Exception in thread "main" java.lang.StackOverflowError
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:39)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)
at org.apache.log4j.Category.<init>(Category.java:57)
at org.apache.log4j.Logger.<init>(Logger.java:37)
at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)
at org.apache.log4j.LogManager.getLogger(LogManager.java:45)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:64)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)