OpenJDK: need little help with ObjC

[Sergey Fedorov]

On Tue, Jul 16, 2024 at 6:19 PM Saagar Jha <saagar at saagarjha.com> wrote:

> I’m guessing that since the block runs elsewhere there isn’t an
> autoreleasepool for it anymore. You can probably fix this by wrapping the
> call to JavaMain in @autoreleasepool {}?
> Saagar Jha
>

This syntax is not supported by GCC, we need to use a standard ObjC somehow.


> On Jul 10, 2024, at 02:47, Riccardo Mottola via macports-dev <
> macports-dev at lists.macports.org> wrote:
>
> Hi,
>
> Sergio Had wrote:
>
> I have finally built the thing and it works, from looks of things, but I
> get a message on startup:
> 36-25%
> /opt/local/var/macports/build/_opt_PPCSnowLeopardPorts_java_openjdk8/openjdk8/work/jdk8u-jdk8u372-ga/build/openjdk8/images/j2sdk-image/bin/java
> -version
> 2024-07-09 18:34:10.587 java[13785:1903] *** __NSAutoreleaseNoPool():
> Object 0x5d12e50 of class NSCFDictionary autoreleased with no pool in place
> - just leaking
> 2024-07-09 18:34:10.590 java[13785:1903] *** __NSAutoreleaseNoPool():
> Object 0x5d13310 of class NSCFData autoreleased with no pool in place -
> just leaking
> openjdk version "1.8.0_372"
> OpenJDK Runtime Environment (build 1.8.0_372-root_2024_07_09_15_56-b00)
> OpenJDK Zero VM (build 25.372-b00, interpreted mode)
>
> This seems to be related to the code, which upstream has switched to block
> syntax (it does not build with GCC), so I had to use its earlier version.
> From commit message it seems upstream also had this startup issue:
>
> https://github.com/openjdk/jdk8u/commit/c29d997ca180ba5d812df7745c668cfc906be20b
>
>
> the message tells you that you are using NS* objects without an
> Autorelease Pool. It will cause issues, but "should work", so your app
> should run.
> I notice what they appear to be CoreFoundation bridge object. You should
> try to track where they come from, maybe put a breakpoint and stacktrace.
>
> The snipped seen in the commit looks trivial, no nsblocks needed and has
> an fresh ARP allocated, so I think the issue is elsewhere.
>
> Riccardo
>
>
>
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