Java

JavaTM Virtual Machines

Documentation Contents

The J2SE Development Kit (JDK) provides one or more implementations of the Java virtual machine (VM):

Some features of Java HotSpot technology, common to both VM implementations, are the following.

New Features and Changes

The following are some of the recently added features in the Java HotSpot VMs.

Enhancements in J2SE 1.5.0:

Enhancements in J2SE 1.4.x:

Command-Line Options

Some operating characteristics of the Java HotSpot VM can be controlled by the use of command-line flags. The command-line options supported by the Java HotSpot VMs are described on the reference pages for the Java application launcher (Microsoft Windows | Solaris Operating Environment | Linux). Non-standard options recognized by the current implementations of the VMs, but not necessarily by future or non-Sun implementations, are described on the Java HotSpot VM Options web page.

See Also

The following additional documentation is available on the Sun web site.

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