Though there are converters for converting CityGML 2.0 data to CityGML 3.0 such as https://github.com/citygml4j[citygml4j], data conversion for ADEs is not yet supported by these converters.
I propose to remove this sentence. First, the reference to citygml4j is wrong. citygml4j is not a converter but a Java library and API that can be used to build a converter. Moreover, it has ADE support. Second, the sentence only reflects the situation when writing the chapter. Software support will change once the spec has been published.
The ADE chapter contains this sentence:
I propose to remove this sentence. First, the reference to citygml4j is wrong. citygml4j is not a converter but a Java library and API that can be used to build a converter. Moreover, it has ADE support. Second, the sentence only reflects the situation when writing the chapter. Software support will change once the spec has been published.