j2se/1.4.2/docs/guide/jpda/index.html).
The NonStop Server for Java 4 also supports the Java Virtual Machine Profiler Interface
(JVMPI), which is used to develop profilers that work in conjunction with the Java VM
implementation. For more information see Application Profiling.
NonStop Server for Java 4 supports the Sun Microsystems enhancement to AWT called
"headless support" that allows a Java VM to indicate whether a display, keyboard, sound, or
mouse operation can be supported in a graphics environment. Because of the nonvisual nature
of NonStop servers, NonStop Server for Java 4 is always a headless Java VM. For
implementation-specific information, see Headless Support.
This NonStop Server for Java Programmer's Reference identifies the changes in the HP
adaptation of the reference Java implementation, emphasizing the differences between the
reference implementation and the NonStop Server for Java 4. For more information on the
standard architecture, see the Sun Microsystems documentation.
This section explains these subjects:
HotSpot Server Java Virtual Machine●
Java Software Development Kit (SDK) Highlights●