Here an example to reproduce the issue.
On my machine when looping 8 times (IntStream.range(1,8)) it generates the correct pdf,
but when looping 9 times (as in the example below) it is stuck on document.save(“myExample.pdf”) for at least 5 minutes, after which I stopped the test. Such behaviour in the Aspose library which we cannot anticipate upfront is really worrying for us, it would be nice to know how we can avoid this in the future.
private static final String LONG_TEXT = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy "
+ "eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed "
+ "diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum."
+ " Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum "
+ "dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing "
+ "elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna"
+ " aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo "
+ "dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus"
+ " est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur"
+ " sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et "
+ "dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam "
+ "et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea "
+ "takimata sanctus est Lorem ipsum dolor sit amet. \n"
+ "\n"
+ "Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse "
+ "molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero"
+ " eros et accumsan et iusto odio dignissim qui blandit praesent luptatum"
+ " zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum"
+ " dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh "
+ "euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. \n"
+ "\n"
+ "Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper "
+ "suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem "
+ "vel eum iriure dolor in hendrerit in vulputate velit esse molestie "
+ "consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et "
+ "accumsan et iusto odio dignissim qui blandit praesent luptatum zzril "
+ "delenit augue duis dolore te feugait nulla facilisi. \n"
+ "\n"
+ "Nam liber tempor cum soluta nobis eleifend option congue nihil "
+ "imperdiet doming id quod mazim placerat facer possim assum. Lorem ipsum"
+ " dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh "
+ "euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut "
+ "wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper "
+ "suscipit lobortis nisl ut aliquip ex ea commodo consequat. \n"
+ "\n"
+ "Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse "
+ "molestie consequat, vel illum dolore eu feugiat nulla facilisis. \n"
+ "\n"
+ "At vero eos et accusam et justo duo dolores et ea rebum. Stet clita "
+ "kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet."
+ " Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam "
+ "nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, "
+ "sed diam voluptua. At vero eos et accusam et justo duo dolores et ea "
+ "rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem "
+ "ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing"
+ " elitr, At accusam aliquyam diam diam dolore dolores duo eirmod eos "
+ "erat, et nonumy sed tempor et et invidunt justo labore Stet clita ea et"
+ " gubergren, kasd magna no rebum. sanctus sea sed takimata ut vero "
+ "voluptua. est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, "
+ "consetetur";
@Test
public void testBug() {
List<Field> nestedFields = new ArrayList<>();
FieldSetField nested1 = new FieldSetField();
nested1.setLabelKey(LONG_TEXT);
nested1.setFields(new ArrayList<>());
IntStream.range(1,9).forEach(i -> nestedFields.add(nested1));
FieldSetField field1 = new FieldSetField();
field1.setLabelKey("my.label.key");
field1.setFields(nestedFields);
List<FieldSetField> fields = new ArrayList();
IntStream.range(1,10).forEach(i -> fields.add(field1));
com.aspose.pdf.Document document = new com.aspose.pdf.Document();
com.aspose.pdf.Page page = document.getPages().add();
for (FieldSetField field: fields) {
BaseParagraph renderedField = visit(field);
page.getParagraphs().add(renderedField);
}
document.save("myExample.pdf");
}
public BaseParagraph visit(FieldSetField field) {
Table table = new Table();
table.setColumnWidths("500");
Cell cell = table.getRows().add().getCells().add();
table.setMargin(new MarginInfo(0, 10, 0, 10));
if (!StringUtils.isEmpty(field.getLabelKey())) {
TextFragment textFragment = new TextFragment(field.getLabelKey());
textFragment.getTextState().setFontSize(14);
textFragment.getTextState().setForegroundColor(Color.getDarkSlateGray());
textFragment.setMargin(new MarginInfo(0,0,0,10));
cell.getParagraphs().add(textFragment);
cell.setMargin(new MarginInfo(0, 5, 0, 0));
}
if (!field.getFields().isEmpty()) {
for(Field child : field.getFields()) {
BaseParagraph baseParagraph = visit((FieldSetField) child);
cell.getParagraphs().add(baseParagraph);
}
}
return table;
}
public class Field {
private String labelKey;
public String getLabelKey() {
return labelKey;
}
public void setLabelKey(String labelKey) {
this.labelKey = labelKey;
}
}
public class FieldSetField extends Field {
private List<Field> fields;
public List<Field> getFields() {
return fields;
}
public void setFields(List<Field> fields) {
this.fields = fields;
}
}
The generated pdf when using IntStream.range(1,8):
myExample.pdf (102.3 KB)