better exception logging

pdb-ui/src/main/resources/log4j2.properties

@@ -0,0 +1,16 @@
+name = PropertiesConfig
+appenders = console
+ 
+ 
+appender.console.type = Console
+appender.console.name = STDOUT
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss.SSS} [%-5level] [%t] %c{1} - %msg%n
+ 
+ 
+ 
+rootLogger.level = info
+rootLogger.appenderRef.stdout.ref = STDOUT
+
+## log all exceptions thrown by controllers. Otherwise only 500 will be logged.
+#log4j.logger.org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver=debug