import static com.google.common.util.concurrent.Service.State.FAILED;
import static com.google.common.util.concurrent.Service.State.NEW;
import static com.google.common.util.concurrent.Service.State.RUNNING;
import static com.google.common.util.concurrent.Service.State.STARTING;
import static com.google.common.util.concurrent.Service.State.STOPPING;
import static com.google.common.util.concurrent.Service.State.TERMINATED;

import java.util.Locale;

          "datasource": {
            "type": "prometheus",
            "uid": "${datasource}"
          },
          "editorMode": "code",
          "expr": "sum(irate(istio_requests_total{reporter=~\"$qrep\",destination_service=~\"$service\",response_code!~\"5.*\"}[5m])) / (sum(irate(istio_requests_total{reporter=~\"$qrep\",destination_service=~\"$service\"}[5m])) or on () vector(1))",
          "format": "time_series",
          "intervalFactor": 1,

      startUpCalled++;
      assertEquals(State.STARTING, state());
    }

    @Override
    protected void shutDown() throws Exception {
      assertEquals(1, startUpCalled);
      assertEquals(0, shutDownCalled);
      shutDownCalled++;
      assertEquals(State.STOPPING, state());
    }

    @Override
    protected Executor executor() {
      transitionStates.add(state());
      return directExecutor();
    }

func (s *secretItemBuilder) Destination(dest string) SecretItemBuilder {
	s.dest = dest
	return s
}

// State sets the state of the secret on the agent or sidecar
func (s *secretItemBuilder) State(state string) SecretItemBuilder {
	s.state = state
	return s
}

// TrustDomain sets the trust domain of the secret on the agent or sidecar

    assertEquals(Service.State.RUNNING, service.state());

    exitRun.countDown(); // the service will exit voluntarily
    executionThread.join();

    assertTrue(service.shutDownCalled);
    assertEquals(Service.State.TERMINATED, service.state());

    service.stopAsync().awaitTerminated(); // no-op
    assertEquals(Service.State.TERMINATED, service.state());
    assertTrue(service.shutDownCalled);
  }

import static com.google.common.util.concurrent.Service.State.FAILED;
import static com.google.common.util.concurrent.Service.State.NEW;
import static com.google.common.util.concurrent.Service.State.RUNNING;
import static com.google.common.util.concurrent.Service.State.STARTING;
import static com.google.common.util.concurrent.Service.State.STOPPING;
import static com.google.common.util.concurrent.Service.State.TERMINATED;

import java.util.Locale;

    checkState(state != State.FAILED);
    switch (state) {
      case DONE:
        return false;
      case READY:
        return true;
      default:
    }
    return tryToComputeNext();
  }

  private boolean tryToComputeNext() {
    state = State.FAILED; // temporary pessimism
    next = computeNext();
    if (state != State.DONE) {
      state = State.READY;
      return true;
    }

                if (log.level >= 1)
                    log.println("Invalid state: " + state);
                state = 0;
                thread = null;
            }
        }
    }
    public synchronized void disconnect( boolean hard ) throws IOException {
        IOException ioe = null;

        switch (state) {
            case 0: /* not connected - just return */
                return;

## Build state model

As Gradle executes, it acts on various pieces of the build definition, such as each project in the build.
Gradle tracks the state of each piece and transitions each piece through its lifecycle as the build runs.

A central part of the Gradle architecture is the "build state model", which holds the state for each piece and coordinates state transitions and other mutations. 

        AggregateFutureState<?> state, @CheckForNull Set<Throwable> expect, Set<Throwable> update) {
      synchronized (state) {
        if (state.seenExceptions == expect) {
          state.seenExceptions = update;
        }
      }
    }

    @Override
    int decrementAndGetRemainingCount(AggregateFutureState<?> state) {
      synchronized (state) {
        return --state.remaining;
      }