From 470aaa7ab0a09f78ccb52433da0aa53102c674c6 Mon Sep 17 00:00:00 2001
From: Manuel Rego Casasnovas <rego@igalia.com>
Date: Fri, 28 Oct 2011 19:28:17 +0200
Subject: [PATCH] [Bug #1231] Fix issue avoiding call EffortDuration.sum with
 null values

FEA: ItEr75S04BugFixing
---
 .../reports/HoursWorkedPerWorkerInAMonthScriptlet.java | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/reports/HoursWorkedPerWorkerInAMonthScriptlet.java b/libreplan-webapp/src/main/java/org/libreplan/web/reports/HoursWorkedPerWorkerInAMonthScriptlet.java
index 7101640f2..31e057655 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/reports/HoursWorkedPerWorkerInAMonthScriptlet.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/reports/HoursWorkedPerWorkerInAMonthScriptlet.java
@@ -59,10 +59,12 @@ public class HoursWorkedPerWorkerInAMonthScriptlet extends JRAbstractScriptlet {
         HoursWorkedPerWorkerInAMonthDTO dto = (HoursWorkedPerWorkerInAMonthDTO) this
                 .getFieldValue("self");
         if (!dtos.contains(dto)) {
-            EffortDuration effort = EffortDuration.sum(EffortDuration
-                    .parseFromFormattedString((String) this
-                            .getVariableValue("sumNumHours")), current);
-            this.setVariableValue("sumNumHours", effort.toFormattedString());
+            if (current != null) {
+                EffortDuration effort = EffortDuration.sum(EffortDuration
+                        .parseFromFormattedString((String) this
+                                .getVariableValue("sumNumHours")), current);
+                this.setVariableValue("sumNumHours", effort.toFormattedString());
+            }
             dtos.add(dto);
         }
     }