ASN1C decoders now default to using the XmlPull API to parse XML. The kXML implementation of this API is provided with ASN1C in the java/xmlpull folder and is a standard API on Android. You may alternatively use -stax on the ASN1C command line to use the StAX API. The StAX API is a standard part of Java SE 1.6+, and is available for Java ME under JSR-280. A final alternative, for the time being, is to specify -sax on the ASN1C command line to use the SAX API, which was previously the only parser API supported by ASN1C.