UnsatisfiedLinkError GetIfEntry2 on winxp

[jimbostimilon]

I know Winxp is obsolete but...

I'm seeing this error on Winxp 32bit when calling SystemInfo in OSHI 3.2 and 3.3, but I don't see the error in 3.1.1 and below. Maybe related to #243: Make Windows network statistics 64-bit ?

I'm using JNA 4.2.2

Exception in thread "pool-9-thread-1" java.lang.UnsatisfiedLinkError: Error looking up function 'GetIfEntry2': The specified procedure could not be found.

at com.sun.jna.Function.<init>(Function.java:212)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:541)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:518)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:504)
at com.sun.jna.Library$Handler.invoke(Library.java:220)
at com.sun.proxy.$Proxy7.GetIfEntry2(Unknown Source)
at oshi.hardware.platform.windows.WindowsNetworks.updateNetworkStats(WindowsNetworks.java:51)
at oshi.hardware.NetworkIF.updateNetworkStats(NetworkIF.java:274)
at oshi.hardware.common.AbstractNetworks.getNetworks(AbstractNetworks.java:57)
at oshi.hardware.platform.windows.WindowsHardwareAbstractionLayer.getNetworkIFs(WindowsHardwareAbstractionLayer.java:97)
at oshi.json.hardware.impl.HardwareAbstractionLayerImpl.getNetworkIFs(HardwareAbstractionLayerImpl.java:133)
at oshi.json.hardware.impl.HardwareAbstractionLayerImpl.toJSON(HardwareAbstractionLayerImpl.java:213)
at oshi.json.SystemInfo.toJSON(SystemInfo.java:111)

[dbwiddis]

The GetIfEntry2 function requires Vista or later. And you're correct, the change in #243 is the 'culprit'.

It's probably easy to put in a Windows version check to use the 32-bit statistics on pre-Vista.

[jimbostimilon]

I did see another UnsatisfiedLinkError with Winxp-32 as well, but haven't traced it back to a particular version yet. I just disabled uptime since I don't need it.

Exception in thread "pool-9-thread-1" java.lang.UnsatisfiedLinkError: Error looking up function 'GetTickCount64': The specified procedure could not be found.

at com.sun.jna.Function.<init>(Function.java:212)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:541)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:518)
at com.sun.jna.NativeLibrary.getFunction(NativeLibrary.java:504)
at com.sun.jna.Library$Handler.invoke(Library.java:220)
at com.sun.proxy.$Proxy1.GetTickCount64(Unknown Source)
at oshi.hardware.platform.windows.WindowsCentralProcessor.getSystemUptime(WindowsCentralProcessor.java:221)
at oshi.json.hardware.impl.CentralProcessorImpl.getSystemUptime(CentralProcessorImpl.java:246)
at oshi.json.hardware.impl.CentralProcessorImpl.toJSON(CentralProcessorImpl.java:351)
at oshi.json.hardware.impl.HardwareAbstractionLayerImpl.toJSON(HardwareAbstractionLayerImpl.java:191)
at oshi.json.SystemInfo.toJSON(SystemInfo.java:111)
at oshi.json.json.AbstractOshiJsonObject.toJSON(AbstractOshiJsonObject.java:70)

[dbwiddis]

Thanks! This stack trace is enough to go on.

[dbwiddis]

Snapshot is updated with fixes in #316. Can you test it out and see if it solves both problems above?

[jimbostimilon]

Looks good to me. Thanks for the quick fix!