private VersionParserException parseInvalid(String constraint) {
        try {
            versionParser.parseVersionConstraint(constraint);
            fail("expected exception for constraint " + constraint);
            return null;
        } catch (VersionParserException e) {
            return e;
        }
    }

    @Test

import java.util.regex.Pattern;

import org.apache.maven.api.Version;
import org.apache.maven.api.VersionConstraint;
import org.apache.maven.api.VersionRange;
import org.apache.maven.api.services.VersionParserException;
import org.apache.maven.api.services.model.ModelVersionParser;
import org.eclipse.aether.version.InvalidVersionSpecificationException;
import org.eclipse.aether.version.VersionScheme;

        } catch (VersionParserException e) {
            throw new AssertionError(range + " should be valid but failed to parse due to: " + e.getMessage(), e);
        }
    }

    private void parseInvalid(String range) {
        try {
            versionParser.parseVersionRange(range);
            fail(range + " should be invalid");
        } catch (VersionParserException e) {
            assertTrue(true);

     *
     * @param version the version string to parse
     * @return the version parsed from the given string
     * @throws org.apache.maven.api.services.VersionParserException if the parsing failed
     * @see org.apache.maven.api.services.VersionParser#parseVersion(String)
     */
    @Nonnull
    Version parseVersion(@Nonnull String version);

    /**

import org.apache.maven.api.VersionRange;
import org.apache.maven.api.model.ActivationFile;
import org.apache.maven.api.model.Exclusion;
import org.apache.maven.api.model.InputSource;
import org.apache.maven.api.services.VersionParserException;
import org.apache.maven.api.services.model.ModelVersionParser;
import org.apache.maven.building.Source;
import org.apache.maven.model.Activation;
import org.apache.maven.model.Build;