[ 
http://issues.apache.org/jira/browse/XMLBEANS-180?page=comments#action_12316261 
] 

Rob Moore commented on XMLBEANS-180:
------------------------------------

After some more research, it appears that this issue may be solved in the 2.0 
release (I was using a beta) insofar as I should be able to build jars use for 
1.4 JDKs.

Looking at the source for xxx version 2.0 final 
org.apache.xmlbeans.impl.tool.XMLBean, I noticed at around line 255:

 if (source != null)

                {

                    javac.setSource(source);

                    javac.setTarget(source);

                }

                else

                {

                    javac.setSource("1.4");

                    javac.setTarget("1.4");

                }

Source seems to be an undocumented attribute that appears to have the same 
purpose as a combination of source and target in javac. However, looking at the 
code comments, the attribute seems to be under review:

  //REVIEW this allows people to deal with the case where they drag in

  //more files for compilation than they should.  not sure if this is

  //a good thing or not

  private String source = null;

  public void setSource(String s) { source = s; }

> Add 'javatarget' attribute to ant task so that it behaves like ant javac task
> -----------------------------------------------------------------------------
>
>          Key: XMLBEANS-180
>          URL: http://issues.apache.org/jira/browse/XMLBEANS-180
>      Project: XMLBeans
>         Type: Improvement
>   Components: Tools
>     Versions: Version 2
>     Reporter: Rob Moore
>     Priority: Minor
>      Fix For: Version 2

>
> I am on a machine running the 1.5 JDK. However, I must generate xmlbean jar 
> files that are compatible with 1.4 JDKs. I expected there to be an attribute 
> similar to that found in the ant javac task that allows one to generate class 
> files for specific VM version, like so:
>   <javac srcdir="${src}"
>          destdir="${build}"
>          source="1.4"
>          target="1.4"
>   />
> I thought that setting the javasource attribute might have this effect, but 
> it does not. As a result of not having this feature, I am unable to generate 
> compatible jars from within ant using my current build process which makes 
> use of the above-mentioned javac attribute.

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