java.lang.UnsatisfiedLinkError: Can't find dependent libraries only during debugging

I'm working on studens project, which will need to read data send from AtMega via USB (using virtual serial port). To access serial port I'm using NeuronRobotics' nrjavaserial (https://github.com/NeuronRobotics/nrjavaserial), which is a fork of RXTX. To manage my dependencies I'm using maven. Here's what I get when I run CommPortIdentifier.getPortIdentifiers(); (or whichever static CommPortIdentifier function):

java.lang.UnsatisfiedLinkError: C:\Users\Grześ\AppData\Local\Temp\libNRJavaSerial_Grze?_0\libNRJavaSerial.dll: Can't find dependent libraries
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821)
    at java.lang.Runtime.load0(Runtime.java:809)
    at java.lang.System.load(System.java:1086)
    at gnu.io.NativeResource.loadResource(NativeResource.java:142)
    at gnu.io.NativeResource.inJarLoad(NativeResource.java:40)
    at gnu.io.NativeResource.loadLib(NativeResource.java:60)
    at gnu.io.NativeResource.load(NativeResource.java:28)
    at gnu.io.SerialManager.<init>(SerialManager.java:10)
    at gnu.io.SerialManager.getInstance(SerialManager.java:16)
    at gnu.io.RXTXCommDriver.<clinit>(RXTXCommDriver.java:87)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:109)
    at pl.edu.pwr.aerospace.enginebench.serial.SerialCommunicator.getAvaliablePorts(SerialCommunicator.java:34)
    at pl.edu.pwr.aerospace.enginebench.cli.Main.connectCommunicator(Main.java:35)
    at pl.edu.pwr.aerospace.enginebench.cli.Main.main(Main.java:21)
java.lang.UnsatisfiedLinkError: C:\Users\Grześ\AppData\Local\Temp\libNRJavaSerial_Grze?_0\libNRJavaSerial.dll: Can't find dependent libraries
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821)
    at java.lang.Runtime.load0(Runtime.java:809)
    at java.lang.System.load(System.java:1086)
    at gnu.io.NativeResource.loadResource(NativeResource.java:142)
    at gnu.io.NativeResource.inJarLoad(NativeResource.java:40)
    at gnu.io.NativeResource.loadLib(NativeResource.java:60)
    at gnu.io.NativeResource.load(NativeResource.java:28)
    at gnu.io.SerialManager.<init>(SerialManager.java:10)
    at gnu.io.SerialManager.getInstance(SerialManager.java:16)
    at gnu.io.RXTXCommDriver.<clinit>(RXTXCommDriver.java:87)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:109)
    at pl.edu.pwr.aerospace.enginebench.serial.SerialCommunicator.getAvaliablePorts(SerialCommunicator.java:34)
    at pl.edu.pwr.aerospace.enginebench.cli.Main.connectCommunicator(Main.java:35)
    at pl.edu.pwr.aerospace.enginebench.cli.Main.main(Main.java:21)
java.lang.ExceptionInInitializerError thrown while loading gnu.io.RXTXCommDriver
java.lang.NoClassDefFoundError: Could not initialize class gnu.io.RXTXCommDriver thrown while loading gnu.io.RXTXCommDriver

Here are my dependencies:

<dependencies>

        <dependency>
            <groupId>com.neuronrobotics</groupId>
            <artifactId>nrjavaserial</artifactId>
            <version>3.12.1</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
        </dependency>

</dependencies>

Strangly, this only happens during debugging, when I run program normally it works like charm. Any ideas why?

I found that people had similar problems with other libraries, however solutions for all of them was to move DLLs or update classpath, but as I'm using maven I suspect in this case the solution will be different.

I managed to fix my problem. The root cause of this problem, was my username - "Grześ", which contains non-standard character 'ś'. As you may see in the first line of exception info:

java.lang.UnsatisfiedLinkError: C:\Users\Grześ\AppData\Local\Temp\libNRJavaSerial_Grze?_0\libNRJavaSerial.dll: Can't find dependent libraries

The path contains question mark in place of this character. Changing my username in Windows properties fixed this issue