Java Web Start application runs under jre8u40 but not jre8u51

We have a Java web application that uses javaws. It runs very well under the update of Java 8 40, but under the update Java 8 51 jp2launcher.exe stops right, without launching the application.

  • I found the papers in C:\Users\me\AppData\LocalLow\Sun\Java\Deployment\log, but they are identical between j8u40 and j8u51 (except of course for the order of pots are loaded, the version of jre and the start time).
  • I connected the launch using Process Monitor for the two versions of jre. Under j8u51, jp2launcher.exe ends with just the result of 'SUCCESS' Comparing the two newspapers procmon, I can't choose anything unusual. They have both search in the directory C:\Users\me\AppData\LocalLow\Sun\Java\Deployment and their respective C:\Program Files\Java\jre1.8.0_XX\lib directories and others like, but then the j8u51 there is only.
  • The Windows event logs show any what that touch of Java.
  • I managed to run the jnlp whose value "JAVAWS_VM_ARGS = - Xcheck:jni - XX: - TraceClassLoadingPreorder - XX: + PrintCommandLineFlags-verbose: jni-verbose: class - verbose: gc - XX: + PrintGCDetails-Djava.util.logging.config.file=C:\misc\logging.properties" and connect the stdout/stderr. It looks like an end to newspapers javaws and jp2launcher for versions of the output, then both jre8u40 and jre8u51. Probably in the j8u40 version it launches another jp2launcher.exe to run the application.
    • Comparing newspapers two output gives nothing interesting. Classes are loaded in almost the same order, for the most part identical classes other than the few differences that are explained easily by just be more up-to-date used classes.
  • Finally, I was able to launch the application directly, using java.exe, by getting the customer their unpacking and installing the server files. The application itself works fine in jre8u51, so the problem is definitely javaws himself.

I find very little documentation on the inner workings of Java Web Start and no documentation at all on jp2launcher.exe. Can anyone suggest what could go wrong here, or other diagnostic measures I can take?

e: sorry for the strange user name. I tried to change it in my profile, but the forums don't seem to accept the change.

Hi people.

I managed to find the solution. There are several factors that interact and I think one of them is a bug in Java Web Start.

Please see full report at http://stackoverflow.com/questions/31556273/java-web-start-application-runs-under-jre8u40-but-not-jre8u51

Tags: Java

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