javaws(1)javaws(1)NAMEjavaws - a Java Web Start client
SYNOPSISjavaws [-run-options] jnlp-file
javaws [-control-option]
DESCRIPTIONjavaws is an implementation of a JNLP client. It uses a JNLP (Java
Network Launch Protocol) 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.
OPTIONS
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.
Control Options
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 about dialog.
-viewer Shows the trusted certificate viewer. This allows a user to
list, examine, remove or export trusted certificates. Note
that this only reflects the certificates trusted by javaws
and not any other certificates or programs.
Run Options
In the default mode, the following run-options can be used:
-version Prints out version and exit
-arg arg Adds an application argument before launching.
-param name=value
Adds an applet parameter before launching.
-property name=value
Sets a system property before launching.
-update seconds
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.
-xml The jnlp files will be checked more strictly for XML valid‐
ity
-allowredirect
Allow to follow 301, 302, 303, 307 and 308 redirections for
javaws applications
-Xnofork Do not create another JVM, even if the JNLP file asks for
running in a separate JVM. This is useful for debugging.
-Xclearcache
Clean the JNLP application cache.
-Xignoreheaders
Skip jar header verification.
-Jjava-option
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.
FILES
$XDG_CONFIG_DIR/icedtea-web/deployment.properties specifies the set‐
tings used by javaws
$XDG_CONFIG_DIR/icedtea-web/log (may be set to different location by
you) contains file log files (if enabled). itw-cplugin-date_time.log
for native part of plugin, itw-javantx-date_time.log for everything
else.
$XDG_CONFIG_DIR/icedtea-web/security/java.policy contains granted per‐
missions for selected unsigned apps
$XDG_CONFIG_DIR/icedtea-web/security/trusted.*certs contains various
stored certificates
$XDG_CACHE_DIR/icedtea-web/cache contains cached runtime entries (amy
be changed by you)
$XDG_CACHE_DIR/icedtea-web/pcache contains saved application data
$XDG_CACHE_DIR/icedtea-web/tmp contains temporary runtime files
$XDG_RUNTIME_DIR/icedteaplugin-user-*/ contains in and out pipe for
native<->java communication and (if enabled) debugging pipe
Where $XDG_CONFIG_DIR, $XDG_CACHE_DIR and $XDG_RUNTIME_DIR are set as
~/.config, ~/.cache and /tmp or /var/tmp if not set.
BUGS
There arent any known bugs. If you come across one, please file it at
http://icedtea.classpath.org/bugzilla/
Please run javaws in debug (-verbose switch or itw-settings setting or
ICEDTEAPLUGIN_DEBUG variable set to true) mode and include that output
(best is from java console) with URL to jnlp or html file (ot the
jnlp/html file or application itself) when filing out the bug report.
AUTHOR
Originally written by Jon. A. Maxwell.
Currently maintained by the IcedTea contributors. See javaws-about for
more info
SEE ALSOjava(1)
http://icedtea.classpath.org/wiki/IcedTea-Web
9 Sep 2010 javaws(1)