ImmutableList<File> classpath() {
      ImmutableList.Builder<File> classpathBuilder =
          ImmutableList.<File>builder().addAll(COMMON_CLASSPATH);
      if (packagesOnClasspath.contains(InjectPackage.JAVAX)) {
        classpathBuilder.add(JAVAX_CLASSPATH);
      }
      if (packagesOnClasspath.contains(InjectPackage.JAKARTA)) {
        classpathBuilder.add(JAKARTA_CLASSPATH);
      }
      return classpathBuilder.build();
    }
Config that is used for negative tests, and to update the golden files. Since those files use
{@code javax.inject}, we need a config that specifies that package.
factory/src/test/java/com/google/auto/factory/processor/AutoFactoryProcessorTest.java