type "jtermios.windows.WinAPI$ULONG_PTR" is not supported

When I call CommPortIdentifier.getPortIdentifier("COM2") I get an error that unsigned Long pointer is not supported. I know the device is connected on COM2 because I can access it in YAT.

I’ve imported the library using gradle compile group: 'com.github.purejavacomm', name: 'purejavacomm', version: '1.0.2.RELEASE'

Stack trace: java.lang.IllegalArgumentException: Invalid Structure field in class jtermios.windows.WinAPI$OVERLAPPED, field name 'Internal' (class jtermios.windows.WinAPI$ULONG_PTR): The type "jtermios.windows.WinAPI$ULONG_PTR" is not supported: Can't create an instance of class jtermios.windows.WinAPI$ULONG_PTR, requires a public no-arg constructor: java.lang.reflect.InvocationTargetException at com.sun.jna.Structure.validateField(Structure.java:1215) at com.sun.jna.Structure.validateFields(Structure.java:1224) at com.sun.jna.Structure.<init>(Structure.java:200) at com.sun.jna.Structure.<init>(Structure.java:193) at com.sun.jna.Structure.<init>(Structure.java:180) at com.sun.jna.Structure.<init>(Structure.java:172) at jtermios.windows.WinAPI$OVERLAPPED.<init>(WinAPI.java:459) at jtermios.windows.JTermiosImpl$Port.<init>(JTermiosImpl.java:65) at jtermios.windows.JTermiosImpl$Port.<init>(JTermiosImpl.java:53) at jtermios.windows.JTermiosImpl.open(JTermiosImpl.java:348) at jtermios.JTermios.open(JTermios.java:422) at purejavacomm.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.java:101) at com.<redacted>.network.SerialClient.SerialClient.connect(SerialClient.java:47) at com.<redacted>.network.NMEAConnection.NMEAConnection.connect(NMEAConnection.java:148) at com.<redacted>.nmea_device.Application.run(Application.java:93) at com.<redacted>.nmea_device.Application.main(Application.java:132) Caused by: java.lang.IllegalArgumentException: The type "jtermios.windows.WinAPI$ULONG_PTR" is not supported: Can't create an instance of class jtermios.windows.WinAPI$ULONG_PTR, requires a public no-arg constructor: java.lang.reflect.InvocationTargetException at com.sun.jna.Native.getNativeSize(Native.java:1362) at com.sun.jna.Structure.getNativeSize(Structure.java:2174) at com.sun.jna.Structure.getNativeSize(Structure.java:2164) at com.sun.jna.Structure.validateField(Structure.java:1211) ... 15 more

Any help is appreciated.

[yijunwu]

This sounds like a non compatible version of JNA.

I encountered the same problem(java.lang.IllegalArgumentException: The type “jtermios.windows.WinAPI$ULONG_PTR” is not supported) and found it is indeed a JNA version compatibility problem. After downgrading to JNA 4.2.2(previously 5.10.0), the problem is solved. Just FYI.

[nyholku]

On 25. Jan 2022, at 11.27, Jacob Wu @.***> wrote:

On 19 Sep 2019, at 6.43, Tom M @.***> wrote: When I call CommPortIdentifier.getPortIdentifier(“COM2”) I get an error that unsigned Long pointer is not supported. I know the device is connected on COM2 because I can access it in YAT. I’ve imported the library using gradle compile group: ‘com.github.purejavacomm’, name: ‘purejavacomm’, version: ‘1.0.2.RELEASE’ Stack trace: java.lang.IllegalArgumentException: Invalid Structure field in class jtermios.windows.WinAPI$OVERLAPPED, field name ‘Internal’ (class jtermios.windows.WinAPI$ULONG_PTR): The type “jtermios.windows.WinAPI$ULONG_PTR” is not supported: Can’t create an instance of class jtermios.windows.WinAPI$ULONG_PTR, requires a public no-arg constructor: java.lang.reflect.InvocationTargetException at com.sun.jna.Structure.validateField(Structure.java:1215) at com.sun.jna.Structure.validateFields(Structure.java:1224) at com.sun.jna.Structure.(Structure.java:200) at com.sun.jna.Structure.(Structure.java:193) at com.sun.jna.Structure.(Structure.java:180) at com.sun.jna.Structure.(Structure.java:172) at jtermios.windows.WinAPI$OVERLAPPED.(WinAPI.java:459) at jtermios.windows.JTermiosImpl$Port.(JTermiosImpl.java:65) at jtermios.windows.JTermiosImpl$Port.(JTermiosImpl.java:53) at jtermios.windows.JTermiosImpl.open(JTermiosImpl.java:348) at jtermios.JTermios.open(JTermios.java:422) at purejavacomm.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.java:101) at com…network.SerialClient.SerialClient.connect(SerialClient.java:47) at com…network.NMEAConnection.NMEAConnection.connect(NMEAConnection.java:148) at com…nmea_device.Application.run(Application.java:93) at com…nmea_device.Application.main(Application.java:132) Caused by: java.lang.IllegalArgumentException: The type “jtermios.windows.WinAPI$ULONG_PTR” is not supported: Can’t create an instance of class jtermios.windows.WinAPI$ULONG_PTR, requires a public no-arg constructor: java.lang.reflect.InvocationTargetException at com.sun.jna.Native.getNativeSize(Native.java:1362) at com.sun.jna.Structure.getNativeSize(Structure.java:2174) at com.sun.jna.Structure.getNativeSize(Structure.java:2164) at com.sun.jna.Structure.validateField(Structure.java:1211) … 15 more Any help is appreciated. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread. This sounds like a non compatible version of JNA.

I encountered the same problem(java.lang.IllegalArgumentException: The type “jtermios.windows.WinAPI$ULONG_PTR” is not supported) and found it is indeed a JNA version compatibility problem. After downgrading to JNA 4.2.2(previously 5.10.0), the problem is solved. Just FYI.

— Reply to this email directly, view it on GitHub https://github.com/nyholku/purejavacomm/issues/128#issuecomment-1020979559, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAFP7LM6Y2B2FSUVMYETM5TUXZUHBANCNFSM4IYGARHA. Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub. You are receiving this because you commented.

Thansk for the heads up!