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java.lang.IllegalStateException: Detected both log4j-over-slf4j.jar AND bound slf4j-log4j12.jar on the class path, preempting StackOverflowError. See also http://www.slf4j.org/codes.html#log4jDelegationLoop for more details.	at org.slf4j.impl.Log4jLoggerFactory.(Log4jLoggerFactory.java:54)	at org.slf4j.impl.StaticLoggerBinder.(StaticLoggerBinder.java:72)	at org.slf4j.impl.StaticLoggerBinder.(StaticLoggerBinder.java:45)	at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)	at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)	at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)	at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:155)	at org.apache.commons.logging.impl.SLF4JLogFactory.getInstance(SLF4JLogFactory.java:132)	at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:645)	at org.springframework.boot.SpringApplication.(SpringApplication.java:189)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)	at org.springframework.boot.cli.app.SpringApplicationLauncher.launch(SpringApplicationLauncher.java:65)	at org.springframework.boot.cli.command.run.SpringApplicationRunner$RunThread.run(SpringApplicationRunner.java:169)