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Posted to dev@netbeans.apache.org by Marco Peters <ma...@brockmann-consult.de> on 2023/05/05 13:51:00 UTC
Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Hello,
Yes, I know the versions are quite old. It's a little embarrassing. Unfortunately, we didn't have the chance to update earlier in our ESA SNAP project. We were still using Java 1.8 too.
So, we now want to update step by step and not with one giant leap to the latest versions.
We try to get run 11.3 of NetBeans Platform with JDK11.
Now my problem.
After updating the Java help is not working anymore. The default menu entry Help/Help Contents is not added to the menu. And when invoking the help manually nothing happens.
Debugging revealed that in HelpCtx.display() the call to Lookup.getDefault().lookupAll(Displayer.class) to not return an implementation.
I've seen this issue [NETBEANS-462] Java Help class cannot be found - ASF JIRA (apache.org)<https://issues.apache.org/jira/browse/NETBEANS-462> and the last comment that dependencies to org-netbeans-modules-javahelp and javahelp are needed, which I have
<dependencies>
<dependency>
<groupId>org.netbeans.api</groupId>
<artifactId>org-netbeans-modules-javahelp</artifactId>
</dependency>
<dependency>
<groupId>javax.help</groupId>
<artifactId>javahelp</artifactId>
</dependency>
</dependencies>
Versions are defined in the parent pom.
Ther are multiple modules containing help. But even not all depend on those 2 modules at least the main help module should be shown and at least the Displayer implementation should be loaded, right?.
While building the application I don't see any warning regarding the help which might indicate a problem. And when starting the app, I see in the logs that the NB javahelp module is loaded.
When I try to instantiate the Displayer implementation JavaHelp directly I get a ClassNotFoundException. Which I do understand. The package is not exported. Does the HelpCtx, respectively the Lookup, have the same issue?
I have found no documentation about what needs to be done differently now.
I'm now a bit lost. Can someone give me a hint what I'm doing wrong.
Thank you.
Ciao
Marco
--
____________________________________________________________
Marco Peters
Brockmann Consult GmbH
Tel: +49 (0)40 696389 305
Email: marco.peters@brockmann-consult.de<ma...@brockmann-consult.de>
Skype: marco.peters.bc
Twitter: @MarPet_BC
____________________________________________________________
Brockmann Consult GmbH
Chrysanderstr. 1
D-21029 Hamburg, Germany
Amtsgericht Hamburg HRB 157689
Geschäftsführer Dr. Carsten Brockmann
http://www.brockmann-consult.de<http://www.brockmann-consult.de/>
Twitter: @BrockmannCon
____________________________________________________________
RE: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Marco Peters <ma...@brockmann-consult.de>.
Thanks for the update, Oliver.
Meanwhile we reached a point with NB11.3 where everything works as we need it. Unfortunately, the release date is getting closer, and we decided to update NB to the latest version in the next iteration.
Ciao
Marco
-----Original Message-----
From: Oliver Rettig <Ol...@orat.de>
Sent: Tuesday, May 16, 2023 8:30 AM
To: dev@netbeans.apache.org
Subject: Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Hi Marco,
I have upgraded my platform-apps always to the upcomming new netbeans versions without much problems. Most time I aloways need to find out which of the new netbeans modules which are automatically added to the platform app I do not need and have to be excluded. Sometimes there are dependencies which you have to figure out. My feeling is that it makes it not easier to migrate step by step (version). Do it in one step to the current version.
The java-help project of the student is not ready for production. I think the UI needs some more work. Maybe I can find some time to complete it or we work on it with a second student project starting in october.
best regards
Oliver
> at
> org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:316)
> at
> org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:252) at
> org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:298)
> at
> org.netbeans.core.startup.Main.getModuleSystem(Main.java:173) at
> org.netbeans.core.startup.Main.getModuleSystem(Main.java:142) at
> org.netbeans.core.startup.Main.start(Main.java:303)
> at
> org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:98)
> at
> java.base/java.lang.Thread.run(Thread.java:829)
> INFO [org.netbeans.core.netigso.Netigso]: Can't process
> C:\Users\Marco\Projects\IdeaProjects\senbox\snap-engine\ceres-core\tar
> get\c
> lasses java.io.FileNotFoundException:
> C:\Users\Marco\Projects\IdeaProjects\senbox\snap
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Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Oliver Rettig <Ol...@orat.de>.
Hi Marco,
I have upgraded my platform-apps always to the upcomming new netbeans versions
without much problems. Most time I aloways need to find out which of the new
netbeans modules which are automatically added to the platform app I do not
need and have to be excluded. Sometimes there are dependencies which you have
to figure out. My feeling is that it makes it not easier to migrate step by
step (version). Do it in one step to the current version.
The java-help project of the student is not ready for production. I think the
UI needs some more work. Maybe I can find some time to complete it or we work
on it with a second student project starting in october.
best regards
Oliver
> at
> org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:316) at
> org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:252) at
> org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:298) at
> org.netbeans.core.startup.Main.getModuleSystem(Main.java:173) at
> org.netbeans.core.startup.Main.getModuleSystem(Main.java:142) at
> org.netbeans.core.startup.Main.start(Main.java:303)
> at
> org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:98) at
> java.base/java.lang.Thread.run(Thread.java:829)
> INFO [org.netbeans.core.netigso.Netigso]: Can't process
> C:\Users\Marco\Projects\IdeaProjects\senbox\snap-engine\ceres-core\target\c
> lasses java.io.FileNotFoundException:
> C:\Users\Marco\Projects\IdeaProjects\senbox\snap
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RE: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Marco Peters <ma...@brockmann-consult.de>.
Thanks for all the responses. Let me answer first the questions:
Why 11.3 exactly? Personally, while I understand the desire to not make a giant leap, I think you're probably better jumping straight to NetBeans 17 with JDK 11 here.
Yes, full of enthusiasm I initially tried NB17. But got some error messages which made me step back in history. I tried 16, 12 and 12.6.
11.3 is the version which just worked, except the help.
In 17 I got, for example, this error. For which I couldn't find a solution:
java.lang.NullPointerException
at org.netbeans.core.netigso.Netigso.findRecursivePkgs(Netigso.java:784)
at org.netbeans.core.netigso.Netigso.substitutePkg(Netigso.java:741)
at org.netbeans.core.netigso.Netigso.fakeBundle(Netigso.java:611)
at org.netbeans.core.netigso.Netigso.fakeOneModule(Netigso.java:506)
at org.netbeans.core.netigso.Netigso.prepare(Netigso.java:155)
at org.netbeans.NetigsoHandle.turnOn(NetigsoHandle.java:115)
at org.netbeans.ModuleManager.doEnable(ModuleManager.java:1476)
at org.netbeans.ModuleManager.enable(ModuleManager.java:1331)
at org.netbeans.ModuleManager.enable(ModuleManager.java:1256)
at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:316)
at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:252)
at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:298)
at org.netbeans.core.startup.Main.getModuleSystem(Main.java:173)
at org.netbeans.core.startup.Main.getModuleSystem(Main.java:142)
at org.netbeans.core.startup.Main.start(Main.java:303)
at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:98)
at java.base/java.lang.Thread.run(Thread.java:829)
INFO [org.netbeans.core.netigso.Netigso]: Can't process C:\Users\Marco\Projects\IdeaProjects\senbox\snap-engine\ceres-core\target\classes
java.io.FileNotFoundException: C:\Users\Marco\Projects\IdeaProjects\senbox\snap-engine\ceres-core\target\classes (Access denied)
at java.base/java.io.RandomAccessFile.open0(Native Method)
at java.base/java.io.RandomAccessFile.open(RandomAccessFile.java:345)
… <more>
Thanks Oliver, for the JavaHelp link. We will have a look.
Ciao
Marco
-----Original Message-----
From: Neil C Smith <ne...@apache.org>
Sent: Friday, May 5, 2023 8:03 PM
To: dev <de...@netbeans.apache.org>
Subject: Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
On Fri, 5 May 2023, 18:38 Milan Horák, <ho...@thb.cz> wrote:
> Hi,
>
> my two cents:
>
> We have we have a whole ERP written in NetBeans 8 and absence of
> JavaHelp and absent Czech translation (solvable) is the only thing
> keeping us there. We don't insist on JavaHelp, but I couldn't find a
> way to replace JavaHelp with calls to online help context by pressing F1 key.
>
That's doable. And I'm sure we have people who'd be happy to help with any migration to the current platform!
https://netbeans.apache.org/help/commercial-support.html
Best wishes,
Neil
Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Neil C Smith <ne...@apache.org>.
On Fri, 5 May 2023, 18:38 Milan Horák, <ho...@thb.cz> wrote:
> Hi,
>
> my two cents:
>
> We have we have a whole ERP written in NetBeans 8 and absence of
> JavaHelp and absent Czech translation (solvable) is the only thing
> keeping us there. We don't insist on JavaHelp, but I couldn't find a way
> to replace JavaHelp with calls to online help context by pressing F1 key.
>
That's doable. And I'm sure we have people who'd be happy to help with any
migration to the current platform!
https://netbeans.apache.org/help/commercial-support.html
Best wishes,
Neil
Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Milan Horák <ho...@thb.cz>.
Hi,
my two cents:
We have we have a whole ERP written in NetBeans 8 and absence of
JavaHelp and absent Czech translation (solvable) is the only thing
keeping us there. We don't insist on JavaHelp, but I couldn't find a way
to replace JavaHelp with calls to online help context by pressing F1 key.
Milan
Dne 05. 05. 23 v 16:21 Neil C Smith napsal(a):
> On Fri, 5 May 2023 at 14:51, Marco Peters
> <ma...@brockmann-consult.de> wrote:
>> Yes, I know the versions are quite old. It's a little embarrassing. Unfortunately, we didn't have the chance to update earlier in our ESA SNAP project. We were still using Java 1.8 too.
>> So, we now want to update step by step and not with one giant leap to the latest versions.
>> We try to get run 11.3 of NetBeans Platform with JDK11.
> Why 11.3 exactly? Personally, while I understand the desire to not
> make a giant leap, I think you're probably better jumping straight to
> NetBeans 17 with JDK 11 here.
>
>> Now my problem.
>> After updating the Java help is not working anymore. The default menu entry Help/Help Contents is not added to the menu. And when invoking the help manually nothing happens.
>> Debugging revealed that in HelpCtx.display() the call to Lookup.getDefault().lookupAll(Displayer.class) to not return an implementation.
> Well, we haven't used JavaHelp in the IDE since moving to Apache
> (license issues) and I'm not sure how well tested adding JavaHelp to
> the platform is?! Certainly, some default help actions have changed
> in light of that.
>
> There's a curious question about whether we want to bring JavaHelp
> back? In theory, the license issue should now be resolvable.
>
> Best wishes,
>
> Neil
>
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> For additional commands, e-mail: dev-help@netbeans.apache.org
>
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> https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
>
>
>
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Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Oliver Rettig <Ol...@orat.de>.
Hi,
we have a student at the DHBW-Karlsruhe, working on a replacement of the
JavaHelp viewer.
https://github.com/MobMonRob/JavaHelpStudien
My main motivation to start this project are my own netbeans-platform
applications where we want to have offline-available help-pages which are
collected automatically from a big set of modules.
I think the module should also be able to be added to the netbeans IDE itself
to show the ide help pages.
What is the status of the ide help content? I think nobody has worked on
updating the IDE helps-sets?
Our student project will be finished end of month and in October we can start a
follow up project for completing missing parts and refinements.
So it is good to know, if there is interest in a modern replacement of java-
help (for the ide or netbeans platform based applications) or making re-
available the´ original implementation.
best regards
Oliver
> On Fri, 5 May 2023 at 14:51, Marco Peters
>
> <ma...@brockmann-consult.de> wrote:
> > Yes, I know the versions are quite old. It's a little embarrassing.
> > Unfortunately, we didn't have the chance to update earlier in our ESA
> > SNAP project. We were still using Java 1.8 too. So, we now want to update
> > step by step and not with one giant leap to the latest versions. We try
> > to get run 11.3 of NetBeans Platform with JDK11.
>
> Why 11.3 exactly? Personally, while I understand the desire to not
> make a giant leap, I think you're probably better jumping straight to
> NetBeans 17 with JDK 11 here.
>
> > Now my problem.
> > After updating the Java help is not working anymore. The default menu
> > entry Help/Help Contents is not added to the menu. And when invoking the
> > help manually nothing happens. Debugging revealed that in
> > HelpCtx.display() the call to
> > Lookup.getDefault().lookupAll(Displayer.class) to not return an
> > implementation.
> Well, we haven't used JavaHelp in the IDE since moving to Apache
> (license issues) and I'm not sure how well tested adding JavaHelp to
> the platform is?! Certainly, some default help actions have changed
> in light of that.
>
> There's a curious question about whether we want to bring JavaHelp
> back? In theory, the license issue should now be resolvable.
>
> Best wishes,
>
> Neil
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@netbeans.apache.org
> For additional commands, e-mail: dev-help@netbeans.apache.org
>
> For further information about the NetBeans mailing lists, visit:
> https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
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Re: Javahelp broken after update from NB platform 8.2 to 11.3 (Displayer not found by Lookup)
Posted by Neil C Smith <ne...@apache.org>.
On Fri, 5 May 2023 at 14:51, Marco Peters
<ma...@brockmann-consult.de> wrote:
> Yes, I know the versions are quite old. It's a little embarrassing. Unfortunately, we didn't have the chance to update earlier in our ESA SNAP project. We were still using Java 1.8 too.
> So, we now want to update step by step and not with one giant leap to the latest versions.
> We try to get run 11.3 of NetBeans Platform with JDK11.
Why 11.3 exactly? Personally, while I understand the desire to not
make a giant leap, I think you're probably better jumping straight to
NetBeans 17 with JDK 11 here.
> Now my problem.
> After updating the Java help is not working anymore. The default menu entry Help/Help Contents is not added to the menu. And when invoking the help manually nothing happens.
> Debugging revealed that in HelpCtx.display() the call to Lookup.getDefault().lookupAll(Displayer.class) to not return an implementation.
Well, we haven't used JavaHelp in the IDE since moving to Apache
(license issues) and I'm not sure how well tested adding JavaHelp to
the platform is?! Certainly, some default help actions have changed
in light of that.
There's a curious question about whether we want to bring JavaHelp
back? In theory, the license issue should now be resolvable.
Best wishes,
Neil
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