// But trying to read data should cause NullPointerException
        byte[] buffer = new byte[10];
        assertThrows(NullPointerException.class, () -> nullBufferResponse.readDataWireFormat(buffer, 0, 5));
    }

    @Test
    void testReadDataWireFormatWithNegativeLength() {
        byte[] buffer = new byte[100];
        // Negative length should cause ArrayIndexOutOfBoundsException from System.arraycopy

    /**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity
     * {@link SettingsProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link SettingsBuildingException}.
     *
     * @return The problems that were encountered during the settings building, can be empty but never {@code null}.
     */

    ExecutionException expected =
        assertThrows(ExecutionException.class, () -> getDone(chainedFuture));
    NullPointerException cause = (NullPointerException) expected.getCause();
    assertThat(cause)
        .hasMessageThat()
        .contains(
            "AsyncFunction.apply returned null instead of a Future. "
                + "Did you mean to return immediateFuture(null)?");

    ExecutionException expected =
        assertThrows(ExecutionException.class, () -> getDone(chainedFuture));
    NullPointerException cause = (NullPointerException) expected.getCause();
    assertThat(cause)
        .hasMessageThat()
        .contains(
            "AsyncFunction.apply returned null instead of a Future. "
                + "Did you mean to return immediateFuture(null)?");

     *
     * @param problems The problems that cause this exception, may be {@code null}.
     */
    public SettingsBuildingException(List<SettingsProblem> problems) {
        super(toMessage(problems));

        this.problems = new ArrayList<>();
        if (problems != null) {
            this.problems.addAll(problems);
        }
    }

    /**
     * Gets the problems that caused this exception.
     *

   * class documentation above). This method is <i>generally expected</i>, but not absolutely
   * required, to have the following properties:
   *
   * <ul>
   *   <li>Its execution does not cause any observable side effects.
   *   <li>The computation is <i>consistent with equals</i>; that is, {@link Objects#equal
   *       Objects.equal}{@code (a, b)} implies that {@code predicate.apply(a) ==
   *       predicate.apply(b))}.

     * and will cause {@link #build} to fail.
     */
    @CanIgnoreReturnValue
    public <T extends B> Builder<B> put(Class<T> key, T value) {
      mapBuilder.put(key, value);
      return this;
    }

    /**
     * Associates all of {@code map's} keys and values in the built map. Duplicate keys are not
     * allowed, and will cause {@link #build} to fail.
     *

            CollectionSize.ANY)
        .withSetUp(setUp)
        .withTearDown(tearDown)
        .createTestSuite();
  }

  private static LinkageError newLinkageError(Throwable cause) {
    return new LinkageError(cause.toString(), cause);
  }

	. "bytes"
	"syscall"
	"testing"
)

// This file tests the situation where byte operations are checking
// data very near to a page boundary. We want to make sure those
// operations do not read across the boundary and cause a page
// fault where they shouldn't.

// These tests run only on linux. The code being tested is
// not OS-specific, so it does not need to be tested on all
// operating systems.

        return lockedGetOrLoad(key, hash, loader);
      } catch (ExecutionException ee) {
        Throwable cause = ee.getCause();
        if (cause instanceof Error) {
          throw new ExecutionError((Error) cause);
        } else if (cause instanceof RuntimeException) {
          throw new UncheckedExecutionException(cause);
        }
        throw ee;
      } finally {
        postReadCleanup();
      }
    }