eclipse-plugin - 为什么 Infinitest 不断给我 SocketExceptions，我该怎么办？

Question

我在 Eclipse Neon 中运行 Infinitest（版本号如下）。除了它不会运行并且在 Infinitest 控制台中，我一遍又一遍地收到这条消息：

Error occurred during test run
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:90)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:380)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:236)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:218)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
    at java.net.Socket.connect(Socket.java:666)
    at java.net.Socket.connect(Socket.java:606)
    at java.net.Socket.<init>(Socket.java:469)
    at java.net.Socket.<init>(Socket.java:239)
    at org.infinitest.testrunner.TestRunnerProcess.main(TestRunnerProcess.java:79)

有谁知道这可能是什么原因造成的？

面向 Web 开发人员的 Eclipse Java EE IDE。版本：Neon.3 Release (4.6.3) 内部版本号：20170314-1500

无限测试 5.2.0

编辑：我切换了项目并得到了这个：

Error occurred during test run
java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.connect0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:90)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:380)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:236)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:218)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
    at java.net.Socket.connect(Socket.java:666)
    at java.net.Socket.connect(Socket.java:606)
    at java.net.Socket.<init>(Socket.java:469)
    at java.net.Socket.<init>(Socket.java:239)
    at org.infinitest.testrunner.TestRunnerProcess.main(TestRunnerProcess.java:79)

类似，但不一样。我添加了它，因为它可能会有所帮助。