Re: [platform-dev] Adding new version of JNA library in orbit

[Muhammad Umair Sair <umair_sair@xxxxxxxxxxx>]

Thanks for providing the feedback. I investigated further and the problem turned out to be different and can happen with updated jna as well. Opened following PRs.

https://github.com/eclipse-equinox/equinox/pull/110

https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/pull/533

- Umair

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From: platform-dev <platform-dev-bounces@xxxxxxxxxxx> on behalf of Aleksandar Kurtakov <akurtako@xxxxxxxxxx>
Sent: Wednesday, August 31, 2022 11:24 AM
To: Eclipse platform general developers list. <platform-dev@xxxxxxxxxxx>
Subject: Re: [platform-dev] Adding new version of JNA library in orbit

 

On Wed, Aug 31, 2022 at 9:11 AM Ed Merks <ed.merks@xxxxxxxxx> wrote:

The platform is  pulling that directly from Maven:

The generate maven dependency resolves to a much newer version:

The versions are available here( with 5.21.1 being the latest):

  https://repo1.maven.org/maven2/net/java/dev/jna/jna/

The version would need to be changed here:

https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/blob/67bf36e6dcd414163905a05e72c30c66a5b5b164/eclipse.platform.releng.prereqs.sdk/eclipse-sdk-prereqs.target#L178-L189

So it's best to open an issue in that repository

https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/issues

Submitting PR would be even better. I'm afraid that it's too late for 2022-09 release as the final build is supposed to literally happen today and bumping JNA now will give zero time for other projects to adjust nor any time for bugfixes. If there is PR submitted now we can do the license check/approval and etc. and have the change in I-build (for 2022-12) hopefully next week.

 

On 31.08.2022 01:29, Muhammad Umair Sair wrote:

Hi,

I am facing issue on Linux with NativeLibrary. When HTTPS proxy is set, I am getting errors on terminal error stream with consistency from org.eclipse.equinox.internal.security.linux.unlockSecretService(..) and following call in this method gets stuck forever.

            Pointer secretService = fLibSecret.secret_service_get_sync(SecretServiceFlags.SECRET_SERVICE_LOAD_COLLECTIONS,
                        Pointer.NULL, gerror);

On investigation, I found that its a race condition between finalizer and NativeLibrary.getInstance(..). On second time call to get secret-1 library, the object from weak reference is gone/GCed in NativeLibrary.libraries but the NativeLibrary object itself is not finalized/GCed yet, so it gets ref.get()==null and goes for reloading the library which causes following errors in console. The reason is that the older library was not unloaded yet and we loaded it again.

~~~~~~~~~~~~~~~~~~~~~~~~~

(java:3835014): GLib-GObject-WARNING **: 02:47:42.753: cannot register existing type 'SecretService'

(java:3835014): GLib-GObject-WARNING **: 02:47:42.753: cannot add private field to invalid (non-instantiatable) type '<invalid>'

(java:3835014): GLib-GObject-CRITICAL **: 02:47:42.753: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(java:3835014): GLib-GObject-CRITICAL **: 02:47:42.753: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(java:3835014): GLib-GObject-WARNING **: 02:47:42.753: cannot register existing type 'SecretBackend'

(java:3835014): GLib-GObject-CRITICAL **: 02:47:42.753: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed

(java:3835014): GLib-GObject-CRITICAL **: 02:47:42.753: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed

(java:3835014): GLib-CRITICAL **: 02:47:42.753: g_once_init_leave: assertion 'result != 0' failed

(java:3835014): GLib-GObject-CRITICAL **: 02:47:42.753: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

~~~~~~~~~~~~~~~~~~~~~~

I was looking at jna project and they have moved away from using finalizers [1] and it is available is version 5.12.

Can we add latest jna version in orbit for 2022-09?

[1] https://github.com/java-native-access/jna/pull/1402

Thanks,

Umair Sair

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--

Aleksandar Kurtakov

Red Hat Eclipse Team