<plugins>
      <plugin>
        <artifactId>maven-enforcer-plugin</artifactId>
        <executions>
          <execution>
            <id>enforce-versions</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <rules>
                <requireMavenVersion>
                  <version>3.0.5</version>
                </requireMavenVersion>

    <plugins>
      <plugin>
        <artifactId>maven-enforcer-plugin</artifactId>
        <executions>
          <execution>
            <id>enforce-versions</id>
            <goals>
              <goal>enforce</goal>
            </goals>
            <configuration>
              <rules>
                <requireMavenVersion>
                  <version>3.0.5</version>
                </requireMavenVersion>

internal fun Headers.commonValues(name: String): List<String> {
  var result: MutableList<String>? = null
  for (i in 0 until size) {
    if (name.equals(name(i), ignoreCase = true)) {
      if (result == null) result = ArrayList(2)
      result.add(value(i))
    }
  }
  return result?.unmodifiable().orEmpty()
}

    }
  }

  static class SlowElement extends Element {
    SlowElement(int hash) {
      super(hash);
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return slowItDown() != 1 && super.equals(obj);
    }

    @Override
    public int hashCode() {
      return slowItDown() + hash;
    }

    @Override
    public int compareTo(Element e) {

        <artifactId>maven-dependency-plugin</artifactId>
        <executions>
          <execution>
            <id>unpack-jline-native</id>
            <goals>
              <goal>unpack-dependencies</goal>
            </goals>
            <configuration>
              <includeArtifactIds>jline-native</includeArtifactIds>
              <includes>org/jline/nativ/**</includes>
            </configuration>

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testSetValue_valueAbsent() {
    for (Entry<K, V> entry : getMap().entrySet()) {
      if (entry.getKey().equals(k0())) {
        assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3()));
      }
    }
    expectReplacement(entry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)

    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (!StringSource.class.equals(obj.getClass())) {
            return false;
        }

        StringSource other = (StringSource) obj;
        return this.content.equals(other.content);
    }

                        && Objects.equals(dependencies, that.dependencies)
                        && Objects.equals(managedDependencies, that.managedDependencies)
                        && Objects.equals(pathScope, that.pathScope)
                        && Objects.equals(pathTypeFilter, that.pathTypeFilter)
                        && Objects.equals(repositories, that.repositories);
            }

            @Override

              return endOfData();
            }
          };
        }
      };
    }

    @Override
    public boolean equals(@Nullable Object o) {
      if (o instanceof RangeMap) {
        RangeMap<?, ?> rangeMap = (RangeMap<?, ?>) o;
        return asMapOfRanges().equals(rangeMap.asMapOfRanges());
      }
      return false;
    }

    @Override
    public int hashCode() {

    public void testEquals() throws Exception {
        assertEquals("1", true, StringUtil.equals("a", "a"));
        assertEquals("2", true, StringUtil.equals(null, null));
        assertEquals("3", false, StringUtil.equals("a", null));
        assertEquals("4", false, StringUtil.equals(null, "a"));
        assertEquals("5", false, StringUtil.equals("a", "b"));
    }

    /**
     * @throws Exception
     */
    @Test