8f29850cca
If disconnected bluetooth devices didn't exist in recent devices, the index will return -1. Our condition didn't check this situation, the IndexOutOfBoundsException will throw when this case happens. This CL adds the condition to check whether index is over than or equal 0 to fix IndexOutOfBoundsException. Bug: 173059077 Test: make -j42 RunSettingsRoboTests Change-Id: Id93f4cb6bded83540045c5e8c21c6f6122a39fed