Thread Count Summary

provides thread state wise summary, also you can see thread stack wise grouped stacks by clicking on show stacks

Thread Group Summary

provides thread group wise summary, also you can see thread stack wise grouped stacks by clicking on thread group

Identical Stacks

shows thread count with thread state for similar stacks

Lengthy Stacks

shows lengthy stacks, these type of stacks can result in StackOverflowError

Deadlocks

shows deadlock if found by java and its stack traces

Dependency Graph

see how dependencies are between thread , which threads are waiting for which