Proguard rules are not defined

[centsol]

Describe the bug
Can you please let me know what are the pro-guard rules?

To Reproduce
After applying I am getting following crash logs using retrofit
Feb 23, 2019 08:37 AM:RestCaller:java.lang.NoClassDefFoundError: org.jsoup.c.i$b
at org.jsoup.c.f$a.(Unknown Source:372)
at org.jsoup.c.f.(Unknown Source:19)
at org.jsoup.d.m.b(Unknown Source:32)
at org.jsoup.d.m.a(Unknown Source:42)
at org.jsoup.d.b.a(Unknown Source:56)
at org.jsoup.d.g.a(Unknown Source:100)
at org.jsoup.a.a(Unknown Source:58)
at pl.droidsonroids.jspoon.a.a(Unknown Source:58)
at pl.droidsonroids.a.b.a(Unknown Source:17)
at pl.droidsonroids.a.b.convert(Unknown Source:8)
at retrofit2.ServiceMethod.toResponse(Unknown Source:119)
at retrofit2.OkHttpCall.parseResponse(Unknown Source:218)
at retrofit2.OkHttpCall$1.onResponse(Unknown Source:112)
at okhttp3.x$a.c(Unknown Source:141)
at okhttp3.internal.b.run(Unknown Source:32)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.ExceptionInInitializerError
... 18 more
Caused by: java.lang.IllegalStateException: Could not read resource entities-xhtml.properties. Make sure you copy resources for org.jsoup.c.i
at org.jsoup.c.i.b(Unknown Source:301)
at org.jsoup.c.i.a(Unknown Source:25)
at org.jsoup.c.i$b.(Unknown Source:53)
at org.jsoup.c.i$b.(Unknown Source:34)
... 18 more

[koral--]

@centsol could you paste deobfuscated stacktrace?

entities-xhtml.properties should not be needed in the current version: jhy/jsoup@f3035ca#diff-2ae1d9d6a9f9ee450c8a12116dc76658L39
so probably you are using older version of library.