java_heap_stats {
  instance_stats {
    upid: 2
    process {
      name: "proc1"
      uid: 1000
    }
    samples {
      ts: 200000000
      heap_size: 64
      heap_native_size: 0
      reachable_heap_size: 64
      reachable_heap_native_size: 0
      obj_count: 1
      reachable_obj_count: 1
      anon_rss_and_swap_size: 2048
      roots {
        root_type: "ROOT_JAVA_FRAME"
        type_name: "FactoryProducerDelegateImplActor"
        obj_count: 1
      }
    }
  }
}
java_heap_stats {
  instance_stats {
    upid: 3
    process {
      name: "proc2"
      uid: 1000
    }
    samples {
      ts: 1500000000
      heap_size: 64
      heap_native_size: 0
      reachable_heap_size: 64
      reachable_heap_native_size: 0
      obj_count: 1
      reachable_obj_count: 1
      anon_rss_and_swap_size: 3072
      roots {
        root_type: "ROOT_JAVA_FRAME"
        type_name: "FactoryProducerDelegateImplActor"
        obj_count: 1
      }
    }
  }
}