baseDir = tempDir;
                // Count expired files
                int count = 0;
                File[] dirs = baseDir.listFiles();
                if (dirs != null) {
                    for (File dir : dirs) {
                        if (dir.isDirectory() && dir.getName().startsWith("_")) {
                            count++;
                        }
                    }
                }

        assertNotNull(confPath);

        // Test with multiple names
        confPath = ResourceUtil.getConfPath("dir1", "dir2", "file.conf");
        assertNotNull(confPath);
        assertTrue(confPath.toString().contains("dir1"));
        assertTrue(confPath.toString().contains("dir2"));
        assertTrue(confPath.toString().contains("file.conf"));
    }

    public void test_getConfOrClassesPath() {

		<mkdir dir="${target.dir}" />
		<delete dir="${plugins.dir}" />
		<mkdir dir="${plugins.dir}" />
		<!-- analysis-extension -->
		<antcall target="install.plugin">
			<param name="repo.url" value="${maven.release.repo.url}" />
			<param name="plugin.groupId" value="org/codelibs/opensearch" />
			<param name="plugin.name.prefix" value="opensearch-" />
			<param name="plugin.name" value="analysis-extension" />

		</condition>
	</target>

	<target name="download.dbflute" depends="mydbflute.check" unless="mydbflute.exists">
		<mkdir dir="${mydbflute.dir}" />
		<get dest="${target.dir}/mydbflute.zip">
			<url url="${mydbflute.url}" />
		</get>
		<unzip dest="${mydbflute.dir}" src="${target.dir}/mydbflute.zip">
			<patternset>
				<include name="lastaflute-example-waterfront-${branch.name}/mydbflute/dbflute-1.x/**" />

	<target name="install.modules">
		<mkdir dir="${target.dir}" />
		<delete dir="${modules.dir}" />
		<mkdir dir="${modules.dir}" />

		<!-- analysis-common -->
		<antcall target="install.module">
			<param name="repo.url" value="${maven.release.repo.url}" />
			<param name="module.groupId" value="org/codelibs/opensearch/module" />
			<param name="module.name.prefix" value="" />
			<param name="module.name" value="analysis-common" />

        if (tempDir != null && Files.exists(tempDir)) {
            deleteDirectory(tempDir);
        }
        super.tearDown();
    }

    private void deleteDirectory(Path dir) throws IOException {
        Files.walk(dir).sorted((a, b) -> b.compareTo(a)).forEach(path -> {
            try {
                Files.delete(path);
            } catch (IOException e) {
                // Ignore
            }
        });

    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_nonNegative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 16;
    assertThat(dim1 * dim2).isAtLeast(0);

		<!-- DEB & RPM build -->
		<packaging.fess.home.dir>/usr/share/fess</packaging.fess.home.dir>
		<packaging.fess.app.dir>${packaging.fess.home.dir}/app</packaging.fess.app.dir>
		<packaging.fess.bin.dir>${packaging.fess.home.dir}/bin</packaging.fess.bin.dir>
		<packaging.fess.conf.dir>/etc/fess</packaging.fess.conf.dir>
		<packaging.fess.var.dir>/var/lib/fess</packaging.fess.var.dir>
		<packaging.fess.lib.dir>${packaging.fess.home.dir}/lib</packaging.fess.lib.dir>

    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_nonNegative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 16;
    assertThat(dim1 * dim2).isAtLeast(0);

    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_nonNegative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 16;
    assertThat(dim1 * dim2).isAtLeast(0);