java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.nio.ByteBuffer.isDirect()' on a null object reference

GitHub | rledford | 8 months ago
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    UsbSerialDevice Null Pointer

    GitHub | 8 months ago | rledford
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.nio.ByteBuffer.isDirect()' on a null object reference
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    Android Question - USB 0.96 Issues | B4X Community - Android, iOS, desktop, server and IoT programming tools

    b4x.com | 11 months ago
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.nio.ByteBuffer.isDirect()' on a null object reference
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    NullPointerException in WorkerThread.run

    GitHub | 11 months ago | MarkoKatic
    java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.nio.ByteBuffer.isDirect()' on a null object reference
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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'boolean java.nio.ByteBuffer.isDirect()' on a null object reference

      at android.hardware.usb.UsbRequest.dequeue()
    2. Android Platform
      UsbDeviceConnection.requestWait
      1. android.hardware.usb.UsbRequest.dequeue(UsbRequest.java:156)
      2. android.hardware.usb.UsbDeviceConnection.requestWait(UsbDeviceConnection.java:230)
      2 frames
    3. com.felhr.usbserial
      UsbSerialDevice$WorkerThread.run
      1. com.felhr.usbserial.UsbSerialDevice$WorkerThread.run(UsbSerialDevice.java:213)
      1 frame