import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Static convenience methods that serve the same purpose as Java language <a
 * href="https://docs.oracle.com/javase/8/docs/technotes/guides/language/assert.html">assertions</a>,
 * except that they are always enabled. These methods should be used instead of Java assertions
 * whenever there is a chance the check may fail "in real life". Example:
 *

        try {
            final Class<?> clazz = Class.forName("org.apache.commons.httpclient.MultiThreadedHttpConnectionManager");
            final Method method = clazz.getMethod("shutdownAll", (Class<?>[]) null);
            method.invoke(null, (Object[]) null);
        } catch (final ClassNotFoundException e) {
            // ignore
        } catch (final Exception e) {

      @Require(absent = FOO)
      public void test() {}
    }

    Method method = Tester.class.getMethod("test");
    ConflictingRequirementsException e =
        assertThrows(ConflictingRequirementsException.class, () -> buildTesterRequirements(method));
    assertThat(e.getConflicts()).containsExactly(FOO);
    assertThat(e.getSource()).isEqualTo(method);
  }

  public void testBuildDeclaredTesterRequirements() throws Exception {

            }
        }
        return INSTANCE;
    }


    /**
     * This static method registers the SMB URL protocol handler which is
     * required to use SMB URLs with the <tt>java.net.URL</tt> class. If this
     * method is not called before attempting to create an SMB URL with the
     * URL class the following exception will occur:
     * <blockquote>
     * 

        performProfileActivation(context, request.getProfileActivation());

        //
        // Builder, concurrency and parallelism
        //
        // We preserve the existing methods for builder selection which is to look for various inputs in the threading
        // configuration. We don't have an easy way to allow a pluggable builder to provide its own configuration

pkg go/types, method (*Named) TypeParams() *TypeParamList
pkg go/types, method (*Signature) RecvTypeParams() *TypeParamList
pkg go/types, method (*Signature) TypeParams() *TypeParamList
pkg go/types, method (*Term) String() string
pkg go/types, method (*Term) Tilde() bool
pkg go/types, method (*Term) Type() Type
pkg go/types, method (*TypeList) At(int) Type
pkg go/types, method (*TypeList) Len() int

 * limitations under the License.
 */

package com.google.common.collect.testing;

import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import com.google.common.annotations.GwtCompatible;

        assertArgumentNotNull("method", method);

        return isPublic(method.getModifiers());
    }

    /**
     * <code>public</code>かどうか返します。
     *
     * @param field
     *            フィールド。{@literal null}であってはいけません
     * @return パブリックかどうか
     */
    public static boolean isPublic(final Field field) {
        assertArgumentNotNull("field", field);

  /*
   * We avoid using a method reference or lambda here for now:
   *
   * - method reference: Inside Google, CacheBuilder is used from the implementation of a custom
   *   ClassLoader that is sometimes used as a system classloader. That's a problem because
   *   method-reference linking tries to look up the system classloader, and it fails because there
   *   isn't one yet.

   *
   * @param testerMethod a test method of a tester class
   * @return all the constraints implicitly or explicitly required by the method, its declaring
   *     class, or any of its superclasses.
   * @throws ConflictingRequirementsException if the requirements are mutually inconsistent.
   */
  public static TesterRequirements getTesterRequirements(Method testerMethod)
      throws ConflictingRequirementsException {