fluent / fluent/fluent-logger-java
NullPointerException when the Fluentd server is down
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Descrizione
When We try to use the Fluentd java logger it throws the fellowing NullPointerException when the Fluentd server is down:
`An exception occurred processing Appender fluentd java.lang.NullPointerException
at org.fluentd.logger.sender.RawSocketSender.flushBuffer(RawSocketSender.java:158)
at org.fluentd.logger.sender.RawSocketSender.send(RawSocketSender.java:168)
at org.fluentd.logger.sender.RawSocketSender.emit(RawSocketSender.java:149)
at org.fluentd.logger.sender.RawSocketSender.emit(RawSocketSender.java:131)
at org.fluentd.logger.sender.RawSocketSender.emit(RawSocketSender.java:126)
at org.fluentd.logger.FluentLogger.log(FluentLogger.java:101)
at org.fluentd.logger.FluentLogger.log(FluentLogger.java:86)`
The source of the problem is that when the Fluentd server is down the socket in the RawSocketSender object is null so the call to the method RawSocketSender.flushBuffer#Line:152 throws the null pointer exception when executing the fellowing instruction (RawSocketSender.flushBuffer#Line:158):
`LOG.error("Cannot send logs to " + socket.getInetAddress().toString());`
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