cactus运行时有异常提示，请楼上指教一下。

yanglin2000168

org.apache.cactus.util.ChainedRuntimeException: Failed to get the test results at [http://localhost:6060/ch7/ServletRedirector]
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest_aroundBody0(DefaultHttpClient.java:92)
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest_aroundBody1$advice(DefaultHttpClient.java:288)
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest(DefaultHttpClient.java)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runWebTest(HttpProtocolHandler.java:159)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest_aroundBody0(HttpProtocolHandler.java:80)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest_aroundBody1$advice(HttpProtocolHandler.java:288)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest(HttpProtocolHandler.java)
        at org.apache.cactus.internal.client.ClientTestCaseCaller.runTest(ClientTestCaseCaller.java:144)
        at org.apache.cactus.internal.AbstractCactusTestCase.runBareClient(AbstractCactusTestCase.java:215)
        at org.apache.cactus.internal.AbstractCactusTestCase.runBare(AbstractCactusTestCase.java:133)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)
org.apache.cactus.internal.client.ParsingException: Not a valid response [404 /ch7/ServletRedirector]
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.callGetResult(DefaultHttpClient.java:211)
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest_aroundBody0(DefaultHttpClient.java:87)
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest_aroundBody1$advice(DefaultHttpClient.java:288)
        at org.apache.cactus.internal.client.connector.http.DefaultHttpClient.doTest(DefaultHttpClient.java)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runWebTest(HttpProtocolHandler.java:159)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest_aroundBody0(HttpProtocolHandler.java:80)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest_aroundBody1$advice(HttpProtocolHandler.java:288)
        at org.apache.cactus.internal.client.connector.http.HttpProtocolHandler.runTest(HttpProtocolHandler.java)
        at org.apache.cactus.internal.client.ClientTestCaseCaller.runTest(ClientTestCaseCaller.java:144)
        at org.apache.cactus.internal.AbstractCactusTestCase.runBareClient(AbstractCactusTestCase.java:215)
        at org.apache.cactus.internal.AbstractCactusTestCase.runBare(AbstractCactusTestCase.java:133)
        at junit.framework.TestResult$1.protect(TestResult.java:106)
        at junit.framework.TestResult.runProtected(TestResult.java:124)
        at junit.framework.TestResult.run(TestResult.java:109)
        at junit.framework.TestCase.run(TestCase.java:118)
        at junit.framework.TestSuite.runTest(TestSuite.java:208)
        at junit.framework.TestSuite.run(TestSuite.java:203)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)