Catch all exceptions caused by BindExceptions

Looks like the actual exception thrown sometimes is
org.jboss.netty.channel.ChannelException: Failed to bind to:
localhost/127.0.0.1:60550, which is not a java.net.BindException.
We should catch these too.

Author: andrewor14

external/flume/src/test/scala/org/apache/spark/streaming/flume/FlumePollingStreamSuite.scala

@@ -35,6 +35,7 @@ import org.apache.spark.streaming.dstream.ReceiverInputDStream
 import org.apache.spark.streaming.util.ManualClock
 import org.apache.spark.streaming.{TestSuiteBase, TestOutputStream, StreamingContext}
 import org.apache.spark.streaming.flume.sink._
+import org.apache.spark.util.Utils
 
 class FlumePollingStreamSuite extends TestSuiteBase {
 
@@ -67,7 +68,7 @@ class FlumePollingStreamSuite extends TestSuiteBase {
         test()
         testPassed = true
       } catch {
-        case e: java.net.BindException =>
+        case e: Exception if Utils.isBindCollision(e) =>
           logWarning("Exception when running flume polling test: " + e)
           attempt += 1
       }