on ExtBean.java this would probably do:

public List getFileList() throws NotesException {


String dirRef = “[program]\ndext\.jar”;//we like 14.5 more :-)


Session session = XSPUtils.getCurrentSession();
if (null != session) {
String dominoVersion = null;
//https://help.hcl-software.com/dom_designer/14.5.0/basic/H_VERSION.html?hl=%40version
Vector result = session.evaluate(“@Version”);
if (null != result && !result.isEmpty()) {
dominoVersion = result.elementAt(0).toString();
}


long versionDomino = 114;//Notes® 3.x
if (null != dominoVersion) {
versionDomino = Long.parseLong(dominoVersion);
}
if (versionDomino<485) {
dirRef = “[config]\jvm\lib\ext\.jar”;
}
}
return Directory.getFiles(dirRef);
}