JDK Development ToolsGeneral Information
The following documents contain important information you will need to know to get the most out of the JDK tools.
Basic Tools
These tools are the foundation of the JDK. They are the tools you use to create and build applications.
Security Tools
These security tools help you set security policies on your system and create apps that can work within the scope of security policies set at remote sites.
These security tools help you obtain, list, and manage Kerberos tickets.
| Tool Name | Brief Description | Links to Reference Pages |
| kinit | Tool for obtaining Kerberos v5 tickets. Equivalent functionality is available on the Solaris operating system via the kinit tool. For example, for Solaris 8, see the kinit reference page. | [Windows] |
| klist | Command-line tool to list entries in credential cache and key tab. Equivalent functionality is available on the Solaris operating system via the klist tool. For example, for Solaris 8, see the klist reference page. | [Windows] |
| ktab | Command-line tool to help the user manage entires in the key table. Equivalent functionality is available on the Solaris operating system via the kadmin tool. For example, for Solaris 8, see the kadmin reference page. | [Windows] |
This tool helps to create localizable apps.
| Tool Name | Brief Description | Links to Reference Pages |
| native2ascii | Convert text to Unicode Latin-1. | [Solaris and Linux] [Windows] |
Remote Method Invocation (RMI) Tools
These tools help to create apps that interact over the Web or other network.
These tools are used when creating applications that use OMG-standard IDL and CORBA/IIOP.
| Tool Name | Brief Description |
| tnameserv | Provides access to the naming service. |
| idlj | Generates .java files that map an OMG IDL interface and enable an application written in the Java programming language to use CORBA functionality. |
| orbd | Provides support for clients to transparently locate and invoke persistent objects on servers in the CORBA environment. ORBD is used instead of the Transient Naming Service, tnameserv. ORBD includes both a Transient Naming Service and a Persistent Naming Service. The orbd tool incorporates the functionality of a Server Manager, an Interoperable Naming Service, and a Bootstrap Name Server. When used in conjunction with the servertool, the Server Manager locates, registers, and activates a server when a client wants to access the server. |
| servertool | Provides ease-of-use interface for the application programmers to register, unregister, startup, and shutdown a server. |
Java Deployment Tools
Utilities for use in conjunction with deployment of java applications and applets on the web.
| Tool Name | Brief Description |
| pack200 | Transforms a JAR file into a compressed pack200 file using the Java gzip compressor. The compressed packed files are highly compressed JARs, which can be directly deployed, saving bandwidth and reducing download time. |
| unpack200 | Transforms a packed file produced by pack200 into a JAR file. |
Utilities for use in conjunction with the Java Plug-in.
| Tool Name | Brief Description with Links to Reference Pages |
| htmlconverter | Converts an HTML page (file) containing applets to the OBJECT / EMBED tag format for Java Plug-in. |
Java Web Start Tools
Utilities for use in conjunction with Java Web Start.
| Tool Name | Brief Description |
| javaws | Command line tool for launching Java Web Start and setting various options.
See Java Web Start Guide for more information. |
Java Troubleshooting, Profiling, Monitoring and Management Tools
| Tool Name | Brief Description |
| jvisualvm | A graphical tool that provides detailed information about the Java technology-based applications (Java applications) while they are running in a Java Virtual Machine. Java VisualVM provides memory and CPU profiling, heap dump analysis, memory leak detection, access to MBeans, and garbage collection.See Java VisualVM for more information. |
| jconsole | A JMX-compliant graphical tool for monitoring a Java virtual machine. It can monitor both local and remote JVMs. It can also monitor and manage an application.
See Monitoring and Management for the Java Platform for more information. |
Java Web Services Tools
| Tool Name | Brief Description |
| schemagen | Schema generator for Java Architecture for XML Binding. |
| wsgen | Tool to generate JAX-WS portable artifacts. |
| wsimport | Tool to generate JAX-WS portable artifacts. |
| xjc | Binding compiler for Java Ardchitecture for XML Binding. |
You can use the following tools to monitor JVM performance statistics. The tools described in this section are unsupported and experimental, and should be used with that in mind. They may not be available in future JDK versions.
These tools are supported on all platforms except Windows 98 and Windows ME.
| Tool Name | Brief Description |
| jps | Experimental: JVM Process Status Tool - Lists instrumented HotSpot Java virtual machines on a target system. |
| jstat | Experimental: JVM Statistics Monitoring Tool - Attaches to an instrumented HotSpot Java virtual machine and collects and logs performance statistics as specified by the command line options. |
| jstatd | Experimental: JVM jstat Daemon - Launches an RMI server application that monitors for the creation and termination of instrumented HotSpot Java virtual machines and provides a interface to allow remote monitoring tools to attach to Java virtual machines running on the local system. |
The following tools can be used for specific troubleshooting tasks. The tools described in this section are unsupported and
experimental in nature and should be used with that in mind. They may not be available in future JDK versions.
Some of these tools are not currently available on Windows platforms.
| Tool Name | Brief Description |
| jinfo | Experimental - Configuration Info for Java - Prints configuration information for for a given process or core file or a remote debug server. |
| jhat | Experimental - Heap Dump Browser - Starts a web server on a heap dump file (eg, produced by jmap -dump), allowing the heap to be browsed. |
| jmap | Experimental - Memory Map for Java - Prints shared object memory maps or heap memory details of a given process or core file or a remote debug server. |
| jsadebugd | Experimental - Serviceability Agent Debug Daemon for Java - Attaches to a process or core file and acts as a debug server. |
| jstack | Experimental - Stack Trace for Java - Prints a stack trace of threads for a given process or core file or remote debug server. |
Refer to the Java SE Troubleshooting web site for descriptions of tools, options, and other information to use in analyzing problems. The documents at this site contain suggestions about what to try before submitting a bug report and what data to collect for a report.
The following tool can be used to run scripts that interact with the Java platfrom. This tool is unsupported and
experimental in nature and should be used with that in mind. It might not be available in future JDK versions.
| Tool Name | Brief Description |
| jrunscript | Experimental - Script shell for Java - Runs a script. |
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