# Advanced Security { #advanced-security }

## Additional Features { #additional-features }

There are some extra features to handle security apart from the ones covered in the [Tutorial - User Guide: Security](../../tutorial/security/index.md).

/// tip

The next sections are **not necessarily "advanced"**.

And it's possible that for your use case, the solution is in one of them.

///

## Read the Tutorial first { #read-the-tutorial-first }

Source code in this repository is covered by (i) a dual license under the Server
Side Public License, v 1 and the Elastic License 2.0 or (ii) an Apache License
2.0 compatible license or (iii) solely under the Elastic License 2.0, in each
case, as noted in the applicable header. The default throughout the repository
is a dual license under the Server Side Public License, v 1 and the Elastic
License 2.0, unless the header specifies another license. Code that is licensed

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// Package ioutil implements some I/O utility functions which are not covered
// by the standard library.
package ioutil

import (
	"errors"
	"io"
)

// ErrOverread is returned to the reader when the hard limit of HardLimitReader is exceeded.

    assertFalse(
        "after removeAll(e), a collection should not contain e even "
            + "if it initially contained e more than once.",
        getList().contains(duplicate));
  }

  // All other cases are covered by CollectionRemoveAllTester.

    assertFalse(
        "after removeAll(e), a collection should not contain e even "
            + "if it initially contained e more than once.",
        getList().contains(duplicate));
  }

  // All other cases are covered by CollectionRemoveAllTester.

    @Override
    public boolean isActive(Profile profile) throws ProfileActivationException {
        Activation activation = profile.getActivation();

        String jdk = activation.getJdk();

        // null case is covered by canDetermineActivation(), so we can do a straight startsWith() here.
        if (jdk.startsWith("[") || jdk.startsWith("(")) {
            try {
                return matchJdkVersionRange(jdk);

import com.google.common.annotations.J2ktIncompatible;
import java.math.BigDecimal;
import java.math.RoundingMode;

/**
 * A class for arithmetic on {@link BigDecimal} that is not covered by its built-in methods.
 *
 * @author Louis Wasserman
 * @since 30.0
 */
@J2ktIncompatible
@GwtIncompatible
public class BigDecimalMath {
  private BigDecimalMath() {}

  /**

    testers.add(SetRemoveTester.class);
    // SetRemoveAllTester doesn't exist because, Sets not permitting
    // duplicate elements, there are no tests for Set.removeAll() that aren't
    // covered by CollectionRemoveAllTester.
    return testers;
  }

  @Override
  protected List<TestSuite> createDerivedSuites(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>

import com.google.common.collect.testing.features.CollectionSize;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Set;
import org.junit.Ignore;

/**
 * Tests for {@code Multiset.elementSet()} not covered by the derived {@code SetTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests for {@link ImmutableGraph} and {@link ImmutableGraph.Builder} that are not ready covered by
 * {@link StandardImmutableDirectedGraphTest}.
 */
@RunWith(JUnit4.class)
@NullUnmarked
public class StandardImmutableGraphAdditionalTest {

  @Test
  public void immutableGraph() {