Ant shortcut for specifying source/version in several different javac tasks

Question

When using ant, is there a way to specify a set of attribute/value pairs that can be passed to different tasks as a single item/variable?

I have an ant build file that includes several different javac tasks. All have the same values for several attributes (source, version, bootclasspath, debug, etc.)

I know that I can set a variable for each attribute; but, is there a way I can refer to the entire group of attributes so I can do something like this

<javac ${standard_attributes} ...>

instead of

<javac debug="on" includeantruntime="false" source="${java_version}" target="${java_version}" bootclasspath="${bcp}" ...

in every javac task?

Answer 1

Use presetdef

<presetdef name="standard-javac"> <javac debug="on" includeantruntime="false" source="${java_version}" target="${java_version}" bootclasspath="${bcp}" ... </javac> </presetdef>

and then use standard-javac as a task in all places where you used to put javac .