diff --git a/src/main/java/de/ailis/usb4java/AbstractIrpQueue.java b/src/main/java/de/ailis/usb4java/AbstractIrpQueue.java
index 7408808..a964cfc 100644
--- a/src/main/java/de/ailis/usb4java/AbstractIrpQueue.java
+++ b/src/main/java/de/ailis/usb4java/AbstractIrpQueue.java
@@ -92,7 +92,7 @@ public abstract class AbstractIrpQueue<T extends UsbIrp>
 
             // Get next IRP and mark the thread as closing before sending the
             // events for the previous IRP
-            T nextIrp = this.irps.poll();
+            final T nextIrp = this.irps.poll();
             if (nextIrp == null) this.processor = null;
 
             // Finish the previous IRP
diff --git a/src/main/java/de/ailis/usb4java/Usb4JavaHub.java b/src/main/java/de/ailis/usb4java/Usb4JavaHub.java
index d8259c2..1f0f327 100644
--- a/src/main/java/de/ailis/usb4java/Usb4JavaHub.java
+++ b/src/main/java/de/ailis/usb4java/Usb4JavaHub.java
@@ -108,7 +108,7 @@ public final class Usb4JavaHub extends Usb4JavaDevice implements UsbHub,
         if (this == obj) return true;
         if (obj == null) return false;
         if (getClass() != obj.getClass()) return false;
-        Usb4JavaDevice other = (Usb4JavaDevice) obj;
+        final Usb4JavaDevice other = (Usb4JavaDevice) obj;
         return getId().equals(other.getId());
     }    
 }