diff --git a/spring-webflow/src/main/java/org/springframework/webflow/engine/builder/model/FlowModelFlowBuilder.java b/spring-webflow/src/main/java/org/springframework/webflow/engine/builder/model/FlowModelFlowBuilder.java
index 0810b53e..e2ac9829 100644
--- a/spring-webflow/src/main/java/org/springframework/webflow/engine/builder/model/FlowModelFlowBuilder.java
+++ b/spring-webflow/src/main/java/org/springframework/webflow/engine/builder/model/FlowModelFlowBuilder.java
@@ -925,7 +925,10 @@ public class FlowModelFlowBuilder extends AbstractFlowBuilder {
 			try {
 				return resource.createRelative(location);
 			} catch (IOException e) {
-				throw new RuntimeException(e);
+				IllegalArgumentException iae = new IllegalArgumentException(
+						"Unable to access a flow relative resource at location '" + location + "'");
+				iae.initCause(e);
+				throw iae;
 			}
 		}
 	}
diff --git a/spring-webflow/src/main/java/org/springframework/webflow/mvc/view/FlowViewResolver.java b/spring-webflow/src/main/java/org/springframework/webflow/mvc/view/FlowViewResolver.java
index 0b0a9a62..007827fd 100644
--- a/spring-webflow/src/main/java/org/springframework/webflow/mvc/view/FlowViewResolver.java
+++ b/spring-webflow/src/main/java/org/springframework/webflow/mvc/view/FlowViewResolver.java
@@ -26,5 +26,12 @@ import org.springframework.webflow.execution.RequestContext;
  * @see ViewResolver
  */
 public interface FlowViewResolver {
+
+	/**
+	 * Resolve the Spring MVC view with the provided id.
+	 * @param viewId the view id, typically treated as a Spring MVC view name
+	 * @param context the currently executing flow
+	 * @return the resolved Spring MVC view
+	 */
 	public View resolveView(String viewId, RequestContext context);
 }
\ No newline at end of file