Irreproducible error: Class had used a different * during pre-verification
问题 I am using ProGuard to obfuscate and shrink my app and everything seems to work fine for me and 99% of my users but once in a while I get a report from a user who isn't able to run my app at all. It crashes with the following pattern: 01-05 13:20:57.273 W/dalvikvm(22002): Class resolved by unexpected DEX: MyClass;(0x418d1200):0x1d3ef00 ref [Lorg/apache/commons/lang3/time/FastDateFormat;] Lorg/apache/commons/lang3/time/FastDateFormat;(0x418d1200):0x1d5ebf8 01-05 13:20:57.273 W/dalvikvm(22002):