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"The original downloaded java 8 jnlp file has href and <j2se version="1.8.0+ -" => This will mean OWS will choose a version > v1.8 i.e. v17 in your case. 1.8 would mean the version must be 1.8. 1.8* means anything at or higher than 1.8 but less than 9 (like 1.8.x). 1.8+ means anything...

Which JVMs are shown active in itw-settings > JVM Manager? Does it list JVM 8 and JVM 17? What is your itw-settings > JVM Manager > Update Strategy ? You are saying that even if you specify 1.8 or 1.8* it is still using Java 17. Where did you make this change, in the down loaded Jnlp or in the Jnlp ...

Can you please post the line from both Jnlp that specifies JRE to be used? For example: <java version="1.8+" java-vm-args=" -Xmx512m -Xms128m "/> The version number specified can either end with a number, and asterisk or a plus sign. 1.8 would mean the version must be 1.8. 1.8* m...

Which JRE is being used to run the jnlp application? OWS only launches the jnlp application with a JRE that matches the one specified in the jnlp file. Perhaps you need to give some permissions in the policy file of the JRE or you need to set some JVM args in the Jnlp to make your application work. ...

Hi Florian, Firstly you can post on the private forum for Dachser: https://board.karakun.com/viewforum.php?f=35 No one has reported a case like yours where the heap does not grow. Do you see this problem with your app when you start the app from command line using the command in your above post and ...

OWS translates initial-heap-size to -Xms and max-heap-size to -Xmx. OWS ignores all jvm args specified in the jnlp if anyone of them is not in the list of its secured jvm args or in the jvm args whitelist specified in the deployment.properties file. You can check the OWS stage1 log for a message ind...

> java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.Comparator java.util.TreeMap.comparator accessible: module java.base does not "opens java.util" to unnamed module @af975d7 > It seems that to work with Java 21 your application needs to add some m...

Once OWS does not control the behavior of an application in any way. OWS just launches a jnlp application with the JVM that best matches that specified in the Jnlp file. You say that with Java 21 the application is starting but after that you are not able to close the window of the application. Does...

Yes. Your question will require bit of trying out.

If you are from a company and are able to buy paid support it will help us maintain the OWS opensource project. Paid support comes with guaranteed response time.

>javaws <url of jnlp file>

You will have to specify java.locale.providers=COMPAT,CLDR in JVM arguments whitelist as described at https://openwebstart.com/docs/OWSGuide. ... _arguments.

Can you please tell me which company/organization do your belong to?

With itw-settings you can set JVM download options:

Yes <association> tag is not implemented although it is processed by the parser. But I wonder why the association is not created when I run the jnlp with Oracle JWS Java 8 u421? Did you set some property in the Java Control Panel:

I am using Windows 11. I ran the above .jnlpb file with Oracle JWS.: "Java Web Start 11.421.2.09 Using JRE version 1.8.0_421-b09 Java HotSpot(TM) 64-Bit Server VM" I do not see any thing related to "jnlpb" in the registry and in "Apps > Default apps > Choose defaults by file...

I ran a sample Jnlp with Oracle JWS and OWS javaws: <?xml version="1.0" encoding="utf-8"?> <jnlp spec="1.0+" codebase="http://localhost:8080/jnlp" href="webstart-monitor.jnlpb"> <information> <title>WebStart Monitor</title> <vendor>Karakun AG</vendor...

With OWS 1.11.0 installer [HKEY_CLASSES_ROOT\MIME\Database\Content Type\application/x-java-jnlp-file]
"Extension"=".jnlp" will be set when the installer is run in admin privilege ,i.e., installation is done for all users.

From the logs I see that:OWS settings is looking for the JVM at: About to look for local JVMs at the following location: C:\Program Files\OpenWebStart\Program FilesOpenWebStartjdk8u392-b08-jre You need to specify the path in response.varfile as: ows.jvm.manager.customSearchLocation=C\:\\Program File...

Hi, Do you mean to say that the Jnlp application that you start with OWS shows small fonts in that application's window? See https://stackoverflow.com/questions/15659044/how-to-set-the-dpi-of-java-swing-apps-on-windows-linux You will have to specify jvm args in the jnlp file for this: <java version=...

The OWS installer and the command used (like already mentioned) is "OpenWebStart_windows-x64_1_11_0.exe -q -varfile response.varfile". So, the 64-bit installer. Just to confirm: you are installing in "unattended mode". The machine is a 64 bit windows machine, right? When install...