}

        if (parentDir.getName().equals("plugins")) {
            File libDir = parentDir.getParentFile();
            return parentDir.isDirectory() && libDir.exists() && libDir.isDirectory() && libDir.getName().equals("lib") ? libDir.getParentFile() : null;
        }

        return null;
    }

        if (StringUtil.isBlank(libPath)) {
            return new File[0];
        }
        final File libDir = new File(libPath);
        if (!libDir.exists()) {
            return new File[0];
        }
        return libDir.listFiles((file, name) -> name.startsWith(namePrefix));
    }

    public static File[] getPluginJarFiles(final String namePrefix) {

            projectConfigured(":plugins")
            projectsConfigured(":libs:a", ":libs:b") // TODO - should not be configured, but this currently happens to calculate the dependency substitutions
            modelsCreated(":libs")
            modelsReused(":", ":plugins", ":libs:a", ":libs:b")
        }
    }

        def checksumDir = distsDir.file(parentDirName).createDir(UUID.randomUUID())
        def libDir = checksumDir.file("gradle-${version.baseVersion.version}", "lib").createDir()
        def jarFile = libDir.file("$jarPrefix-${version.baseVersion.version}.jar")
        jarWriter.execute(version, jarFile)
        checksumDir.lastModified = lastModificationTime

        }
    }

    protected void appendJarFile(final String cpSeparator, final StringBuilder buf, final File libDir, final String basePath) {
        final File[] jarFiles = libDir.listFiles((FilenameFilter) (dir, name) -> name.toLowerCase().endsWith(".jar"));
        if (jarFiles != null) {
            for (final File file : jarFiles) {

        def fixture = newConfigurationCacheFixture()
        buildFile("""
            plugins {
                id("java-library")
            }
            dependencies {
                implementation("lib:lib:1.0")
            }
        """)

        when:
        configurationCacheRun("assemble")

        then:
        result.assertTasksExecuted(
            ":build-logic:compileJava",

            }
            group = "lib"
        """
        buildFile << """
            plugins {
                id("java-library")
            }
            dependencies { implementation "lib:lib:1.2" }
        """

        when:
        succeeds("build")

        then:
        noExceptionThrown()
    }

    def "fails when target of GradleBuild task has no settings or build file"() {