Exception: ERROR SparkContext - Error initializing local SparkContext. java.net.BindException

I'm trying to write a test for spark application, but I get this Exception when trying to run the next test

     class BasicIT {

      val sparkConf: SparkConf = new SparkConf().setAppName("basic.phase.it").setMaster("local[1]")
      var context:SparkContext = new SparkContext(sparkConf)
    @Test
    def myTest(): Unit = {
      print("test")
     }
    }

fails with this exception:

2016-07-24 21:04:39,956 [main,95] ERROR SparkContext - Error initializing SparkContext.
java.net.BindException: Can't assign requested address: Service 'sparkDriver' failed after 16 retries!
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:433)
    at sun.nio.ch.Net.bind(Net.java:425)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:125)
    at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:485)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1089)
    at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:430)
    at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:415)
    at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:903)
    at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:198)
    at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:348)
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
    at java.lang.Thread.run(Thread.java:745)

java.net.BindException: Can't assign requested address: Service 'sparkDriver' failed after 16 retries!

currently working with IntelliJ on OS x Yosemite.

what am I doing wrong? the same code used to work ..