Warnings when running with -Xcheck:jni
Kevin Rushforth
kevin.rushforth at oracle.com
Wed Sep 21 18:17:56 UTC 2016
We do care at least about the first one (pending exceptions), and we
should fix them. Can you file a bug?
As for the 'exceeds capacity' warning for JNI local refs we haven't in
general cared about these (I don't know of any VM for which this would
cause a problem), but we still might want to see if we can do something
to silence these warnings.
Thanks.
-- Kevin
Scott Palmer wrote:
> I noticed several warnings coming from javaFX when I ran my app with
> -X:check:jni
>
> Is that something worth filing an issue over,or is it basically a known
> thing and we don't particularly care?
>
> E.g.:
>
> WARNING in native method: JNI call made without checking exceptions when
> required to from CallStaticObjectMethodV
> at com.sun.glass.ui.win.WinDnDClipboard.push(Native Method)
> at
> com.sun.glass.ui.win.WinSystemClipboard.pushToSystem(WinSystemClipboard.java:234)
> at com.sun.glass.ui.SystemClipboard.flush(SystemClipboard.java:51)
> at
> com.sun.glass.ui.ClipboardAssistance.flush(ClipboardAssistance.java:59)
> at
> com.sun.javafx.tk.quantum.QuantumClipboard.flush(QuantumClipboard.java:274)
> at
> com.sun.javafx.tk.quantum.QuantumToolkit.startDrag(QuantumToolkit.java:1224)
> at
> javafx.scene.Scene$DnDGesture.dragDetectedProcessed(Scene.java:2953)
>
>
>
> WARNING: JNI local refs: zu, exceeds capacity: zu
> at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
> at
> com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
> at
> com.sun.glass.ui.win.WinApplication$$Lambda$57/665296081.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
> WARNING in native method: JNI call made without checking exceptions when
> required to from CallStaticObjectMethodV
> at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
> at
> com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
> at
> com.sun.glass.ui.win.WinApplication$$Lambda$57/665296081.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
>
> Regards,
>
> Scott
>
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