[logback-user] (no subject)

Hi, I got the following error in my logs: 13:26:49.257 [Thread-5] DEBUG c.b.b.c.MyClass - ERROR in ch.qos.logback.core.FileAppender[USER_LOG] - IO failure in appender java.nio.channels.FileLockInterruptionException My config is as follows: <appender name="USER_LOG" class="ch.qos.logback.core.FileAppender"> <file>${MY_LOG_DIR}/MyFile.log</file> <prudent>true</prudent> <encoder> <pattern>%d{HH:mm:ss.SSS} [%thread] %X{COMP} %-5level %logger{36} - %msg%n</pattern> </encoder> </appender> What could be the cause?