Ensure no unnecessary class parsing is performed

Currently there is a step in the SBG which parses all JAR dependencies and collects Java interfaces in them in order to be provided for the js parser. Another step after the js parser parses all JARs too. Those can be unified without much effort. Also, other build time generators perform the same JAR parsing. Combining the generators or at least performing the JAR parsing just once could improve the initial build time.

首先跟踪 SBG 的 JAR 解析、js parser 以及其他会解析 JAR 的构建时生成器。比较它们的解析路径，并确定哪些工作可以共享；完成的标准是生成器不再重复不必要的 JAR 解析，并且初始构建时间得到改善。