Added quick test class and log conf

src/test/java/org/gcube/event/publisher/HTTPEventSenderTest.java

@@ -0,0 +1,19 @@
+package org.gcube.event.publisher;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+
+public class HTTPEventSenderTest {
+
+    public HTTPEventSenderTest() {
+    }
+
+    public static void main(String[] args) throws MalformedURLException {
+//        HTTPEventSender sender = new HTTPEventSender(null, "lr62_portal", "28726d01-9f24-4ef4-a057-3d208d96aaa0",
+//                new URL("https://nubis2.int.d4science.net/auth/realms/d4science/protocol/openid-connect/token"));
+        new Thread(new HTTPEventSender(null, null, null, null).new HTTPost(new URL("https://nubis1.int.d4science.net/api/workflow/startup"),
+                "{\"sender\":\"gcube\",\"name\":\"startup\",\"ids\":\"20154\",\"type\":\"portal\",\"uuid\":\"474be056-365f-4b2c-9519-b9614299b09a\",\"timestamp\":\"2020-06-25T13:08:10.673Z\"}"))
+                        .start();
+    }
+
+}

src/test/resources/log4j.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+<log4j:configuration
+	xmlns="http://jakarta.apache.org/log4j/"
+	xmlns:log4j="http://jakarta.apache.org/log4j/">
+
+	<appender name="console"
+		class="org.apache.log4j.ConsoleAppender">
+		<layout class="org.apache.log4j.PatternLayout">
+			<param name="ConversionPattern"
+				value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n" />
+		</layout>
+	</appender>
+	<logger name="org.gcube" additivity="false">
+		<level value="TRACE" />
+		<appender-ref ref="console" />
+	</logger>
+	<logger name="org.jboss" additivity="false">
+		<level value="INFO" />
+		<appender-ref ref="console" />
+	</logger>
+	<root>
+		<level value="TRACE" />
+		<appender-ref ref="console" />
+	</root>
+
+</log4j:configuration>