CentOS 7.0 - man page for javaws-itweb (centos section 1)
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javaws - a Java Web Start client
javaws [-run-options] jnlp-file
javaws is an implementation of a JNLP client. It uses a JNLP (Java Network Launch Proto-
col) file to securely run a remote Java application or a Java applet. This implementation
of javaws is from the IcedTea project and is based on the NetX project.
A JNLP file is an xml file that describes how to securely run a remote Java application or
a Java applet.
When specifying options, the name of the jnlp file must be the last argument to javaws -
all the options must preceede it.
The jnlp-file can either be a url or a local path.
By default javaws will launch the jnlp file specified on the command line. The control
options can be used to change this behaviour.
-about Shows a sample application that can be used to test the basic functionality of
-viewer Shows the trusted certificate viewer. This allows a user to list, examine,
remove or export trusted certificates. Note that this only reflects the cer-
tificates trusted by javaws and not any other certificates or programs.
In the default mode, the following run-options can be used:
Directory where the cache and certificates to be used are stored.
-arg arg Adds an application argument before launching.
Adds an applet parameter before launching.
Sets a system property before launching.
Update check if seconds since last checked.
-license Display the GPL license and exit.
-verbose Enable verbose output. Very useful in debugging.
-nosecurity Disables the secure runtime environment.
-noupdate Disables checking for updates.
-headless Disables download window, other UIs.
-strict Enables strict checking of JNLP file format. Any deviations from the JNLP DTD
will cause javaws to abort.
Sets the umask for files created by an application.
-Xnofork Do not create another JVM, even if the JNLP file asks for running in a sepa-
rate JVM. This is useful for debugging.
This passes along java-option to the java binary that is running javaws. For
example, to make javaws run with a max heap size of 80m, use -J-Xmx80m.
-help Print a help message and exit.
~/.icedtea/deployment.properties specifies the settings used by javaws
There arent any known bugs. If you come across one, please file it at
Please run javaws in verbose mode and include that output along with the jnlp file when
filing out the bug report.
Originally written by Jon. A. Maxwell.
Currently maintained by the IcedTea contributors.
9 Sep 2010 javaws(1)
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