CLASSPATH errors running unit tests via Eclipse

[Kirk True]

Hi all,

I'm trying to run some of the unit tests within Eclipse. But with a 
fresh checkout of the HDFS source, unit tests that use webapps generate 
errors in Eclipse.

Steps to reproduce:

  1. Get source
        1. cd /tmp
        2. mkdir test
        3. cd test
        4. git clone https://github.com/apache/hadoop-hdfs.git
        5. cd hadoop-hdfs
  2. Set up Eclipse project
        1. Run `ant eclipse`
        2. Run Eclipse with /tmp/test as the workspace
        3. File -> Import...
        4. Import "General" -> "Existing Projects into Workspace",
           click "Next"
        5. Select root directory "/tmp/test", select "hadoop-hdfs" and
           click "Finish"
  3. Navigate to "TestBlockRecovery" test source and select "Run As..."
     "JUnit Test"


I expected it to pass, but instead I get this error:

   java.io.FileNotFoundException: webapps/datanode not found in CLASSPATH
        at
   org.apache.hadoop.http.HttpServer.getWebAppsPath(HttpServer.java:470)
        at org.apache.hadoop.http.HttpServer.<init>(HttpServer.java:186)
        at org.apache.hadoop.http.HttpServer.<init>(HttpServer.java:147)
        at
   
org.apache.hadoop.hdfs.server.datanode.DataNode.startInfoServer(DataNode.java:465)
        at
   
org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1373)
        at
   org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:401)
        at
   
org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.startUp(TestBlockRecovery.java:114)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
   sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
   
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
   
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
        at
   
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
        at
   
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
        at
   org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
        at
   org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
        at
   
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
        at
   
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
        at
   org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at
   
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
        at
   
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
        at
   
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
        at
   
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
        at
   
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
        at
   
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


I'm assuming that it's an issue with the Eclipse project generation, but 
I haven't been able to solve it by manually hacking the .classpath 
Eclipse file.

Any ideas?

Thanks,
Kirk