working on preparing journal loggin
Signed-off-by: Stephan Richter <s.richter@srsoftware.de>
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@@ -6,8 +6,8 @@ import java.util.HashSet;
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import java.util.Set;
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public class MessageBus {
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private static MessageBus SINGLETON = new MessageBus();
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private Set<EventListener> listeners = new HashSet<>();
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private static final MessageBus SINGLETON = new MessageBus();
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private final Set<EventListener> listeners = new HashSet<>();
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private MessageBus(){}
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