[517917] Do not modify the lost event end cache in

lookForUnconnectedLostEnd.

Found/Lost message cache is not empty now during LostMessageEnd search.   

Bug: 517917
Change-Id: Ica799b36b3b524fb9f3f53f8085cb019efd7a7c6
Signed-off-by: jmallet <jessy.mallet@obeo.fr>

9 files changed, 995 insertions, 34 deletions

diff --git a/plugins/org.eclipse.sirius.diagram.sequence/src/org/eclipse/sirius/diagram/sequence/business/internal/layout/vertical/SequenceVerticalLayout.java b/plugins/org.eclipse.sirius.diagram.sequence/src/org/eclipse/sirius/diagram/sequence/business/internal/layout/vertical/SequenceVerticalLayout.java
index 1480fa3da1..3733adc006 100644
--- a/plugins/org.eclipse.sirius.diagram.sequence/src/org/eclipse/sirius/diagram/sequence/business/internal/layout/vertical/SequenceVerticalLayout.java
+++ b/plugins/org.eclipse.sirius.diagram.sequence/src/org/eclipse/sirius/diagram/sequence/business/internal/layout/vertical/SequenceVerticalLayout.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2010, 2012 THALES GLOBAL SERVICES.
+ * Copyright (c) 2010, 2017 THALES GLOBAL SERVICES and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -72,8 +72,8 @@ import com.google.common.collect.Ordering;
 import com.google.common.collect.Sets;
 
 /**
- * Computes the appropriate graphical locations of sequence events and lifelines
- * on a sequence diagram to reflect the semantic order.
+ * Computes the appropriate graphical locations of sequence events and lifelines on a sequence diagram to reflect the
+ * semantic order.
  * 
  * @author pcdavid, mporhel
  */
@@ -110,8 +110,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     protected final Multimap<EventEnd, ISequenceEvent> endToISequencEvents;
 
     /**
-     * A map to link an {@link ISequenceEvent} to its starting and ending
-     * {@link EventEnd}.
+     * A map to link an {@link ISequenceEvent} to its starting and ending {@link EventEnd}.
      */
     protected final Multimap<ISequenceEvent, EventEnd> iSequenceEventsToEventEnds;
 
@@ -126,8 +125,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     };
 
     /**
-     * The global time range of the diagram. Can be udpated during layout
-     * computation.
+     * The global time range of the diagram. Can be udpated during layout computation.
      */
     protected Range timeRange;
 
@@ -146,8 +144,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     };
 
     /**
-     * An ordering to sort {@link Lifeline} regarding the height of their
-     * {@link InstanceRole}.
+     * An ordering to sort {@link Lifeline} regarding the height of their {@link InstanceRole}.
      */
     private final Ordering<Lifeline> heightOrdering = Ordering.natural().onResultOf(instanceRoleHeight);
 
@@ -199,8 +196,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
      * Constructor.
      * 
      * @param sequenceDiagram
-     *            the sequence diagram for which to compute the messages
-     *            locations.
+     *            the sequence diagram for which to compute the messages locations.
      */
     public SequenceVerticalLayout(SequenceDiagram sequenceDiagram) {
         super(sequenceDiagram);
@@ -348,11 +344,9 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     /**
-     * Computes the absolute vertical (Y) location for all the messages in the
-     * sequence diagram.
+     * Computes the absolute vertical (Y) location for all the messages in the sequence diagram.
      * 
-     * @return a map associating each message edit part to the new absolute
-     *         vertical location it should have.
+     * @return a map associating each message edit part to the new absolute vertical location it should have.
      */
     private Map<EventEnd, Integer> computeEndBounds(boolean pack) {
         final Map<EventEnd, Integer> result = Maps.newLinkedHashMap();
@@ -780,8 +774,8 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     private void lookForUnconnectedLostEnd() {
-        Collection<LostMessageEnd> allLostMessageEnds = sequenceDiagram.getAllLostMessageEnds();
-        Collection<LostMessageEnd> discoveredLostEnds = Lists.newArrayList();
+        Collection<LostMessageEnd> allLostMessageEnds = new ArrayList<>(sequenceDiagram.getAllLostMessageEnds());
+        Collection<LostMessageEnd> discoveredLostEnds = new ArrayList<>();
         for (Message knownMsgs : Iterables.filter(iSequenceEventsToEventEnds.keySet(), Message.class)) {
             ISequenceNode sourceElement = knownMsgs.getSourceElement();
             if (sourceElement instanceof LostMessageEnd) {
@@ -800,8 +794,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     /**
-     * Determines the range of absolute Y locations in which the messages can be
-     * laid out.
+     * Determines the range of absolute Y locations in which the messages can be laid out.
      * 
      * @param pack
      *            packing layout if true.
@@ -927,8 +920,8 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     /**
-     * Increase the time range to the given upperBound. If the current upper
-     * bounds is bigger than the parameter, it does nothing.
+     * Increase the time range to the given upperBound. If the current upper bounds is bigger than the parameter, it
+     * does nothing.
      * 
      * @param upperBound
      *            the new minimum upperBound.
@@ -940,8 +933,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     /**
-     * Return the minimum valid lower start time on the {@link Lifeline} of the
-     * given {@link InstanceRole}.
+     * Return the minimum valid lower start time on the {@link Lifeline} of the given {@link InstanceRole}.
      * 
      * @param irep
      *            the current {@link InstanceRole}.
@@ -954,8 +946,7 @@ public class SequenceVerticalLayout extends AbstractSequenceOrderingLayout<ISequ
     }
 
     /**
-     * Register event old and init context (ends, old layout data, previous
-     * bounds flag, creators, destructors, ...).
+     * Register event old and init context (ends, old layout data, previous bounds flag, creators, destructors, ...).
      */
     protected void registerEventEnds() {
         for (EventEnd end : Lists.newArrayList(semanticOrdering)) {
diff --git a/plugins/org.eclipse.sirius.tests.junit/src/org/eclipse/sirius/tests/unit/diagram/sequence/InteractionsConstants.java b/plugins/org.eclipse.sirius.tests.junit/src/org/eclipse/sirius/tests/unit/diagram/sequence/InteractionsConstants.java
index d216982e82..0e95e05f1d 100644
--- a/plugins/org.eclipse.sirius.tests.junit/src/org/eclipse/sirius/tests/unit/diagram/sequence/InteractionsConstants.java
+++ b/plugins/org.eclipse.sirius.tests.junit/src/org/eclipse/sirius/tests/unit/diagram/sequence/InteractionsConstants.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2010, 2014 THALES GLOBAL SERVICES.
+ * Copyright (c) 2010, 2017 THALES GLOBAL SERVICES.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -54,6 +54,8 @@ public final class InteractionsConstants {
 
     public static final String WRITE_TOOL_ID = "Write";
 
+    public static final String FOUND_READ_TOOL_ID = "Found Read";
+
     public static final String CALL_TOOL_ID = "Call";
 
     public static final String RETURN_TOOL_ID = "Return";
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/LostFoundMessage.interactions b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/LostFoundMessage.interactions
new file mode 100644
index 0000000000..9d82e44cd8
--- /dev/null
+++ b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/LostFoundMessage.interactions
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interactions:Model xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:interactions="http://www.eclipse.org/sirius/sample/interactions">
+  <ownedInteractions name="i1">
+    <participants name="newParticipant1"/>
+    <participants name="newParticipant2"/>
+    <participants name="newParticipant3"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m10" receivingEnd="//@ownedInteractions.0/@ends.6"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m9" receivingEnd="//@ownedInteractions.0/@ends.7" isWrite="true"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m8" receivingEnd="//@ownedInteractions.0/@ends.4" isWrite="true"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m7" receivingEnd="//@ownedInteractions.0/@ends.3"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m6" receivingEnd="//@ownedInteractions.0/@ends.11"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m5" receivingEnd="//@ownedInteractions.0/@ends.9"/>
+    <messages xsi:type="interactions:CallMessage" name="m13" receivingEnd="//@ownedInteractions.0/@ends.5"/>
+    <messages xsi:type="interactions:CallMessage" name="m1" sendingEnd="//@ownedInteractions.0/@ends.0" receivingEnd="//@ownedInteractions.0/@ends.1"/>
+    <messages xsi:type="interactions:FeatureAccessMessage" name="m8" sendingEnd="//@ownedInteractions.0/@ends.10"/>
+    <messages xsi:type="interactions:CallMessage" name="m5" sendingEnd="//@ownedInteractions.0/@ends.12"/>
+    <executions name="e1" owner="//@ownedInteractions.0/@participants.1" start="//@ownedInteractions.0/@ends.1" end="//@ownedInteractions.0/@ends.2"/>
+    <executions name="e4" owner="//@ownedInteractions.0/@participants.2" start="//@ownedInteractions.0/@ends.5" end="//@ownedInteractions.0/@ends.8"/>
+    <ends xsi:type="interactions:MessageEnd" name="send_m1" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.7"/>
+    <ends xsi:type="interactions:MixEnd" name="start_e1" context="//@ownedInteractions.0/@participants.1" execution="//@ownedInteractions.0/@executions.0" message="//@ownedInteractions.0/@messages.7"/>
+    <ends xsi:type="interactions:MixEnd" name="finish_e1" context="//@ownedInteractions.0/@participants.1" execution="//@ownedInteractions.0/@executions.0"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m7" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.3"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m8" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.2"/>
+    <ends xsi:type="interactions:MixEnd" name="start_e4" context="//@ownedInteractions.0/@participants.2" execution="//@ownedInteractions.0/@executions.1" message="//@ownedInteractions.0/@messages.6"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m10" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.0"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m9" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.1"/>
+    <ends xsi:type="interactions:ExecutionEnd" name="finishe4" context="//@ownedInteractions.0/@participants.2" execution="//@ownedInteractions.0/@executions.1"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m5" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.5"/>
+    <ends xsi:type="interactions:MessageEnd" name="send_m8" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.8"/>
+    <ends xsi:type="interactions:MessageEnd" name="receive_m6" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.4"/>
+    <ends xsi:type="interactions:MessageEnd" name="send_m5" context="//@ownedInteractions.0/@participants.0" message="//@ownedInteractions.0/@messages.9"/>
+  </ownedInteractions>
+</interactions:Model>
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/lostFoundMessage.aird b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/lostFoundMessage.aird
new file mode 100644
index 0000000000..3d6662ac23
--- /dev/null
+++ b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/lostFoundMessage.aird
@@ -0,0 +1,713 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:description="http://www.eclipse.org/sirius/description/1.1.0" xmlns:description_1="http://www.eclipse.org/sirius/diagram/sequence/description/2.0.0" xmlns:description_2="http://www.eclipse.org/sirius/diagram/description/1.1.0" xmlns:diagram="http://www.eclipse.org/sirius/diagram/1.1.0" xmlns:interactions="http://www.eclipse.org/sirius/sample/interactions" xmlns:notation="http://www.eclipse.org/gmf/runtime/1.0.2/notation" xmlns:sequence="http://www.eclipse.org/sirius/diagram/sequence/2.0.0" xmlns:style="http://www.eclipse.org/sirius/diagram/description/style/1.1.0" xmlns:viewpoint="http://www.eclipse.org/sirius/1.1.0" xsi:schemaLocation="http://www.eclipse.org/sirius/description/1.1.0 http://www.eclipse.org/sirius/1.1.0#//description http://www.eclipse.org/sirius/diagram/sequence/description/2.0.0 http://www.eclipse.org/sirius/diagram/sequence/2.0.0#//description http://www.eclipse.org/sirius/diagram/description/1.1.0 http://www.eclipse.org/sirius/diagram/1.1.0#//description http://www.eclipse.org/sirius/diagram/description/style/1.1.0 http://www.eclipse.org/sirius/diagram/1.1.0#//description/style">
+  <viewpoint:DAnalysis xmi:id="_8t7zUDGiEee23qXEKKuVkg" selectedViews="_DqsKEDGjEee23qXEKKuVkg" version="12.0.0.201704271200">
+    <semanticResources>LostFoundMessage.interactions</semanticResources>
+    <ownedViews xmi:type="viewpoint:DView" xmi:id="_DqsKEDGjEee23qXEKKuVkg">
+      <viewpoint xmi:type="description:Viewpoint" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']"/>
+      <ownedRepresentationDescriptors xmi:type="viewpoint:DRepresentationDescriptor" xmi:id="_EGBbMDGjEee23qXEKKuVkg" name="Sequence Diagram on i1" repPath="#_EF_mADGjEee23qXEKKuVkg">
+        <description xmi:type="description_1:SequenceDiagramDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']"/>
+        <target xmi:type="interactions:Interaction" href="LostFoundMessage.interactions#//@ownedInteractions.0"/>
+      </ownedRepresentationDescriptors>
+    </ownedViews>
+  </viewpoint:DAnalysis>
+  <sequence:SequenceDDiagram xmi:id="_EF_mADGjEee23qXEKKuVkg" name="Sequence Diagram on i1">
+    <ownedAnnotationEntries xmi:type="description:AnnotationEntry" xmi:id="_EF_mATGjEee23qXEKKuVkg" source="DANNOTATION_CUSTOMIZATION_KEY">
+      <data xmi:type="diagram:ComputedStyleDescriptionRegistry" xmi:id="_EF_mAjGjEee23qXEKKuVkg"/>
+    </ownedAnnotationEntries>
+    <ownedAnnotationEntries xmi:type="description:AnnotationEntry" xmi:id="_EGWyYDGjEee23qXEKKuVkg" source="GMF_DIAGRAMS">
+      <data xmi:type="notation:Diagram" xmi:id="_EGXZcDGjEee23qXEKKuVkg" type="Sirius" element="_EF_mADGjEee23qXEKKuVkg" measurementUnit="Pixel">
+        <children xmi:type="notation:Node" xmi:id="_E33H0DGjEee23qXEKKuVkg" type="2001" element="_E3MZcDGjEee23qXEKKuVkg">
+          <children xmi:type="notation:Node" xmi:id="_E37ZQDGjEee23qXEKKuVkg" type="5002">
+            <layoutConstraint xmi:type="notation:Location" xmi:id="_E37ZQTGjEee23qXEKKuVkg" y="5"/>
+          </children>
+          <children xmi:type="notation:Node" xmi:id="_E4A40DGjEee23qXEKKuVkg" type="3001" element="_E3eGQDGjEee23qXEKKuVkg">
+            <children xmi:type="notation:Node" xmi:id="_E4A40zGjEee23qXEKKuVkg" type="5001">
+              <layoutConstraint xmi:type="notation:Location" xmi:id="_E4A41DGjEee23qXEKKuVkg" x="-44"/>
+            </children>
+            <children xmi:type="notation:Node" xmi:id="_E4JbsDGjEee23qXEKKuVkg" type="3003" element="_E3etUjGjEee23qXEKKuVkg">
+              <styles xmi:type="notation:ShapeStyle" xmi:id="_E4JbsTGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+              <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E4JbsjGjEee23qXEKKuVkg"/>
+            </children>
+            <children xmi:type="notation:Node" xmi:id="_E4JbszGjEee23qXEKKuVkg" type="3001" element="_E3etUDGjEee23qXEKKuVkg">
+              <children xmi:type="notation:Node" xmi:id="_E4KCwDGjEee23qXEKKuVkg" type="5001">
+                <layoutConstraint xmi:type="notation:Location" xmi:id="_E4KCwTGjEee23qXEKKuVkg" x="-1"/>
+              </children>
+              <children xmi:type="notation:Node" xmi:id="_E4L38DGjEee23qXEKKuVkg" type="3002" element="_E3etUTGjEee23qXEKKuVkg">
+                <styles xmi:type="notation:ShapeStyle" xmi:id="_E4L38TGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+                <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E4L38jGjEee23qXEKKuVkg"/>
+              </children>
+              <styles xmi:type="notation:ShapeStyle" xmi:id="_E4JbtDGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="8"/>
+              <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E4JbtTGjEee23qXEKKuVkg" x="-53" y="602" width="10" height="10"/>
+            </children>
+            <styles xmi:type="notation:ShapeStyle" xmi:id="_E4A40TGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="8"/>
+            <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E4A40jGjEee23qXEKKuVkg" y="42" width="10" height="602"/>
+          </children>
+          <children xmi:type="notation:Node" xmi:id="_E4I0oDGjEee23qXEKKuVkg" type="3003" element="_E3VjYDGjEee23qXEKKuVkg">
+            <styles xmi:type="notation:ShapeStyle" xmi:id="_E4I0oTGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+            <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E4I0ojGjEee23qXEKKuVkg"/>
+          </children>
+          <styles xmi:type="notation:ShapeStyle" xmi:id="_E33H0TGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="12" bold="true"/>
+          <layoutConstraint xmi:type="notation:Bounds" xmi:id="_E33H0jGjEee23qXEKKuVkg" x="80" y="50" width="120" height="50"/>
+        </children>
+        <children xmi:type="notation:Node" xmi:id="_FD0gMDGjEee23qXEKKuVkg" type="2001" element="_FDqIIDGjEee23qXEKKuVkg">
+          <children xmi:type="notation:Node" xmi:id="_FD1HQDGjEee23qXEKKuVkg" type="5002">
+            <layoutConstraint xmi:type="notation:Location" xmi:id="_FD1HQTGjEee23qXEKKuVkg" y="5"/>
+          </children>
+          <children xmi:type="notation:Node" xmi:id="_FD1HQjGjEee23qXEKKuVkg" type="3001" element="_FDr9UDGjEee23qXEKKuVkg">
+            <children xmi:type="notation:Node" xmi:id="_FD1uUDGjEee23qXEKKuVkg" type="5001">
+              <layoutConstraint xmi:type="notation:Location" xmi:id="_FD1uUTGjEee23qXEKKuVkg" x="-44"/>
+            </children>
+            <children xmi:type="notation:Node" xmi:id="_FD2VYDGjEee23qXEKKuVkg" type="3003" element="_FDr9UzGjEee23qXEKKuVkg">
+              <styles xmi:type="notation:ShapeStyle" xmi:id="_FD2VYTGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+              <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD2VYjGjEee23qXEKKuVkg"/>
+            </children>
+            <children xmi:type="notation:Node" xmi:id="_FD2VYzGjEee23qXEKKuVkg" type="3001" element="_FDr9UTGjEee23qXEKKuVkg">
+              <children xmi:type="notation:Node" xmi:id="_FD2VZjGjEee23qXEKKuVkg" type="5001">
+                <layoutConstraint xmi:type="notation:Location" xmi:id="_FD2VZzGjEee23qXEKKuVkg" x="-1"/>
+              </children>
+              <children xmi:type="notation:Node" xmi:id="_FD28cDGjEee23qXEKKuVkg" type="3002" element="_FDr9UjGjEee23qXEKKuVkg">
+                <styles xmi:type="notation:ShapeStyle" xmi:id="_FD28cTGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+                <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD28cjGjEee23qXEKKuVkg"/>
+              </children>
+              <styles xmi:type="notation:ShapeStyle" xmi:id="_FD2VZDGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="8"/>
+              <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD2VZTGjEee23qXEKKuVkg" x="-53" y="602" width="10" height="10"/>
+            </children>
+            <children xmi:type="notation:Node" xmi:id="_F8AscDGjEee23qXEKKuVkg" type="3001" element="_F7w00DGjEee23qXEKKuVkg">
+              <children xmi:type="notation:Node" xmi:id="_F8BTgDGjEee23qXEKKuVkg" type="5001">
+                <layoutConstraint xmi:type="notation:Location" xmi:id="_F8BTgTGjEee23qXEKKuVkg" x="-1"/>
+              </children>
+              <children xmi:type="notation:Node" xmi:id="_F8B6kDGjEee23qXEKKuVkg" type="3003" element="_F7w00TGjEee23qXEKKuVkg">
+                <styles xmi:type="notation:ShapeStyle" xmi:id="_F8B6kTGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+                <layoutConstraint xmi:type="notation:Bounds" xmi:id="_F8B6kjGjEee23qXEKKuVkg"/>
+              </children>
+              <styles xmi:type="notation:ShapeStyle" xmi:id="_F8AscTGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="8"/>
+              <layoutConstraint xmi:type="notation:Bounds" xmi:id="_F8AscjGjEee23qXEKKuVkg" x="-53" y="33" width="20" height="57"/>
+            </children>
+            <styles xmi:type="notation:ShapeStyle" xmi:id="_FD1HQzGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="8"/>
+            <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD1HRDGjEee23qXEKKuVkg" y="42" width="10" height="602"/>
+          </children>
+          <children xmi:type="notation:Node" xmi:id="_FD1uUjGjEee23qXEKKuVkg" type="3003" element="_FDqvMDGjEee23qXEKKuVkg">
+            <styles xmi:type="notation:ShapeStyle" xmi:id="_FD1uUzGjEee23qXEKKuVkg" fontName="Segoe UI"/>
+            <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD1uVDGjEee23qXEKKuVkg"/>
+          </children>
+          <styles xmi:type="notation:ShapeStyle" xmi:id="_FD0gMTGjEee23qXEKKuVkg" fontName="Segoe UI" fontHeight="12" bold="true"/>
+          <layoutConstraint xmi:type="notation:Bounds" xmi:id="_FD0gMjGjEee23qXEKKuVkg" x="260" y="50" width="120" height="50"/>
+        </children>
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+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Call%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_9tW1QDSdEeejiob8z221zA" name="m5" sourceNode="_9tTx8DSdEeejiob8z221zA" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.5"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.5"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.9"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_9tZRgDSdEeejiob8z221zA" y="456" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_9tW1QTSdEeejiob8z221zA" size="2" strokeColor="77,137,20">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_9tW1QjSdEeejiob8z221zA" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_rYRQUDTJEee72YZ_AaArvw" name="m6" sourceNode="_rYKioDTJEee72YZ_AaArvw" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.4"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.4"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.11"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_rYYlEDTJEee72YZ_AaArvw" y="546" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_rYSecDTJEee72YZ_AaArvw" size="2" strokeColor="77,137,20">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_rYTFgDTJEee72YZ_AaArvw" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_ucIC4DTJEee72YZ_AaArvw" name="m7" sourceNode="_ucFmoDTJEee72YZ_AaArvw" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.3"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.3"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.3"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_ucLGMDTJEee72YZ_AaArvw" y="235" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_ucIC4TTJEee72YZ_AaArvw" size="2" strokeColor="77,137,20">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_ucIp8DTJEee72YZ_AaArvw" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_RGZXoDTMEee72YZ_AaArvw" name="m8" sourceNode="_RGYJgDTMEee72YZ_AaArvw" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.2"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.2"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.4"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_RGfeQDTMEee72YZ_AaArvw" y="319" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_RGdCADTMEee72YZ_AaArvw" size="2" strokeColor="224,133,3">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@conditionnalStyles.0/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_RGdCATTMEee72YZ_AaArvw" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_RwfdgDTMEee72YZ_AaArvw" name="m9" sourceNode="_RwePYDTMEee72YZ_AaArvw" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.1"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.1"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.7"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_RwhSsDTMEee72YZ_AaArvw" y="364" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_RwgEkDTMEee72YZ_AaArvw" size="2" strokeColor="224,133,3">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@conditionnalStyles.0/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_RwgEkTTMEee72YZ_AaArvw" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <ownedDiagramElements xmi:type="diagram:DEdge" xmi:id="_SaSocDTMEee72YZ_AaArvw" name="m10" sourceNode="_SaRaUDTMEee72YZ_AaArvw" targetNode="_E3eGQDGjEee23qXEKKuVkg">
+      <target xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.0"/>
+      <semanticElements xmi:type="interactions:FeatureAccessMessage" href="LostFoundMessage.interactions#//@ownedInteractions.0/@messages.0"/>
+      <semanticElements xmi:type="interactions:MessageEnd" href="LostFoundMessage.interactions#//@ownedInteractions.0/@ends.6"/>
+      <semanticElements xmi:type="interactions:Participant" href="LostFoundMessage.interactions#//@ownedInteractions.0/@participants.0"/>
+      <graphicalFilters xmi:type="diagram:AbsoluteBoundsFilter" xmi:id="_SaT2kDTMEee72YZ_AaArvw" y="349" height="0"/>
+      <ownedStyle xmi:type="diagram:EdgeStyle" xmi:id="_SaSocTTMEee72YZ_AaArvw" size="2" strokeColor="77,137,20">
+        <description xmi:type="style:EdgeStyleDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']/@style"/>
+        <centerLabelStyle xmi:type="diagram:CenterLabelStyle" xmi:id="_SaSocjTMEee72YZ_AaArvw" showIcon="false"/>
+      </ownedStyle>
+      <actualMapping xmi:type="description_1:BasicMessageMapping" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer/@edgeMappings[name='Feature%20Access%20Message']"/>
+    </ownedDiagramElements>
+    <description xmi:type="description_1:SequenceDiagramDescription" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']"/>
+    <filterVariableHistory xmi:type="diagram:FilterVariableHistory" xmi:id="_EGANETGjEee23qXEKKuVkg"/>
+    <activatedLayers xmi:type="description_2:Layer" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@defaultLayer"/>
+    <activatedLayers xmi:type="description_2:AdditionalLayer" href="platform:/plugin/org.eclipse.sirius.sample.interactions.design/description/interaction.odesign#//@ownedViewpoints[name='Interactions']/@ownedRepresentations[name='Sequence%20Diagram%20on%20Interaction']/@additionalLayers[name='Lost%20Found']"/>
+    <target xmi:type="interactions:Interaction" href="LostFoundMessage.interactions#//@ownedInteractions.0"/>
+  </sequence:SequenceDDiagram>
+</xmi:XMI>
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/types.ecore b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/types.ecore
new file mode 100644
index 0000000000..0a301e7c4a
--- /dev/null
+++ b/plugins/org.eclipse.sirius.tests.swtbot/data/unit/sequence/createLostFoundMessage/types.ecore
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ecore:EPackage xmi:version="2.0"
+    xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="simple">
+  <eClassifiers xsi:type="ecore:EClass" name="A">
+    <eOperations name="computeSomething" lowerBound="1" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString">
+      <eParameters name="input" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+    </eOperations>
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+    <eStructuralFeatures xsi:type="ecore:EReference" name="b" eType="#//B"/>
+  </eClassifiers>
+  <eClassifiers xsi:type="ecore:EClass" name="B">
+    <eOperations name="testSomethingElse" upperBound="0"/>
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="prefix" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+  </eClassifiers>
+  <eClassifiers xsi:type="ecore:EClass" name="C">
+    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
+    <eStructuralFeatures xsi:type="ecore:EReference" name="a" upperBound="-1" eType="#//A"/>
+  </eClassifiers>
+</ecore:EPackage>
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractLostFoundModelSequenceTests.java b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractLostFoundModelSequenceTests.java
new file mode 100644
index 0000000000..14b53079ce
--- /dev/null
+++ b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractLostFoundModelSequenceTests.java
@@ -0,0 +1,69 @@
+/*******************************************************************************
+ * Copyright (c) 2017 THALES GLOBAL SERVICES.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.tests.swtbot.sequence;
+
+import org.eclipse.sirius.ext.base.Option;
+import org.eclipse.sirius.ext.base.Options;
+import org.eclipse.sirius.tests.unit.diagram.sequence.InteractionsConstants;
+
+/**
+ * Abstract test class for sequence diagrams with Found/Lost messages.
+ * 
+ * @author jmallet
+ */
+public abstract class AbstractLostFoundModelSequenceTests extends AbstractSequenceDiagramTestCase {
+
+    private static final String PATH = DATA_UNIT_DIR + "createLostFoundMessage/";
+
+    private static final String REPRESENTATION_NAME = "Sequence Diagram on i1";
+
+    private static final String MODEL = "LostFoundMessage.interactions";
+
+    private static final String SESSION_FILE = "lostFoundMessage.aird";
+
+    private static final String TYPES_FILE = "types.ecore";
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected String getPath() {
+        return PATH;
+    }
+
+    protected String getSemanticModel() {
+        return MODEL;
+    }
+
+    protected String getTypesSemanticModel() {
+        return TYPES_FILE;
+    }
+
+    protected String getSessionModel() {
+        return SESSION_FILE;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected String getRepresentationId() {
+        return InteractionsConstants.SEQUENCE_DIAGRAM_REPRESENTATION_ID;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected Option<String> getDRepresentationName() {
+        return Options.newSome(REPRESENTATION_NAME);
+    }
+}
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractSequenceDiagramTestCase.java b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractSequenceDiagramTestCase.java
index 4e5aeedec6..98151989c7 100644
--- a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractSequenceDiagramTestCase.java
+++ b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/AbstractSequenceDiagramTestCase.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2010, 2014 THALES GLOBAL SERVICES.
+ * Copyright (c) 2010, 2017 THALES GLOBAL SERVICES.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -118,6 +118,8 @@ public abstract class AbstractSequenceDiagramTestCase extends AbstractSiriusSwtB
     protected static final String LIFELINE_D = "d : D";
 
     protected static final String LIFELINE_E = "e : E";
+    
+    protected static final String LIFELINE_1 = "newParticipant1 : ";
 
     protected static final String NEW_LIFELINE = "newParticipant4 : ";
 
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/FoundLostMessageTests.java b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/FoundLostMessageTests.java
new file mode 100644
index 0000000000..af1f8e0eba
--- /dev/null
+++ b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/sequence/FoundLostMessageTests.java
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * Copyright (c) 2017 THALES GLOBAL SERVICES.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.sirius.tests.swtbot.sequence;
+
+import org.eclipse.draw2d.geometry.Point;
+import org.eclipse.draw2d.geometry.Rectangle;
+import org.eclipse.sirius.tests.unit.diagram.sequence.InteractionsConstants;
+import org.eclipse.swtbot.eclipse.gef.finder.widgets.SWTBotGefEditPart;
+
+/**
+ * Test class for Found/Lost message creation
+ * <ol>
+ * <li>Test Found message creation</li>
+ * <li>Test Found message creation with message re-ordering.</li>
+ * <li>Test Found message move after creation.</li>
+ * </ol>
+ * 
+ * @author jmallet
+ */
+public class FoundLostMessageTests extends AbstractLostFoundModelSequenceTests {
+
+    /**
+     * Edit part of the first participant.
+     */
+    private SWTBotGefEditPart instanceRoleABot;
+
+    /**
+     * Bounds of the editPart of the firstParticipant.
+     */
+    private Rectangle instanceRoleABounds;
+
+    @Override
+    protected void onSetUpAfterOpeningDesignerPerspective() throws Exception {
+        super.onSetUpAfterOpeningDesignerPerspective();
+
+        editor.reveal(LIFELINE_1);
+
+        // Arrange All
+        arrangeAll();
+        maximizeEditor(editor);
+
+        // InstanceRoles
+        instanceRoleABot = editor.getEditPart(LIFELINE_1);
+        instanceRoleABounds = editor.getBounds(instanceRoleABot);
+    }
+
+    /**
+     * Test create Found message.
+     */
+    public void test_Create_Found_Message_Creation() {
+        Point centerM10ScreenPos = getSequenceMessageScreenCenteredPosition(TENTH_MESSAGE);
+        Point centerM9ScreenPos = getSequenceMessageScreenCenteredPosition(NINETH_MESSAGE);
+
+        // Creation of a message (m11 message)
+        int yM10 = centerM10ScreenPos.y;
+        int yM9 = centerM9ScreenPos.y;
+        Point center = instanceRoleABounds.getCenter();
+        Point newPosition = center.translate(0, (yM9 + yM10) / 2 - center.y);
+        createMessage(InteractionsConstants.FOUND_READ_TOOL_ID, newPosition, newPosition);
+
+        // Validates the position
+        assertMessageVerticalPosition(ELEVENTH_MESSAGE, (yM9 + yM10) / 2);
+
+        // create message with re-ordering (m12 message)
+        newPosition = center.translate(0, (yM9 - 5) - center.y);
+        createMessage(InteractionsConstants.FOUND_READ_TOOL_ID, newPosition, newPosition);
+
+        // Check if there is an error in errorLog
+        if (doesAnErrorOccurs()) {
+            fail("This Found read message creation should be done without error in errorlog.");
+        }
+
+        // Validates the position
+        assertTrue("The m9 message must be moved of few points.",
+                getSequenceMessageScreenCenteredPosition(NINETH_MESSAGE).y < centerM9ScreenPos.y + 20);
+
+    }
+
+    /**
+     * Test move Found Message after its creation.
+     */
+    public void test_Move_Found_Message_Creation() {
+        Point centerM10ScreenPos = getSequenceMessageScreenCenteredPosition(TENTH_MESSAGE);
+        Point centerM9ScreenPos = getSequenceMessageScreenCenteredPosition(NINETH_MESSAGE);
+        Point center = instanceRoleABounds.getCenter();
+
+        // Creation of a message (m11 message)
+        int yM10 = centerM10ScreenPos.y;
+        int yM9 = centerM9ScreenPos.y;
+        int yCenter = center.y;
+        Point newPosition = center.translate(0, (yM9 + yM10) / 2 - yCenter);
+        createMessage(InteractionsConstants.FOUND_READ_TOOL_ID, newPosition, newPosition);
+
+        // compute new position of the created message
+        Point centerM7ScreenPos = getSequenceMessageScreenCenteredPosition(SEVENTH_MESSAGE);
+        int yM7 = centerM7ScreenPos.y;
+        int newMoveVerticalPosition = (yCenter + yM7) / 2;
+
+        // Move m9 message
+        Point centerNewMessageScreenPos = getSequenceMessageScreenCenteredPosition(ELEVENTH_MESSAGE);
+        editor.click(centerNewMessageScreenPos);
+        editor.drag(centerNewMessageScreenPos, centerNewMessageScreenPos.x, newMoveVerticalPosition);
+
+        // Validates the new position
+        assertMessageVerticalPosition(ELEVENTH_MESSAGE, newMoveVerticalPosition);
+
+        // validate that other positions are the same
+        assertMessageVerticalPosition(SEVENTH_MESSAGE, centerM7ScreenPos.y);
+        assertMessageVerticalPosition(TENTH_MESSAGE, centerM10ScreenPos.y);
+
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        instanceRoleABot = null;
+
+        instanceRoleABounds = null;
+
+        super.tearDown();
+    }
+}
diff --git a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/suite/SequenceSwtBotTestSuite.java b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/suite/SequenceSwtBotTestSuite.java
index cd1db700b3..768d07a838 100644
--- a/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/suite/SequenceSwtBotTestSuite.java
+++ b/plugins/org.eclipse.sirius.tests.swtbot/src/org/eclipse/sirius/tests/swtbot/suite/SequenceSwtBotTestSuite.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2010, 2016 THALES GLOBAL SERVICES.
+ * Copyright (c) 2010, 2017 THALES GLOBAL SERVICES.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -10,12 +10,6 @@
  *******************************************************************************/
 package org.eclipse.sirius.tests.swtbot.suite;
 
-import junit.framework.JUnit4TestAdapter;
-import junit.framework.Test;
-import junit.framework.TestCase;
-import junit.framework.TestSuite;
-import junit.textui.TestRunner;
-
 import org.eclipse.sirius.tests.swtbot.Activator;
 import org.eclipse.sirius.tests.swtbot.sequence.ActionDisabledOnExtendedMessagesTest;
 import org.eclipse.sirius.tests.swtbot.sequence.ActionDisabledOnSequenceDiagramTest;
@@ -45,6 +39,7 @@ import org.eclipse.sirius.tests.swtbot.sequence.ExecutionReconnectionTests;
 import org.eclipse.sirius.tests.swtbot.sequence.ExecutionSelectionEditPolicyTests;
 import org.eclipse.sirius.tests.swtbot.sequence.ExecutionTests;
 import org.eclipse.sirius.tests.swtbot.sequence.ExternalModificationsTests;
+import org.eclipse.sirius.tests.swtbot.sequence.FoundLostMessageTests;
 import org.eclipse.sirius.tests.swtbot.sequence.FrameMoveWithExpansionTest;
 import org.eclipse.sirius.tests.swtbot.sequence.FrameReparentTest;
 import org.eclipse.sirius.tests.swtbot.sequence.HeaderSequenceDiagramTests;
@@ -86,6 +81,12 @@ import org.eclipse.sirius.tests.swtbot.sequence.SyncCallMoveTest;
 import org.eclipse.sirius.tests.swtbot.sequence.SyncCallTest;
 import org.eclipse.sirius.tests.unit.common.EnvironmentReportTest;
 
+import junit.framework.JUnit4TestAdapter;
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+import junit.textui.TestRunner;
+
 /**
  * All SWTBot tests on sequence diagram.
  * 
@@ -141,6 +142,7 @@ public class SequenceSwtBotTestSuite extends TestCase {
         suite.addTestSuite(ExecutionMessageReconnectionTests.class);
         suite.addTestSuite(ExecutionLinkedMessageReconnectionTests.class);
         suite.addTestSuite(ExternalModificationsTests.class);
+        suite.addTestSuite(FoundLostMessageTests.class);
     }
 
     /**