8224612: javadoc should better handle empty set of doclet options

Reviewed-by: hannesw
This commit is contained in:
Pavel Rappo 2020-04-21 20:09:49 +01:00
parent d19f5f6830
commit 392b75d158
2 changed files with 173 additions and 4 deletions

View file

@ -188,8 +188,6 @@ public class Start {
// let doclet print usage information
if (docletClass != null) {
String name = doclet.getName();
messager.notice("main.doclet.usage.header", name);
showDocletOptions(kind == ToolOption.Kind.EXTENDED
? Option.Kind.EXTENDED
: Option.Kind.STANDARD);
@ -252,6 +250,13 @@ public class Start {
}
private void showDocletOptions(Option.Kind kind) {
String name = doclet.getName();
Set<? extends Option> options = getSupportedOptionsOf(doclet);
if (options.isEmpty()) {
return;
}
messager.notice("main.doclet.usage.header", name);
Comparator<Doclet.Option> comp = new Comparator<Doclet.Option>() {
final Collator collator = Collator.getInstance(Locale.US);
{ collator.setStrength(Collator.PRIMARY); }
@ -262,7 +267,7 @@ public class Start {
}
};
doclet.getSupportedOptions().stream()
options.stream()
.filter(opt -> opt.getKind() == kind)
.sorted(comp)
.forEach(this::showDocletOption);
@ -577,7 +582,7 @@ public class Start {
int handleDocletOption(int idx, List<String> args, boolean isToolOption)
throws OptionException {
if (docletOptions == null) {
docletOptions = doclet.getSupportedOptions();
docletOptions = getSupportedOptionsOf(doclet);
}
String arg = args.get(idx);
String argBase, argVal;
@ -623,6 +628,11 @@ public class Start {
return idx;
}
private static Set<? extends Option> getSupportedOptionsOf(Doclet doclet) {
Set<? extends Option> options = doclet.getSupportedOptions();
return options == null ? Set.of() : options;
}
/**
* Performs an initial pass over the options, primarily to determine
* the doclet to be used (if any), so that it may participate in the