StatusPollTimer can now properly set the update interval

ugs-core/src/com/willwinder/universalgcodesender/StatusPollTimer.java

@@ -118,7 +118,7 @@ public void receivedStatus() {
      */
     public void setUpdateInterval(int updateInterval) {
         this.updateInterval = Math.max(updateInterval, 10);
-        if (timer.isRunning()) {
+        if (timer != null && timer.isRunning()) {
             stop();
             start();
         }

ugs-core/src/com/willwinder/universalgcodesender/model/GUIBackend.java

@@ -697,7 +697,7 @@ public void applySettingsToController(Settings settings, IController controller)
                     .append(Localization.getString("firmware.feature.linesToArc")).append(NEW_LINE)
                     .append(Localization.getString("firmware.feature.statusUpdates")).append(NEW_LINE)
                     .append(Localization.getString("firmware.feature.statusUpdateRate"));
-
+            logger.log(Level.SEVERE, "Could not load firmware settings", ex);
             throw new Exception(message.toString(), ex);
         }
     }

ugs-core/test/com/willwinder/universalgcodesender/StatusPollTimerTest.java

@@ -0,0 +1,26 @@
+package com.willwinder.universalgcodesender;
+
+import static org.junit.Assert.assertEquals;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+public class StatusPollTimerTest {
+    private StatusPollTimer statusPollTimer;
+
+    @Mock
+    private IController controller;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        statusPollTimer = new StatusPollTimer(controller);
+    }
+
+    @Test
+    public void setUpdateIntervalShouldSetTheIntervalWhenTimerIsNotRunning() {
+        statusPollTimer.setUpdateInterval(100);
+        assertEquals(100, statusPollTimer.getUpdateInterval());
+    }
+}