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Subject: [testing] Type <x> already defined error in Harmony6
To: dev@harmony.apache.org
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From: Guillermo Cabrera <gcabrer@us.ibm.com>
Date: Wed, 13 Oct 2010 16:05:23 -0500
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Hello:

I have successfully built Harmony 6 (rev. 1022139) on a SUSE Linux
Enterprise Server 11 using gcc version 4.3.2. I am currently trying to
build the Apache Hadoop component (v. 0.21.0) using Harmony; after some=

modifications I am still getting some errors stating that "The type <x>=
 is
already defined" where x is the name of a class. I have tested this usi=
ng
SUN and IBM JDK's and have had no issues. I wanted to know if this is a=

known issue as I could not find anything related in Apache JIRA.

Following, are a series of errors and fixes (provided by Charles Li), w=
hile
trying to build the Apache Hadoop common subproject:

BUILD FAILED
/home/harmony/Hadoop-Versions/hadoop-0.21.0/common/build.xml:741: The
following error occurred while executing this line:
/home/harmony/Hadoop-Versions/hadoop-0.21.0/common/build.xml:324: Unabl=
e to
find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.

*Resolution: Added tools.jar from $HARMONY_HOME/hdk/jdk/lib to
$HARMONY_HOME/hdk/jdk/jre/lib/boot
*Resolution: Added entry of tools.jar into bootclasspath.properties in
$HARMONY_HOME/hdk/jdk/jre/lib/boot

4. ERROR
in /home/harmony/Hadoop-Versions/hadoop-0.21.0/common/src/java/org/apac=
he/hadoop/classification/tools/ExcludePrivateAnnotationsJDiffDoclet.jav=
a
 (at line 20)
        import com.sun.javadoc.DocErrorReporter;
               ^^^^^^^^^^^^^^^
The import com.sun.javadoc cannot be resolved

*Resolution: Added a jar file (sun-javadoc.jar) to
$HARMONY_HOME/hdk/jdk/jre/lib/boot containing all javadoc related class=
es
*Resolution: Added entry of sun-javadoc.jar into bootclasspath.properti=
es
in  $HARMONY_HOME/hdk/jdk/jre/lib/boot

1. ERROR
in /home/harmony/Hadoop-Versions/hadoop-0.21.0/common/src/java/org/apac=
he/hadoop/classification/tools/package-info.java
 (at line 1)
        /*
        ^
The type package-info is already defined

It is worth mentioning that the Hadoop common project has 12
package-info.java files but under different directories/packages.

Thanks,
Guillermo=

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