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Opened by Matija Obreza@mobrezaOwner

Apache Mina logging

Please explore how we can reduce the verbosity of apache mina (FTP). The logs are filling up with:

10:02:50,349 pool-4-thread-19 ERROR o.a.f.i.DefaultFtpHandler:157 - Exception caught, closing session
javax.net.ssl.SSLHandshakeException: SSL handshake failed.
	at org.apache.mina.filter.ssl.SslFilter.messageReceived(SslFilter.java:519)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:542)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:48)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:947)
	at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:109)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:542)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:535)
	at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:703)
	at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:659)
	at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:648)
	at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$600(AbstractPollingIoProcessor.java:68)
	at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1120)
	at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
	at sun.security.ssl.EngineInputRecord.bytesInCompletePacket(EngineInputRecord.java:156)
	at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:868)
	at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:781)
	at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
	at org.apache.mina.filter.ssl.SslHandler.unwrap(SslHandler.java:754)
	at org.apache.mina.filter.ssl.SslHandler.unwrapHandshake(SslHandler.java:689)
	at org.apache.mina.filter.ssl.SslHandler.handshake(SslHandler.java:575)
	at org.apache.mina.filter.ssl.SslHandler.messageReceived(SslHandler.java:360)
	at org.apache.mina.filter.ssl.SslFilter.messageReceived(SslFilter.java:500)
	... 15 more

Can we just log the exception message?