Peter Nabbefeld created NETBEANS-1620:
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Summary: Reloading a module in Development IDE unloads
compatibilty layers
Key: NETBEANS-1620
URL: https://issues.apache.org/jira/browse/NETBEANS-1620
Project: NetBeans
Issue Type: Bug
Affects Versions: 10.0
Environment: Arch Linux
JDK 11
NetBeans 10.0vc3
Reporter: Peter Nabbefeld
Unloading of the compatibilty layers results in the IDE partially hanging.
>From IDE.log (logged while reloading module):
INFO [org.netbeans.core.startup.NbEvents]: Turning on modules:
org.netbeans.modules.pm.DocsTree [1.0 1.0-20181107 201811070731]
WARNING [org.openide.filesystems.Ordering]: Not all children in Menu/Window/
marked with the position attribute:
[org-netbeans-modules-pm-docstree-PMTopComponent.shadow], but some are:
[org-netbeans-modules-project-ui-logical-tab-action.shadow,
org-netbeans-modules-project-ui-physical-tab-action.shadow,
org-netbeans-modules-favorites-View.shadow,
org-netbeans-core-ide-ServicesTabAction.shadow,
org-netbeans-modules-navigator-ShowNavigatorAction.shadow,
org-netbeans-modules-tasklist-ui-TaskListAction.shadow,
org-netbeans-modules-tasks-ui-DashboardTopComponent.shadow,
org-netbeans-core-io-ui-IOWindowAction.shadow,
SwitchToRecentDocumentAction.shadow, Debug, Profile, Web, Tools,
Separator3.instance, ConfigureWindow,
org-netbeans-core-windows-actions-ResetWindowsAction.shadow,
Separator4.instance, CloseWindowAction.shadow, CloseAllDocumentsAction.shadow,
CloseAllButThisAction.shadow, GroupsMenuAction.shadow, DocumentsAction.shadow]
INFO [org.netbeans.core.startup.NbEvents]: Turning off modules:
org.netbeans.api.progress.compat8 [1.50.1
incubator-netbeans-release-365-on-20181105]
org.netbeans.modules.java.source.compat8 [9.6.1
incubator-netbeans-release-365-on-20181105]
org.netbeans.modules.pm.DocsTree [1.0 1.0-20181107 201811070731]
org.netbeans.modules.project.ant.compat8/1 [1.70.1
incubator-netbeans-release-365-on-20181105]
org.openide.execution.compat8 [9.5.1
incubator-netbeans-release-365-on-20181105]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$TreeLoaderRegistry could
not be found in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$ContextEnhancer could not
be found in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.tasklist.CompilerSettings could not be found
in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$DuplicateClassRegistry
could not be found in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$TreeLoaderRegistry could
not be found in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$ContextEnhancer could not
be found in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.tasklist.CompilerSettings could not be found
in SystemClassLoader[671 modules]
WARNING [org.openide.util.lookup.MetaInfServicesLookup]:
org.netbeans.modules.java.source.parsing.JavacParser$DuplicateClassRegistry
could not be found in SystemClassLoader[671 modules]
INFO [org.netbeans.core.startup.NbEvents]: Turning on modules:
org.netbeans.modules.pm.DocsTree [1.0 1.0-20181107 201811070731]
As You can see, compatibility modules are unloaded but not reloaded (IMO, they
shouldn't even get unloaded).
Since this, IDE doesn't provide Java functionality any more, CNFEs are
displayed, and I cannot even close NetBeans.
The source code of my modules can be found at
[https://github.com/pnabbefeld/NbProjectManagement]
For installation of the module, You'll need to remove the JAXB dependencies
(but, please, don't remove the antlr build step and its dependency, otherwise
the module won't compile).
However, this bug should occur with any external module.
So, to reproduce this bug, try the following:
# Create/Load a NetBeans module (I'm using source/target 1.8, because AFAIK
it's not possible to use newer Java platforms for module development).
# Build it, install it into NetBeans ("Install/reload in Development IDE").
First time this will work, as no unloading is done.
# Reload it. Now, the compatibility layers are unloaded, the above described
behavior can be seen.
If You're running the module, everything will be okay, because the "slave" IDE
already starts with the updated version of the module.
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