solution: connects to remote dshackle

src/main/resources/log4j2.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+
+    <Properties>
+        <Property name="dfltPattern">%d{HH:mm:ss.SSS} [%-20t] %-5level %24.24c{1} | %msg%n</Property>
+    </Properties>
+
+    <Appenders>
+        <Console name="STDOUT" target="SYSTEM_OUT">
+            <PatternLayout pattern="${dfltPattern}"/>
+            <Filters>
+                <ThresholdFilter level="WARN"   onMatch="DENY" onMismatch="ACCEPT" />
+            </Filters>
+        </Console>
+        <Console name="STDERR" target="SYSTEM_ERR">
+            <PatternLayout pattern="${dfltPattern}" />
+        </Console>
+    </Appenders>
+
+    <Loggers>
+        <Logger name="io.emeraldpay" level="debug" additivity="false">
+            <AppenderRef ref="STDOUT"/>
+            <AppenderRef ref="STDERR" level="warn"/>
+        </Logger>
+
+        <Root level="warn" additivity="false">
+            <AppenderRef ref="STDOUT"/>
+            <AppenderRef ref="STDERR" level="warn"/>
+        </Root>
+    </Loggers>
+
+</Configuration>