return a -> matches(artifact.getGroupId(), a.getGroupId())
                && matches(artifact.getArtifactId(), a.getArtifactId())
                && matches(artifact.getBaseVersion(), a.getBaseVersion())
                && matches(artifact.getExtension(), a.getExtension())
                && matches(artifact.getClassifier(), a.getClassifier());
    }

            @Override
            public int size() {
                return (int) properties.entrySet().stream()
                        .filter(PropertiesAsMap::matches)
                        .count();
            }
        };
    }

    private static boolean matches(Entry<Object, Object> entry) {
        return entry.getKey() instanceof String && entry.getValue() instanceof String;
    }

     * Determines if the OS on which Maven is executing matches the
     * given OS family.
     *
     * @param family the family to check for
     * @return true if the OS matches
     *
     */
    public static boolean isFamily(String family) {
        return isFamily(family, OS_NAME);
    }

    /**
     * Determines if the OS on which Maven is executing matches the
     * given OS family derived from the given OS name

    /**
     * Checks whether the current Maven runtime matches the specified version range. A version range can either use the
     * usual mathematical syntax "[2.0.10,2.1.0),[3.0,)" or use a single version "2.2.1". The latter is a short form for
     * "[2.2.1,)", i.e. denotes the minimum version required.
     *
     * @param versionRange The version range to match the current Maven runtime against, must not be {@code null}.

     */
    String findTool(String toolName);

    /**
     * Let the toolchain decide if it matches requirements defined
     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}
     * @return {@code true} if the requirements match, otherwise {@code false}
     */
    boolean matchesRequirements(Map<String, String> requirements);

        ComponentLookupException e =
                assertThrows(ComponentLookupException.class, () -> container.lookup(MySingletonBean2.class));
        assertTrue(e.getMessage().matches("[\\s\\S]*: Can not set .* field .* to [\\s\\S]*"));

        MySingletonBean bean = container.lookup(MySingletonBean.class);
        assertNotNull(bean);
        assertNotNull(bean.anotherBean);

        String test = expectedVersion;
        boolean reverse = false;
        final boolean result;
        if (test.startsWith(REGEX_PREFIX)) {
            result = actualVersion.matches(test.substring(REGEX_PREFIX.length()));
        } else {
            if (test.startsWith("!")) {
                reverse = true;
                test = test.substring(1);
            }

package org.codehaus.plexus.classworlds.realm; public synchronized class Entry implements Comparable { private final ClassRealm realm; private final String pkgName; void Entry(ClassRealm, String); ClassRealm getRealm(); String getPackageName(); boolean matches(String); public int compareTo(Object); public boolean equals(Object); public int hashCode(); } org/codehaus/plexus/classworlds/realm/NoSuchRealmException.class package org.codehaus.plexus.classworlds.realm; public synchronized class NoSuchRealmException...

        ArtifactVersion matched = null;
        for (ArtifactVersion version : versions) {
            if (containsVersion(version)) {
                // valid - check if it is greater than the currently matched version
                if (matched == null || version.compareTo(matched) > 0) {
                    matched = version;
                }
            }
        }

import org.junit.jupiter.api.Test;

import static org.codehaus.plexus.testing.PlexusExtension.getBasedir;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.endsWith;
import static org.hamcrest.Matchers.lessThan;
import static org.hamcrest.Matchers.startsWith;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;