1300 2016-04-06 17:02:07 +0200 AndroidVersion doesn't work if android.os.Build is in the classpath 2019-03-26 22:13:16 +0100 1 1 3 JogAmp Gluegen core 2.4.0 All all RESOLVED FIXED P4 normal --- 0 diegoperez sgothel gouessej DEFECT f24a8b675a0b3d7e73870c46239792a31cf81491 --- oldest_to_newest 5585 0 diegoperez 2016-04-06 17:02:07 +0200 Sometimes android.os.Build might be in the classpath even if the system is not Android. This will cause the Android detection to fail. The recommended way to detect when an app is running on Android is using the "java.vm.name" system property and checking if the value is equals to "Dalvik". 5593 1 gouessej 2016-04-12 10:27:37 +0200 Hi Does it work when Dalvik VM isn't used (i.e when Android Runtime is used instead)? How does the detection fail? Please can you be more accurate? Can you post a stack trace? 5642 2 diegoperez 2016-06-09 12:37:20 +0200 Yes, "Dalvik" will be returned even when using ART. The detection fails because android.os.Build might be sometimes in the classpath even if the system is not Android. In those cases, the library will incorrectly assume that is running in Android when it's not. The PR (https://github.com/sgothel/gluegen/pull/33/files) updates the detection to use the "java.vm.name" property. 6097 3 sgothel 2019-03-26 22:13:16 +0100 Thank you Diego, merged.