Karakun Support Forums

We are happy to announce the release of OpenWebStart v1.6.0

Please see https://github.com/karakun/OpenWebStart ... tag/v1.6.0

- OpenWebStart Team at Karakun

OWS 3.0.0-alpha2 is not complete. Features like Sandbox are missing. It does have an improved classloader. We gave it up for lack of resources. After all this is an opensource project and we have limited budgets.

You can just take OWS-3.0.0-alpha2 and test the log4j issue. Let me know if it works out of the box.

We tried new class loader in OWS-3.0.0-alpha2 but it is not complete yet, it is missing the sandbox and some other features.

Do you want to apply the fix of https://github.com/AdoptOpenJDK/IcedTea-Web/pull/856 to OWS? I checked that there is similar code in ITW-2.0.0-alphaX which is used by OWS.. > problem I mentioned in the log4j thread Will it be possible for you to make a small example that reproduces the log4j issue? ...

May I ask what change did you make? Would you like to provide a PR so that the change can be shared with the community?

yes. that is what I said, i4J still believes it is an old version.

Installer is not open source. It is built using Install4J. You may replace the jar in current install dir. OWS will work except that the Installer Update feature may still think it is an old version.

As stated above, I could not reproduce the problem. Can you please provide a sample app that reproduces the problem?
Thanks

Since we cannot reproduce this issue, we will need to go deeper into this and try your app with the specified jar files. Request you to buy paid support so that we can allocate dedicated resources to look into this issue.

You have tried increasing download threads. Beyond this it is hard to say how OWS is performing in on in your environment. We need to do detailed profiling to observe the performance. Request you to buy paid support so that we can allocate dedicated resources to investigate this issue.

It is strange when you say it works sometime and sometime there is a NoClassDefFoundError. Can you please try running it like the following: C:\Users\zapf_da\.cache\icedtea-web\jvm-cache\oracle_1.8.0_171\bin\java.exe -classpath C:\Users\zapf_da\.cache\icedtea-web\cache\0\2\afisnavigator-7.0.0-SNAPSH...

I compared the logs of non-working and working instances. The only difference I see is that the order in which jars are downloaded is different. May be this leads to different class loading in case there are duplicate classes. I presume that all jars specified in the jnlp are also in the class path ...

Hi

The jnlp file need not be different. OWS supports the same JSR 56 standard.

Can you please send us the log files (see https://openwebstart.com/docs/OWSGuide.html#_logging)?

Adding the properties did not bring any change . So now is your application starting with all the specified jvm-args? It is also important to note again that sometimes it works. Could it be that there is n old and new version of the class in different jars and that it is dependent on the order in w...

Hi Not sure why this started all of a sudden last Thursday. Do you mean to say that it was working till last Wednesday and on Thursday all of a sudden all 30 users started getting this error? As I understand All users have their own machine with OWS installed on it? Is it the case that for all the u...

Thanks for the logs. But you did not enable Logging of Jnlp file. However, from the stage 2 log I can see some issues: At line 65 and line 91 : Ignoring java-vm-args due to illegal Property -Dlog4j.configDebug=true OWS is ignoring all the java-vm-args specified in the jnlp because it does not recogn...

I cannot really say why the download is slow. Are the logs you have sent by mail for the same application which you feel is slow while downloading? The logs indicate that there are 274 jar files. From the stage-2 logs I can see that jar processing starts at 6:19:50.498 (line119) and jars are found i...

OWS uses different code from Oracle JWS hence will behave differently.

We have tried to improve download and it happens in parallel. deployment.cache.parallelDownloadCount will increase the number of download threads. Default is 6. Do you see the download dialog with progress bar for each jar?

Hi, Which version of OWS are you using? Which version of Java is being used to run the Jnlp app? Can you please send us the log files? You can enable logging : https://openwebstart.com/docs/OWSGuide.html#_logging . Also switch on log content of Jnlp file. In the stack trace there are several missing...

If you cannot sign with non-MD5 certificate and you do not want to touch JVM security then the only option is to run this particular jnlp app with OWS such that OWS ignores certificate issues. This can be done by specifying the deployment property deployment.security.itw.ignorecertissues =true and r...