Coffee was first discovered in the 9th century in eastern Africa in an area we know today as Ethiopia,kaldi an ethiopian shepherd who discovered this beans by observe his goat were "dancing" after eating berries from a bus, kaldi found that this berries gave him an increased level of energy after he consumed himself. Berries dried in the 13th century in order to maintain the fruit for long distance journey Muslims dried the berries, and consuming this black powder for a more awakened time for prayer.
Coffee arrived in Indonesia in 1696 the Dutch who brought and opened plantation in java during their colonization. In the early days the Dutch colonial government planted Arabica because of a rush plague the Dutch colonial government changed Arabica with liberica Robusta was primarily coffee in central java and in east java are Arabica
Now a days coffee plantation in Indonesia are run by the small farmers or cooperatives many small farmers produce their on coffee brand, they roasted and sell on traditional cafe called "warung kopi"