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From "Niels Basjes (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7305) Eclipse project files are incomplete
Date Thu, 14 Jul 2011 22:20:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13065567#comment-13065567
] 

Niels Basjes commented on HADOOP-7305:
--------------------------------------

The sad truth is that java.home is set by ant to the jre instead of the value of the environment
variable JAVA_HOME.
Simple demonstration:
{code} 
[niels@hacker ~/src/javahome]$ echo $JAVA_HOME 
/usr/java/default/
[niels@hacker ~/src/javahome]$ ls -laF /usr/java/default
lrwxrwxrwx. 1 root root 16 Jul 11  2010 /usr/java/default -> /usr/java/latest/
[niels@hacker ~/src/javahome]$ ls -laF /usr/java/latest
lrwxrwxrwx. 1 root root 21 Jul 11  2010 /usr/java/latest -> /usr/java/jdk1.6.0_21/

[niels@hacker ~/src/javahome]$ cat build.xml 
<?xml version="1.0"?>
<project>
  <target name="javahome">
    <property environment="env"/>
    <echo>${env.JAVA_HOME}</echo>
    <echo>${java.home}</echo>
  </target>
</project>

[niels@hacker ~/src/javahome]$ ant javahome
Buildfile: /home/niels/src/javahome/build.xml

javahome:
     [echo] /usr/java/default/
     [echo] /usr/java/jdk1.6.0_21/jre

BUILD SUCCESSFUL
Total time: 1 second
{code} 

> Eclipse project files are incomplete
> ------------------------------------
>
>                 Key: HADOOP-7305
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7305
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>            Reporter: Niels Basjes
>            Assignee: Niels Basjes
>            Priority: Minor
>             Fix For: 0.22.0
>
>         Attachments: HADOOP-7305-2011-05-19.patch, HADOOP-7305-2011-05-30.patch, HADOOP-7305-2011-06-09.patch,
HADOOP-7305-2011-07-01.patch
>
>
> After a fresh checkout of hadoop-common I do 'ant compile eclipse'.
> I open eclipse, set ANT_HOME and build the project. 
> At that point the following error appears:
> {quote}
> The type com.sun.javadoc.RootDoc cannot be resolved. It is indirectly referenced from
required .class files	ExcludePrivateAnnotationsJDiffDoclet.java	/common/src/java/org/apache/hadoop/classification/tools
line 1	Java Problem
> {quote}
> The solution is to add the "tools.jar" from the JDK to the buildpath/classpath.
> This should be fixed in the build.xml.

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