Minor fixes

Signed-off-by: pierantoniomerlino <pierantonio.merlino@eurotech.com>

Author: pierantoniomerlino

kura/test/org.eclipse.kura.linux.gpio.libgpiod.test/src/test/java/org/eclipse/kura/linux/gpio/libgpiod1/LibGpiodV1GPIOServiceTest.java

@@ -60,7 +60,7 @@ public void setup() throws IOException {
         this.nativeInterfaceMock = mock(LibGpiodV1Native.class);
         this.nativeMock.when(() -> Native.load("gpiod", LibGpiodV1Native.class)).thenReturn(this.nativeInterfaceMock);
         this.nativeInterfaceWrapperMock = mockStatic(LibGpiodV1NativeWrapper.class);
-        this.nativeInterfaceWrapperMock.when(() -> LibGpiodV1NativeWrapper.getInstance())
+        this.nativeInterfaceWrapperMock.when(LibGpiodV1NativeWrapper::getInstance)
                 .thenReturn(this.nativeInterfaceMock);
 
         Pointer chip0 = Pointer.createConstant(0);

kura/test/org.eclipse.kura.linux.gpio.libgpiod.test/src/test/java/org/eclipse/kura/linux/gpio/libgpiod1/LibGpiodV1PinTest.java

@@ -40,7 +40,6 @@
 import org.mockito.ArgumentMatcher;
 import org.mockito.MockedStatic;
 
-import com.sun.jna.Memory;
 import com.sun.jna.Native;
 import com.sun.jna.Pointer;