Avoid Null Pointer Exception when GeneXus connection Pool checks if a connection must be recycled.

Issue: 200842

(cherry picked from commit 5b69850)

Author: iroqueta

java/src/main/java/com/genexus/db/driver/GXConnection.java

@@ -82,7 +82,7 @@ public final class GXConnection extends AbstractGXConnection implements Connecti
 
 	//JMX Properties
 	int numberRequest = 0;
-	java.util.Date timeLastRequest;
+	java.util.Date timeLastRequest = new java.util.Date();
 	String sentenceLastRequest;
 	String lastObjectExecuted;
 	boolean finishExecute = true;