} catch (Exception e) {
            throw new IllegalStateException("Could not read previous compilation result.", e);
        }
    }

    public void writePreviousCompilationData(PreviousCompilationData data, File target) {
        try (KryoBackedEncoder encoder = new KryoBackedEncoder(new FileOutputStream(target))) {
            new PreviousCompilationData.Serializer(interner).write(encoder, data);

        File previousCompilationDataFile = Objects.requireNonNull(spec.getCompileOptions().getPreviousCompilationDataFile());
        previousCompilationAccess.writePreviousCompilationData(data, previousCompilationDataFile);
    }

    private CompilerApiData getCompilerApiData(JavaCompileSpec spec, WorkResult result) {
        if (spec.getCompileOptions().supportsCompilerApi()) {