in struts2-secure-jakarta-stream-multipart-parser-plugin/src/main/java/org/apache/struts/extras/SecureJakartaStreamMultiPartRequest.java [384:400]
private void processFileItemStreamAsFormField(FileItemStream itemStream) {
String fieldName = itemStream.getFieldName();
try {
List<String> values = null;
String fieldValue = Streams.asString(itemStream.openStream());
if (!parameters.containsKey(fieldName)) {
values = new ArrayList<String>();
parameters.put(fieldName, values);
} else {
values = parameters.get(fieldName);
}
values.add(fieldValue);
} catch (IOException e) {
e.printStackTrace();
LOG.warn("Failed to handle form field '#0'.", fieldName);
}
}