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diff --git a/event-asynchronous/etc/event-asynchronous.ucls b/event-asynchronous/etc/event-asynchronous.ucls
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+++ b/event-asynchronous/etc/event-asynchronous.ucls
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+<?xml version="1.0" encoding="UTF-8"?>
+<class-diagram version="1.2.2" icons="true" always-add-relationships="false" generalizations="true" realizations="true" 
+  associations="true" dependencies="false" nesting-relationships="true" router="FAN">  
+  <interface id="1" language="java" name="com.iluwatar.event.asynchronous.IEvent" project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/IEvent.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="117" width="151" x="42" y="15"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </interface>  
+  <interface id="2" language="java" name="com.iluwatar.event.asynchronous.ThreadCompleteListener" 
+    project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/ThreadCompleteListener.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="-1" width="-1" x="326" y="79"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </interface>  
+  <class id="3" language="java" name="com.iluwatar.event.asynchronous.App" project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/App.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="-1" width="-1" x="554" y="119"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </class>  
+  <class id="4" language="java" name="com.iluwatar.event.asynchronous.EventAsynchronousTest" 
+    project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/test/java/com/iluwatar/event/asynchronous/EventAsynchronousTest.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="207" width="234" x="669" y="16"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </class>  
+  <class id="5" language="java" name="com.iluwatar.event.asynchronous.Event" project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/Event.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="-1" width="-1" x="141" y="441"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </class>  
+  <class id="6" language="java" name="com.iluwatar.event.asynchronous.EventManager" project="java-design-patterns" 
+    file="/java-design-patterns/event-asynchronous/src/main/java/com/iluwatar/event/asynchronous/EventManager.java" 
+    binary="false" corner="BOTTOM_RIGHT">    
+    <position height="-1" width="-1" x="431" y="439"/>    
+    <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+      sort-features="false" accessors="true" visibility="true">      
+      <attributes public="true" package="true" protected="true" private="true" static="true"/>      
+      <operations public="true" package="true" protected="true" private="true" static="true"/>    
+    </display>  
+  </class>  
+  <association id="7">    
+    <end type="SOURCE" refId="5" navigable="false">      
+      <attribute id="8" name="eventListener"/>      
+      <multiplicity id="9" minimum="0" maximum="1"/>    
+    </end>    
+    <end type="TARGET" refId="2" navigable="true"/>    
+    <display labels="true" multiplicity="true"/>  
+  </association>  
+  <realization id="10">    
+    <end type="SOURCE" refId="5"/>    
+    <end type="TARGET" refId="1"/>  
+  </realization>  
+  <association id="11">    
+    <end type="SOURCE" refId="4" navigable="false">      
+      <attribute id="12" name="app"/>      
+      <multiplicity id="13" minimum="0" maximum="1"/>    
+    </end>    
+    <end type="TARGET" refId="3" navigable="true"/>    
+    <display labels="true" multiplicity="true"/>  
+  </association>  
+  <association id="14">    
+    <end type="SOURCE" refId="6" navigable="false">      
+      <attribute id="15" name="eventPool"/>      
+      <multiplicity id="16" minimum="0" maximum="2147483647"/>    
+    </end>    
+    <end type="TARGET" refId="5" navigable="true"/>    
+    <display labels="true" multiplicity="true"/>  
+  </association>  
+  <realization id="17">    
+    <end type="SOURCE" refId="6"/>    
+    <end type="TARGET" refId="2"/>  
+  </realization>  
+  <classifier-display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" 
+    sort-features="false" accessors="true" visibility="true">    
+    <attributes public="true" package="true" protected="true" private="true" static="true"/>    
+    <operations public="true" package="true" protected="true" private="true" static="true"/>  
+  </classifier-display>  
+  <association-display labels="true" multiplicity="true"/>
+</class-diagram>
\ No newline at end of file