}

  @J2ktIncompatible
  @GwtIncompatible // lazyStackTrace(Throwable)
  public void testLazyStackTrace() {
    Exception e = new Exception();
    StackTraceElement[] originalStackTrace = e.getStackTrace();

    assertThat(lazyStackTrace(e)).containsExactly((Object[]) originalStackTrace).inOrder();

    assertThrows(UnsupportedOperationException.class, () -> lazyStackTrace(e).set(0, null));

  }

  @J2ktIncompatible
  @GwtIncompatible // lazyStackTrace(Throwable)
  public void testLazyStackTrace() {
    Exception e = new Exception();
    StackTraceElement[] originalStackTrace = e.getStackTrace();

    assertThat(lazyStackTrace(e)).containsExactly((Object[]) originalStackTrace).inOrder();

    assertThrows(UnsupportedOperationException.class, () -> lazyStackTrace(e).set(0, null));

import static com.google.common.base.Throwables.lazyStackTrace;
import static java.util.Arrays.asList;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import com.google.caliper.api.SkipThisScenarioException;
import java.util.List;

/**
 * Quick and dirty benchmark of {@link Throwables#lazyStackTrace(Throwable)}. We benchmark a "caller

import static com.google.common.base.Throwables.lazyStackTrace;
import static java.util.Arrays.asList;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import com.google.caliper.api.SkipThisScenarioException;
import java.util.List;

/**
 * Quick and dirty benchmark of {@link Throwables#lazyStackTrace(Throwable)}. We benchmark a "caller

   * {@code getStackTrace} in one main way: The {@code lazyStackTrace} call itself returns quickly
   * by delaying the per-stack-frame work until each element is accessed. Roughly speaking:
   *
   * <ul>
   *   <li>{@code getStackTrace} takes {@code stackSize} time to return but then negligible time to
   *       retrieve each element of the returned list.