Search found 346 matches

by Janak Mulani
16 Apr 2024, 12:30
Forum: Public Forums
Topic: Openwebstart 1.9.1 ignores configured JDK
Replies: 2
Views: 10

Re: Openwebstart 1.9.1 ignores configured JDK

Can you please attach the OWS log files?
by Janak Mulani
12 Apr 2024, 10:18
Forum: Public Forums
Topic: Fatal Read Error: Could not read or parse the JNLP file at
Replies: 2
Views: 27

Re: Fatal Read Error: Could not read or parse the JNLP file at

Request please do not copy logs from the console, instead send log files. See OWS Guide for logging.

Also request you to buy support for guaranteed response to your posts on the forum and to enable us to maintain OWS opensource project.
by Janak Mulani
12 Apr 2024, 10:15
Forum: Public Forums
Topic: Fatal Read Error: Could not read or parse the JNLP file at
Replies: 2
Views: 27

Re: Fatal Read Error: Could not read or parse the JNLP file at

Your jnlp file has: <jnlp spec="1.0+" codebase="http://apptest:8080/Umwelt11/" href="umwelt11.jnlpx"> OWS is not able to download the jnlp file from the server: downloadFrom exception: Server returned HTTP response code: 403 for URL: http://apptest:8080/Umwelt11/umwelt1...
by Janak Mulani
08 Apr 2024, 20:38
Forum: Public Forums
Topic: macOS file path to the response.varfile
Replies: 1
Views: 42

Re: macOS file path to the response.varfile

In the OWS install dir "Command+Shift+." will show hidden directory ".install4j". You will find "response.varfile" there.
by Janak Mulani
04 Apr 2024, 14:49
Forum: Public Forums
Topic: Unknown Main-Class error
Replies: 1
Views: 32

Re: Unknown Main-Class error

Code: Select all

<application-desc main-class="dcsWebStart.RunWebStartScreen.class">
should be

<application-desc main-class="dcsWebStart.RunWebStartScreen">
by Janak Mulani
19 Mar 2024, 12:01
Forum: Public Forums
Topic: JAX-WS and openJDK 11
Replies: 1
Views: 70

Re: JAX-WS and openJDK 11

with which version of JRE are you trying to run your Jnlp application? I have no experience or running JAX-WS app with OWS. However, if the specified jre version > 1.8 you might have to add some module vm args.
by Janak Mulani
19 Mar 2024, 11:56
Forum: Public Forums
Topic: everything working even with expired code signing cert
Replies: 2
Views: 122

Re: everything working even with expired code signing cert

OWS is not responsible for the build and jar signing. OWS checks the jar signing only after downloading the jar. If a jar has problematic certificate such as expired/expiring/invalid certificate you will see a log entry:" Jar found at <path to jar in the cache> has been verified as SIGNED_NOT_O...
by Janak Mulani
14 Mar 2024, 14:24
Forum: Installation & Configuration
Topic: Initialization Error: Could not initialize application.
Replies: 4
Views: 301

Re: Initialization Error: Could not initialize application.

I cannot say why OWS does not work without knowing about your environment.

For guaranteed response I would request you to buy support https://openwebstart.com/#supportoptions
by Janak Mulani
11 Mar 2024, 13:48
Forum: Public Forums
Topic: deployment.jvm.arguments.whitelist
Replies: 1
Views: 94

Re: deployment.jvm.arguments.whitelist

In the jnlp file you should specify:

Code: Select all

<java version="17"	java-vm-args="   --add-exports=java.desktop/com.sun.java.swing.plaf.motif=ALL-UNNAMED .. "
There should be '=' after --add-exports. There is no need of a whitelist entry for this arg.
by Janak Mulani
27 Feb 2024, 11:26
Forum: Installation & Configuration
Topic: Initialization Error: Could not initialize application.
Replies: 4
Views: 301

Re: Initialization Error: Could not initialize application.

Hi Welcome, > I hope this email finds you well, may you kindly assist. Sinch System Configurator does not launch when we execute the Application. Sinch System Configurator uses Openwebstart and Java to launch the application. > OpenWebStart is used to run an application specified in Jnlp file with a...
by Janak Mulani
29 Jan 2024, 06:49
Forum: Public Forums
Topic: OWS + Jdk17 - Denying permission
Replies: 5
Views: 6970

Re: OWS + Jdk17 - Denying permission

> why this has changed between java-11 & java-17 as I compared the security.policy files between the two of them and this difference does not occur > Can you please provide more details? Do you mean to say that the same Jnlp file was running fine with Java 11 and OWS and when you started running...
by Janak Mulani
23 Jan 2024, 08:02
Forum: Public Forums
Topic: Unable to run JNPL file after installation
Replies: 1
Views: 14616

Re: Unable to run JNPL file after installation

OpenWebStart Settings executable itw-settings is for configuring OpenWebStart. You should be running your jnlp file with the OpenWebStart executable javaws from the OWS installation directory
by Janak Mulani
21 Dec 2023, 14:52
Forum: Announcements
Topic: OpenWebStart v1.9.1 released
Replies: 0
Views: 14399

OpenWebStart v1.9.1 released

We are happy to announce the release of OpenWebStart v1.9.1

https://github.com/karakun/OpenWebStart/releases

- OpenWebStart Team at Karakun
by Janak Mulani
18 Dec 2023, 11:07
Forum: Public Forums
Topic: Unable to run JNLP file with OWS 1.9.0
Replies: 8
Views: 6242

Re: Unable to run JNLP file with OWS 1.9.0

We have not made the 1.9.1 release yet, will do it soon. If you send email to openwebstart@karakun.com I can provide a pre-release.to test.
by Janak Mulani
14 Dec 2023, 17:34
Forum: Public Forums
Topic: Unable to run JNLP file with OWS 1.9.0
Replies: 8
Views: 6242

Re: Unable to run JNLP file with OWS 1.9.0

You start with URL https://socpos.mpsv.cz/posvvaclient/iok ... vatel.jnlp. In your Jnlp file you have codebase and href. The codebase specifies default port for https 443 in the URL OWS had a bug. We have fixed and make a new release. Would you like to test the fix?
by Janak Mulani
13 Dec 2023, 08:28
Forum: Public Forums
Topic: Unable to run JNLP file with OWS 1.9.0
Replies: 8
Views: 6242

Re: Unable to run JNLP file with OWS 1.9.0

did you using\\ 32 bit OWS on your machine In 1.8.0 log 31_15.37there is an exception: net.sourceforge.jnlp.LaunchException: No local file 'C:\Windows\-userConfig' found and failed to create an URL from -userConfig In 1.9.0 log 34_16.703 there is an exception: net.sourceforge.jnlp.LaunchException: N...
by Janak Mulani
13 Dec 2023, 05:52
Forum: Public Forums
Topic: JNLP IBM IMM and Java 21
Replies: 1
Views: 3510

Re: JNLP IBM IMM and Java 21

Hi, Your application is started by OWS using Java 21. In stage2 log there is an exception while running your jnlp application: java.lang.IllegalAccessError: superclass access check failed: class com.avocent.app.c.a.a (in unnamed module @0x3a46bb1c) cannot access class com.apple.eawt.Application (in ...
by Janak Mulani
13 Dec 2023, 04:38
Forum: Public Forums
Topic: openwebstart not reading certificates from CAC reader
Replies: 3
Views: 4157

Re: openwebstart not reading certificates from CAC reader

> should automatically read from CAC reader like Oracle Java does without importing certificates. OWS does not support this at present and there is no plan to implement this unless someone is sponsoring this feature. Either you may considering sponsoring or you may contribute to code by creating a P...