boolean noExtraHeaders = "true".equalsIgnoreCase(getProperty(NOEXTRAHEADERS));
if (!noExtraHeaders) {
main.putValue(CREATED_BY, System.getProperty("java.version") + " (" + System.getProperty("java.vendor")
+ ")");
main.putValue(TOOL, "Bnd-" + getBndVersion());
main.putValue(BND_LASTMODIFIED, "" + System.currentTimeMillis());
}