[phoebus] allow ArrayUByte in rgb1 image

Author: DenSinH

app/rtplot/src/main/java/org/csstudio/javafx/rtplot/internal/ImagePlot.java

@@ -36,11 +36,7 @@
 import org.csstudio.javafx.rtplot.internal.util.GraphicsUtils;
 import org.csstudio.javafx.rtplot.internal.util.LinearScreenTransform;
 import org.csstudio.javafx.rtplot.internal.util.Log10;
-import org.epics.util.array.ArrayByte;
-import org.epics.util.array.ArrayInteger;
-import org.epics.util.array.ArrayShort;
-import org.epics.util.array.IteratorNumber;
-import org.epics.util.array.ListNumber;
+import org.epics.util.array.*;
 import org.epics.vtype.VImageType;
 import org.phoebus.ui.javafx.BufferUtil;
 import org.phoebus.ui.javafx.ChildCare;
@@ -566,7 +562,7 @@ protected BufferedImage updateImageBuffer()
                 }
                 else
                 {
-                    if (!(numbers instanceof ArrayByte))
+                    if (!(numbers instanceof ArrayByte || numbers instanceof ArrayUByte))
                         logger.log(Level.WARNING, "Cannot handle rgb1 image data of type " + numbers.getClass().getName());
                     if (unsigned)
                     {