Javatest 4.2_b16 (earlier versions as well)

- Create a testsuite (or modify sample testsuite) with custom Interview class.
- Create your own class as following:
public class WrapperFilter extends TestFilter {
    private void TestFilter actualFilter;
    public WrapperFilter(TestFilter actualFilter) {
        this.actualFilter = actualFilter;
    }
    ... implement all necessary TestFilter methods using delegation
}
- Override com.sun.javatest.InterviewParameters.getFilters() in the following way:
{
   TestFilter[] filters = super.getFilters();
   WrapperFilter[] wrappedFilters = new WrapperFilter[filters.length()];
   //do a simple for-each cycle to wrap original filters and add them to array
   return wrappedFilters;
}

Technically - this is possible solution and this will be compiled and executed well. You may try to run tests with such implementation of the interview. Everything is fine.

However, then try following
- Execute a batch mode command to generate any kind of report:
>java -jar javatest.jar -workdir <...> -writeReport -filter currentConfig -type xml /usr/tmp/test_rep_batch

You'll get
java.lang.ArrayStoreException: com.sun.javatest.InitialUrlFilter
        at com.sun.javatest.util.DynamicArray.append(DynamicArray.java:66)
        at com.sun.javatest.util.DynamicArray.append(DynamicArray.java:91)
        at com.sun.javatest.report.ReportManager$WriteReportCommand.run(ReportMa
nager.java:204)
        at com.sun.javatest.tool.CommandContext.runCommands(CommandContext.java:
175)
        at com.sun.javatest.tool.Main.run(Main.java:387)
        at com.sun.javatest.tool.Main.main0(Main.java:141)
        at com.sun.javatest.tool.Main.main(Main.java:121)