title: CXF cannot set ExceptionHandler for DefaultConnectingIOReactor
body: <p>I use cxf with default clients for my async http requests. In some cases, connectingIOReactor gets some RuntimeException and breaks the reactor.</p>
  <pre><code>org.apache.http.nio.reactor.IOReactorException: I/O dispatch worker terminated abnormally
      at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:359)
      at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221)
      at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
      at java.lang.Thread.run(Thread.java:748)
  Caused by: java.lang.RuntimeException: HostnameVerifier, socket reset for TTL
              2 lines skipped for [org.apache.cxf]
      at org.apache.http.nio.conn.ssl.SSLIOSessionStrategy$1.verify(SSLIOSessionStrategy.java:188)
      at org.apache.http.nio.reactor.ssl.SSLIOSession.doHandshake(SSLIOSession.java:371)
      at org.apache.http.nio.reactor.ssl.SSLIOSession.isAppInputReady(SSLIOSession.java:541)
      at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:120)
      at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162)
      at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337)
      at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
      at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
      at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
      at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591)
      ... 1 more
  </code></pre>
  <p>Whenever IOReactor throws exception, I always get message <code>Request cannot be executed; I/O reactor status: STOPPED</code>. I cannot send requests again till application is restarted.</p>
  <p>I solved my problem by copying AsyncHTTPConduitFactory and set exceptionHandler for ioreactor manuelly. However, I couldn't find any way to set this exception handler via properties or without copying.</p>
  <p>Is there any way to set exceptionHandler parameterized way?</p>