}
			expectEmptyUpdate(t, ch)

			addFile := func() {
				// Add a file
				if symlink {
					testCase.writeToFile(linkedDirName, fileName, t)
					return
				}

				testCase.writeToFile(dirName, fileName, t)
			}

			go addFile()

			// For !watchDir: expect an update by SourceFile.reloadConfig().

        }

        @Override
        public boolean removeFile(ComponentVariant.File file) {
            return files.remove(file);
        }

        @Override
        public void addFile(String name, String uri) {
            files.add(new FileImpl(name, uri));
        }

        @Override
        public String getName() {
            return name;
        }

        @Override

	if err := cf.Err(); err != nil {
		return err
	}

	// Create the module zip file.
	zw := zip.NewWriter(w)
	prefix := fmt.Sprintf("%s@%s/", m.Path, m.Version)

	addFile := func(f File, path string, size int64) error {
		rc, err := f.Open()
		if err != nil {
			return err
		}
		defer rc.Close()
		w, err := zw.Create(prefix + path)
		if err != nil {
			return err
		}

	if err != nil {
		return ""
	}
	defer f.Close()

	var src [4 << 10]byte // read at most 4KB
	n, _ := f.Read(src[:])

	var first string
	var s scanner.Scanner
	s.Init(fset.AddFile("", fset.Base(), n), src[:n], nil /* ignore errors */, scanner.ScanComments)
	for {
		_, tok, lit := s.Scan()
		switch tok {
		case token.COMMENT:
			// remove trailing */ of multi-line comment
			if lit[1] == '*' {

files such as assembly. To report a diagnostic against a line of a
raw text file, use the following sequence:

	content, err := pass.ReadFile(filename)
	if err != nil { ... }
	tf := fset.AddFile(filename, -1, len(content))
	tf.SetLinesForContent(content)
	...
	pass.Reportf(tf.LineStart(line), "oops")

# Modular analysis with Facts

To improve efficiency and scalability, large programs are routinely

        for (ModuleFile file : files) {
            variant.addFile(file.name, file.uri);
        }
        for (ModuleDependency dependency : dependencies) {

        }

        private void readVariantFiles(MutableComponentVariant variant) throws IOException {
            int count = decoder.readSmallInt();
            for (int i = 0; i < count; i++) {
                variant.addFile(decoder.readString(), decoder.readString());
            }
        }

        private void readVariantCapabilities(MutableComponentVariant variant) throws IOException {

                attribute(DocsType.DOCS_TYPE_ATTRIBUTE, getObjects().named(DocsType, "pom"))
            }
            withFiles {
                removeAllFiles()
                addFile("\${context.details.id.name}-\${context.details.id.version}.pom")
            }
        }
    }
}

"""

                            ac.attribute(DocsType.DOCS_TYPE_ATTRIBUTE, docsType)
                        }
                        vm.withFiles {
                            it.addFile("\${id.name}-\${id.version}-\${variant}.jar")
                        }
                    }

                }
            }
            repositories {

Then we set the `TARGET_JVM_VERSION_ATTRIBUTE` to `8` for both variants, remove any existing file from the new variants with `removeAllFiles()`, and add the jdk8 jar file with `addFile()`.
The `removeAllFiles()` is needed, because the reference to the main jar `quasar-core-0.7.5.jar` is copied from the corresponding base variant.