Thread 1:
    at
java.util.logging.LogManager.drainLoggerRefQueueBounded(LogManager.java:816)
       - waiting to lock <0x1b260998> (a java.util.logging.LogManager)
       at java.util.logging.LogManager.addLogger(LogManager.java:852)
       at java.util.logging.LogManager.demandLogger(LogManager.java:398)
       at
java.util.logging.LogManager$LoggerContext.demandLogger(LogManager.java:478)
       at
java.util.logging.LogManager$LoggerContext.processParentHandlers(LogManager.java:604)
       at
java.util.logging.LogManager$LoggerContext.addLocalLogger(LogManager.java:540)
       - locked <0x1b266518> (a java.util.logging.LogManager$LoggerContext)
       at java.util.logging.LogManager.addLogger(LogManager.java:854)
       at java.util.logging.LogManager.demandLogger(LogManager.java:398)
       at java.util.logging.Logger.demandLogger(Logger.java:352)
       at java.util.logging.Logger.getLogger(Logger.java:399)

Thread 2:
at
java.util.logging.LogManager$LoggerContext.findLogger(LogManager.java:482)
       - waiting to lock <0x1b266518> (a
java.util.logging.LogManager$LoggerContext)
       at
java.util.logging.LogManager.setLevelsOnExistingLoggers(LogManager.java:1362)
       - locked <0x1b260998> (a java.util.logging.LogManager)
       at
java.util.logging.LogManager.readConfiguration(LogManager.java:1121)