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Questions tagged [openwebstart]

OpenWebStart is a tool that support the execution of JNLP based Java Application. Since Oracle removed Java Web Start from the Oracle JDK OpenWebStart can be used as the open source successor of Java Web Start for Java 8 and 11.

OpenWebStart is a tool that support the execution of JNLP based Java Application. Since Oracle removed Java Web Start from the Oracle JDK OpenWebStart can be used as the open source successor of Java Web Start for Java 8 and 11. OpenWebStart is based on IcedTeaWeb that was developed by Red Hat and is now part of the AdoptOpenJDK.

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How to make sure that single instance of Java Web Start application is running on client's machine?

I am trying to execute .jnlp file on client machine using java web start as well as open web start. How to make sure that only single instance of jnlp application or java web start application is running on client's machine? I found that need to use…
sachin
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The Jnlp application is not fully signed

After running the jnlp file, I get the following error: Error text: net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize application. The application has not been initialized, for more information execute javaws…
LuckyPants
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How to use Openjfx in a webstart application using OpenWebStart

We are migrating a Java 1.8 JavaFX/Webstart application to Java 11 using Openjfx (https://openjfx.io) and OpenWebStart (https://openwebstart.com). We successfully migrate and run the app to JavaFx-14 (OpenJfx). To run it at the IDE now it is…
Chocksmith
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OpenWebStart + IcedTea-Web: j2se element

With OpenWebStart (Java SE 11), what URL should we use in the j2se element? This link seems to be dead. The "autodl" in the path seems to indicate that there should be some kind…
Puce
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Unable to open my jnlp file on open web start using JVM 1.17 but I am able to open same with JVM 1.8

While I am trying to open my jnlp file using on open web start using JVM 1.17, I am getting the following errors but it is opening fine with JVM 1.8. net.sourceforge.jnlp.LaunchException: Fatal: Launch Error: Could not launch JNLP file. The…
Noob Coder
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JNLP file blocked by security manager stating the error -> java.security.AccessControlException: access denied

I am trying to run my jnlp file which is basically getting my jenkins agent online after i reboot my pc , previously with java web start recently with OpenWebStart i am getting this issue every time when i launch jnlp file after 02 - 03 seconds it…
Bilawal
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net.adoptopenjdk.icedteaweb.shaded.mozilla.javascript.EcmaError: ReferenceError: "java" is not defined. (internal#105)

When trying to invoke a JNLP application with Open Web start , I get this stack trace of errors. net.adoptopenjdk.icedteaweb.shaded.mozilla.javascript.EcmaError: ReferenceError: "java" is not defined. (internal#105) at…
user2358826
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OpenWebStart + IcedTea-Web: JNLP DOCTYPE or XSD

What is the current JNLP specification (version) for OpenWebStart (Java SE 11)? There is an inofficial JNLP version list here, but only up to Java SE 8. Should still the DTD from Oracle/ Sun be used?
Puce
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OWS + Jdk17 - Denying permission (java.policy issue?)

We're using Open Web Start with java 17 (OWS 1.8 with Java Ecplipse Adoptium 17.0.7). We get a lot of 'Denying permission:' Messages. Example : Denying permission: ("java.net.SocketPermission" "192.168.0.244" "resolve") Denying permission:…
oslodev
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Running JMeter as a "pure" web application

Is it possible to run JMeter as a "pure" web application? I am trying to convert the jmeter desktop application to webapp using java web start. I signed all the jars in jmeter. Everything is in the root of the web application. When I click on the…
Maroš Malý
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Java webstart application security issue with OpenWebStart and log4j2

I'm migrating some auto-signed WebStart (WS) applications from Oracle's Java 8 to OpenJDK11+OpenWebStart. However I'm getting strange java.io.FilePermission errors after the migration (in other words, when launching the application's JNLP with…
moser
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Open Web Start - java.sql.date ClassNotFound when lauching the client

We are currently migrating from Java 8 to Java 17 + open web start. We are facing an issue we are not able to solve after quite a lot of research : We get a ClassNotFound error on java.sql.Date when launching the client. The package is present in…
oslodev
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OpenWebStart Application Login with Kerberos - Checksum failed

I try to run OpenWebStart application which displays Login-Dialog und does Login on Kerberos. I get "Checksum failed" Exception (see below). I'm running KDC in VM (Centos7) and in Kerberos Log I see that TGT was successfuly…
dkalna
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OpenWebStart + IcedTea-Web: JavaScript launch button

With OpenWebStart (Java SE 11), what JavaScript script should we use to create the launch button? With Java SE 8 I used: [...]