given:
        project.file('file') << "key2: value2"
        def manifest = convention.manifest {
            from 'file'
            attributes(key1: 'value1')
        }

        when:
        def mergedManifest = manifest.effectiveManifest

        then:
        manifest instanceof DefaultManifest
        mergedManifest.attributes as Map == [key1: 'value1', key2: 'value2', 'Manifest-Version': '1.0']
    }

                       whenMerged { classpath ->
                           classpath.entries.find { it.kind == 'src' && it.path == 'src/main/java' }.entryAttributes.key1 = 'value1'
                           classpath.entries.find { it.kind == 'src' && it.path == 'src/main/java' }.entryAttributes.key2 = 'value2'
                       }
                   }
               }
           }
        """
        file('src/main/java').mkdirs()

# missing key values
[plugins]
key=

        }
    }

    @Test
    fun `can handle Hashtable`() {
        val hashtable = Hashtable<String, Any>(100)
        hashtable.put("key1", "value1")
        hashtable.put("key2", true)
        hashtable.put("key3", 42)
        configurationCacheRoundtripOf(hashtable).run {
            assertThat(hashtable, equalTo(this))
        }
    }

                       whenMerged { classpath ->
                           classpath.entries.find { it.kind == 'src' && it.path == 'src/main/java' }.entryAttributes.key1 = 'value1'
                           classpath.entries.find { it.kind == 'src' && it.path == 'src/main/java' }.entryAttributes.key2 = 'value2'
                       }
                   }
               }
           }
        """
        file('src/main/java').mkdirs()

    @Test
    public void handlesKeysWithSameHashCode() {
        createCache();

        String key1 = new String(new byte[]{2, 31});
        String key2 = new String(new byte[]{1, 62});
        cache.put(key1, 1);
        cache.put(key2, 2);

        assertThat(cache.get(key1), equalTo(1));
        assertThat(cache.get(key2), equalTo(2));

        cache.close();
    }

    private void checkAdds(Integer... values) {

List<String> list = new ArrayList<String>()
list.add('org/gradle/api/**')
list.add('org/gradle/internal/**')
test.includes = list

// Map literal.
Map<String, String> map = [key1:'value1', key2: 'value2']

// Groovy will coerce named arguments
// into a single map argument
apply plugin: 'java'
// end::listAndMapLiterals[]

// tag::closureAsLastParam[]
repositories {
    println "in a closure"

        options.systemProperties = [key: 12, key2: "value", key3: null]

        then:
        options.systemProperties == [key: 12, key2: "value", key3: null]
    }

    def "can add system properties"() {
        when:
        options.systemProperties(key: 12)
        options.systemProperty('key2', 'value2')

        then:
        options.systemProperties == [key: 12, key2: 'value2']
    }

        def result = getMapUnderTestToRead().stringPropertyNames().containsAll(Arrays.asList(key1, key2))

        then:
        result == expectedResult
        1 * onAccess.accept(key1, reportedValue1)
        1 * onAccess.accept(key2, reportedValue2)
        0 * onAccess._

        where:
        key1       | reportedValue1  | key2           | reportedValue2 | expectedResult

        when:
        def result = cache.get("key", producer, completion)

        then:
        result == "value"

        and:
        1 * target.get("key") >> null
        1 * producer.apply("key") >> "value"
        1 * target.putLater("key", "value", completion)
        0 * _

        when:
        def cached = cache.get("key")

        then:
        cached == "value"
        0 * _