private
    fun formatChanges(changes: List<AbstractAcceptedApiChangesMaintenanceTask.AcceptedApiChange>): String {
        val gson: Gson = GsonBuilder().setPrettyPrinting().create()
        val initialString = gson.toJson(AcceptedApiChanges(changes))
        return adjustIndentation(initialString) + "\n"
    }

    /**
     * It appears there is no way to configure Gson to use 4 spaces instead of 2 for indentation.
     *

    protected
    fun generateSubprojectsJson(): String {
        val subprojects = generateSubprojects()
        val gson = GsonBuilder().setPrettyPrinting().create()
        return gson.toJson(subprojects) + '\n'
    }

    private
    fun generateSubprojectsDirectories(): List<File> {

        def stringWriter = new StringWriter()
        new JsonWriter(stringWriter).withCloseable { writer ->
            writer.setIndent("    ")
            new Gson().toJson(acceptanceJson, AcceptedApiChange, writer)
        }
        return stringWriter.toString()
    }

    String getCurrentVersion() {
        return context.getUserData().get("currentVersion")
    }

            }

            val newReleasedVersions = updateReleasedVersions(currentReleasedVersion, releasedVersions)

            releasedVersionsFile.writeText(GsonBuilder().setPrettyPrinting().create().toJson(newReleasedVersions))
        }

        private
        fun updateReleasedVersions(currentReleasedVersion: ReleasedVersion, releasedVersions: ReleasedVersions) =
            ReleasedVersions(