Question

What were kalangs of Java

Answer 1

the provision dutch forest laws in java restricted villagers acces to forest
wood could only be cut for specified purpose
like making river boats or constructing houses

Answer 2

$\huge\underline\underline\mathbb{ANSWER}$

$\huge\underline\bf\blue{Kalangs\:of\:Java}$

  Te Kalangs of java were a community of skilled forest cutters and shifting cultivators. They were so valuable that in 1755 when the Mataram kingdom of Java split, the 6,000 Kalang families were equally divided between the two kingdoms.Without their expertise, it would have been difficult to harvest teak and for the kings to build their palaces. When the dutch began to gain control the forests in the eighteenth century, they tried to make the Kalangs work under them.

Hope it's helpful...