Unable to generate signed APK when proguard is enabled

[zfc0812]

Thanks for this great SQlite2XL library. However, this library is causing signed APK unable to be generated when proguard is enable. Here are some lines of warning:

Warning:org.apache.poi.hssf.usermodel.DummyGraphics2d: can't find superclass or interface java.awt.Graphics2D
Warning:org.apache.poi.hssf.usermodel.EscherGraphics: can't find superclass or interface java.awt.Graphics
Warning:org.apache.poi.hssf.usermodel.EscherGraphics2d: can't find superclass or interface java.awt.Graphics2D

I tried to add -keep class java.awt.** { *; } to my proguard but this is still not working. How to solve this problem?

[androidmads]

Add the following code in proguard
-keep public class org.apache.poi.** {*;}
Let me know if you find any issues further

[zfc0812]

This is not working. I solved it by adding:
-dontwarn org.apache.poi.**

[androidmads]

Thanks bro.

[lokeshsunhare]

use this code in proguard-rule.pro
-dontwarn java.awt.**