}
public void updateAnalysis(JavaCompileSpec spec) {
Clock clock = new Clock();
FileTree tree = fileOperations.fileTree(spec.getDestinationDir());
ClassFilesAnalyzer analyzer = new ClassFilesAnalyzer(this.analyzer);
tree.visit(analyzer);
ClassSetAnalysisData data = analyzer.getAnalysis();
stash.put(data);
LOG.info("Class dependency analysis for incremental compilation took {}.", clock.getTime());
}