given:
        def converter = new DependencyLockingNotationConverter()
        def lockEntry = 'org:foo:1.1'

        when:
        def converted = converter.convertFromLockNotation(lockEntry)

        then:
        converted instanceof ModuleComponentIdentifier
        converted.group == 'org'
        converted.module == 'foo'
        converted.version == '1.1'
    }

import org.gradle.internal.component.external.model.DefaultModuleComponentIdentifier;

class DependencyLockingNotationConverter {

    ModuleComponentIdentifier convertFromLockNotation(String notation) {
        String[] parts = notation.split(":");
        if (parts.length != 3) {

    }

    private ModuleComponentIdentifier parseLockNotation(Describable lockOwner, String module) {
        ModuleComponentIdentifier lockedIdentifier;
        try {
            lockedIdentifier = converter.convertFromLockNotation(module);
        } catch (IllegalArgumentException e) {
            throw new InvalidLockFileException(lockOwner.getDisplayName(), e, LockFileReaderWriter.FORMATTING_DOC_LINK);
        }