* <p>
 * Target directories on the file system or JAR files are provided as {@link URL}. The appropriate {@link Traverser} is returned depending on the protocol of the URL, and you can traverse classes and resources by calling its methods.
 * </p>
 * <p>
 * Supported protocols:
 * </p>
 * <ul>
 * <li>{@literal file}</li>
 * <li>{@literal jar}</li>

        assertEquals("", depArtifact.getClassifier());
        assertEquals("jar", depArtifact.getExtension());
        assertEquals("java", depArtifact.getProperty("language", null));
        assertEquals("jar", depArtifact.getProperty("type", null));
        assertEquals("true", depArtifact.getProperty("constitutesBuildPath", null));

            logger.warn("Failed to delete: path={}", dir, e);
        }
    }

    /**
     * Gets the JAR file path for the given artifact.
     *
     * @param artifact the theme artifact
     * @return the path to the JAR file
     * @throws ThemeException if the JAR file does not exist
     */
    protected Path getJarFile(final Artifact artifact) {

            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-jar-plugin</artifactId>
        <executions>
          <execution>
            <id>create-test-jar</id>
            <goals><goal>test-jar</goal></goals>
          </execution>

            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-jar-plugin</artifactId>
        <executions>
          <execution>
            <id>create-test-jar</id>
            <goals><goal>test-jar</goal></goals>
          </execution>

    }

    /**
     * @throws Exception
     */
    public void testToCanonicalProtocol() throws Exception {
        assertEquals("jar", URLUtil.toCanonicalProtocol("wsjar"));
        assertEquals("jar", URLUtil.toCanonicalProtocol("jar"));
        assertEquals("zip", URLUtil.toCanonicalProtocol("zip"));
        assertEquals("file", URLUtil.toCanonicalProtocol("file"));
    }

    /**

        }
        return Paths.get(webinfBase, names);
    }

    /**
     * Gets JAR files from the WEB-INF/lib directory that start with the specified prefix.
     *
     * @param namePrefix the prefix that JAR file names should start with
     * @return an array of File objects representing matching JAR files, or empty array if none found
     */
    public static File[] getJarFiles(final String namePrefix) {

            <phase>post-integration-test</phase>
            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-jar-plugin</artifactId>
        <executions>
          <execution>
            <id>create-test-jar</id>
            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>

            <phase>post-integration-test</phase>
            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-jar-plugin</artifactId>
        <executions>
          <execution>
            <id>create-test-jar</id>
            <goals><goal>test-jar</goal></goals>
          </execution>
        </executions>
      </plugin>

        }
        return protocol;
    }

    /**
     * Returns the {@link File} object of the Jar file indicated by the URL.
     *
     * @param fileUrl
     *            The URL of the Jar file. Must not be {@literal null}.
     * @return The {@link File} of the Jar file.
     */
    public static File toFile(final URL fileUrl) {
        assertArgumentNotNull("fileUrl", fileUrl);