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gary-rowe / hid4java

A cross-platform Java Native Access (JNA) wrapper for the libusb/hidapi library. Works out of the box on Windows/Mac/Linux.
MIT License
229 stars 71 forks source link

org.hid4java.HidDevice.read(HidDevice.java:402) java.lang.NegativeArraySizeException: -1 on read failure #156

Open fricpa opened 1 month ago

fricpa commented 1 month ago

it's a bit confusing/discouraging that an error in the implementation leaks when a read fails:

2024-07-18T12:06:06,135 INFO  [org.example.Main.main()] org.example.tihidapi.impl.hid4java.TiHidApiSessionHid4JavaImplementation - writing: [63, 2, 114, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] ...
2024-07-18T12:06:06,136 TRACE [org.example.Main.main()] org.example.tihidapi.impl.hid4java.TiHidApiSessionHid4JavaImplementation - writing, as ISO/IEC 8859-1: ?.r.............................................................
> [40]: 3f 02 72 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
2024-07-18T12:06:06,137 INFO  [org.example.Main.main()] org.example.tihidapi.impl.hid4java.TiHidApiSessionHid4JavaImplementation - reading attempt, at most for timeout=3000 ms...
2024-07-18T12:06:06,509 ERROR [org.example.Main.main()] org.example.Main - inner error, devicePath=UsbDevicePath(vendorId=0x2047, productId=0x0301, serialNumber='B4459C6F2B002100'), status=31119h,631610,451,0,0,1,0
 java.lang.RuntimeException: java.lang.NegativeArraySizeException: -1
        at org.example.tihidapi.impl.hid4java.TiHidApiSessionFactoryHid4JavaImplementation.runWithSession(TiHidApiSessionFactoryHid4JavaImplementation.java:41) ~[classes/:?]
        at org.example.apdapi.Api.read(Api.java:97) ~[classes/:?]
        at org.example.Main.main(Main.java:51) ~[classes/:?]
        at org.codehaus.mojo.exec.ExecJavaMojo.doMain(ExecJavaMojo.java:385) ~[?:?]
        at org.codehaus.mojo.exec.ExecJavaMojo.doExec(ExecJavaMojo.java:374) ~[?:?]
        at org.codehaus.mojo.exec.ExecJavaMojo.lambda$execute$0(ExecJavaMojo.java:296) ~[?:?]
        at java.base/java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.NegativeArraySizeException: -1
        at org.hid4java.HidDevice.read(HidDevice.java:402) ~[hid4java-0.8.0.jar:0.8.0]
        at org.example.tihidapi.impl.hid4java.TiHidApiSessionHid4JavaImplementation.read(TiHidApiSessionHid4JavaImplementation.java:94) ~[classes/:?]
        at org.example.apdapi.Api.lambda$read$1(Api.java:108) ~[classes/:?]
        at org.example.tihidapi.impl.hid4java.TiHidApiSessionFactoryHid4JavaImplementation.runWithSession(TiHidApiSessionFactoryHid4JavaImplementation.java:39) ~[classes/:?]
        ... 6 more

this happened when I intentionally disconnected the device while it was being read. I would expect an IOException or something