The command turned out to be 14,500+ characters. When I ran it separately in a .bat file, it terminated very quickly. There were only 658 lines of output, ending with:
[Loaded java.text.Format$Field from shared objects file] [Loaded java.text.MessageFormat$Field from shared objects file] Could not connect to: : 49251 java.net.ConnectException: Connection refused: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(Unknown Source) at java.net.PlainSocketImpl.connectToAddress(Unknown Source) at java.net.PlainSocketImpl.connect(Unknown Source) at java.net.SocksSocketImpl.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at java.net.Socket.connect(Unknown Source) at java.net.Socket.(Unknown Source) at java.net.Socket.(Unknown Source) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.connect(RemoteTestRunner.java:560) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:377) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) [Loaded java.lang.Shutdown from shared objects file] [Loaded java.lang.Shutdown$Lock from shared objects file]