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

        String name = property.getName();
        boolean reverseName = false;

        if (name != null && name.startsWith("!")) {
            reverseName = true;
            name = name.substring(1);
        }

        if (name == null || name.isEmpty()) {
            problems.add(
                    BuilderProblem.Severity.ERROR,

 * under the License.
 */
package org.apache.maven.lifecycle.providers;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

/**
 * {@code clean} lifecycle provider.
 */
@Named(CleanLifecycleProvider.LIFECYCLE_ID)
@Singleton
public final class CleanLifecycleProvider extends AbstractLifecycleProvider {
    static final String LIFECYCLE_ID = "clean";

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.toolchain;

import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.io.InputStream;
import java.nio.file.Files;

import org.apache.maven.toolchain.model.PersistedToolchains;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.aether;

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.maven.api.services.Lookup;
import org.apache.maven.api.spi.PropertyContributor;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project;

import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.internal.impl.resolver.DefaultModelResolver;

@Named
@Singleton
@Deprecated

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.legacy;

import javax.inject.Named;
import javax.inject.Singleton;

/**
 * Wagon for testing, for protocol <code>c</code>
 *
 */
@Named("c")
@Singleton
public class WagonC extends WagonMock {
    public String[] getSupportedProtocols() {
        return new String[] {"c"};
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.legacy;

import javax.inject.Named;

/**
 * Wagon with per-lookup instantiation strategy.
 */
@Named("perlookup")
public class PerLookupWagon extends WagonMock {

    public String[] getSupportedProtocols() {
        return new String[] {"perlookup"};
    }

 * under the License.
 */
package org.apache.maven.execution.scope.internal;

import javax.inject.Inject;
import javax.inject.Named;

import org.apache.maven.execution.MojoExecutionListener;

/**
 * MojoExecutionScopeCoreModule
 */
@Named
public class MojoExecutionScopeCoreModule extends MojoExecutionScopeModule {

    @Inject
    public MojoExecutionScopeCoreModule() {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.legacy.resolver.conflict;

import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.artifact.resolver.ResolutionNode;
import org.apache.maven.artifact.versioning.ArtifactVersion;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.legacy.resolver.transform;

import javax.inject.Named;
import javax.inject.Singleton;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.RepositoryRequest;