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https://issues.apache.org/jira/browse/NETBEANS-3810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17116635#comment-17116635
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Neil C Smith commented on NETBEANS-3810:
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The issue with the (appearance of) an infinite loop of dialogs should be fixed
from 12.0-beta5 - behaviour should be closer to 11.2 there. Not closing as
other issues in play here.
> Netbeans 11.3 does not report clearly certificate problems downloading javafx
> and nb-javac
> ------------------------------------------------------------------------------------------
>
> Key: NETBEANS-3810
> URL: https://issues.apache.org/jira/browse/NETBEANS-3810
> Project: NetBeans
> Issue Type: Bug
> Components: platform - Autoupdate
> Affects Versions: 11.3
> Environment: Windows 2016 server, Intel Xeon, 48G RAM.
> Network includes a proxy server with deep packet inspection and certificate
> rewriting.
> Reporter: Michele Costabile
> Assignee: Michele Costabile
> Priority: Minor
> Labels: documentation, newbie
> Fix For: 11.3
>
> Attachments: Netbeans-11.3_bug.PNG, Netbeans-11.3_plugin-problem.PNG,
> Netbeans-11.3_plugin.PNG
>
>
> NetBeans cannot get past installation of JavaFX and nb-javac on my
> installation behind a company firewall. This problem was also in 11.2, but it
> did not stop the IDE from working. It just kept on quietly asking for
> nb-javac installation.
> 11.3, on the other hand does not seem to get past this problem. It keeps on
> asking for installation of javafx and nb-javac and "Loading projects" never
> comes to an end.
> I tested my proxy setting in options and I have a green light with system
> settings and also with manual settings.
> In any case I have never been able to install nb-javac and could not find
> instructions on how to install manually the plugin.
> Note that my proxy has deep packet inspection and can create problems with
> certificate verification on SSL.
>
> EDIT: the request for installation is not an infinite loop. It appears to be
> once for every open project. Hitting cancel more times, the progress bar in
> the status bar eventually gets to 100%, but all the projects are reported
> broken.
>
> EDIT: as you can see from the comments below, it was really a problem with
> certificates. When you are behind a proxy with deep inspection, certificates
> are manipulated in such a way that you have to trust your company root
> certificate to avoid failure in trust chains.
> This becomes a NetBeans installation problem because:
> * Differently from other IDEs, NetBeans delegates everything to JDK, so it
> requires that the trust problem is solved in the JDK, not in the IDE
> preferences. The user should be able to find instructionsto resolve the
> problem
> * In 11.2 the IDE did not enter a loop waiting for nb'javac installation to
> validate projects. It just gave up, causing less problems
> * "Test connection" in proxy settings did not report certificate problems. A
> full https connection should be tested
> * The dialog box of nb-javac installation does not report certificate
> problems, it rather dies without warning and the installation is stuck with a
> progress bar at 100% and no notification other than "cannot resolve external
> references ..." This hides the problem
>
>
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