(1) Well I tried adding bcel.jar to my ant/lib directory but it made no difference.
What did make a difference was my choice of .class file to load. Instead of my Diagnostic.class
I tried a simpler Version.class and then I received no error, even *without* bcel.jar. So this seems like a data-dependent bug...
Did you make your VERSION be "public static final"? I just tried it (had to download and install BCEL into ANT_HOME/lib myself) with this class:
public class Test {
public static final String VERSION = "version";
}I also tried it with an int:
public static final int VERSION = 123;
with this build file snippet:
<loadproperties srcfile="build/Test.class">
<filterchain>
<classconstants/>
</filterchain>
</loadproperties>
<echo>${VERSION}</echo>(2) As I could successfully execute with my Version.class, how do I then *access* the properties?
I have a constant named VERSION. I tried <echo> with "${VERSION}" and with "${com.cleancode.data.Version.VERSION}" but neither had a value. What are the rules for the name of a property from a class file?
the property name is the constant name, no package prefix is added. Though a slick trick is to use a <prefixlines prefix="constants."/> after <classconstants>.
My guess is your property is not public static final.
Erik
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