proguard.proguard - platform/packages/services/Telephony - Git at Google

 -keepparameternames
 -keepattributes Exceptions,InnerClasses,Signature,Deprecated,
                 SourceFile,LineNumberTable,*Annotation*,EnclosingMethod

 -keep public class * {
     public protected *;
 }
	-keepparameternames
	-keepattributes Exceptions,InnerClasses,Signature,Deprecated,
	SourceFile,LineNumberTable,Annotation,EnclosingMethod

	-keep public class * {
	public protected *;
	}