8263621: Convert jdk.compiler to use Stream.toList()

Reviewed-by: mcimadamore, vromero

src/jdk.compiler/share/classes/com/sun/tools/javac/api/BasicJavacTask.java

@@ -204,7 +204,7 @@ public void initPlugins(Set<List<String>> pluginOpts) {
                 java.util.List<String> options =
                         pluginDesc.getOptions().entrySet().stream()
                                 .map(e -> e.getKey() + "=" + e.getValue())
-                                .collect(Collectors.toList());
+                                .toList();
                 try {
                     initPlugin(pluginDesc.getPlugin(), options.toArray(new String[options.size()]));
                 } catch (RuntimeException ex) {

src/jdk.compiler/share/classes/com/sun/tools/javac/file/JavacFileManager.java

@@ -491,7 +491,7 @@ public void list(Path userPath,
 
             java.util.List<Path> files;
             try (Stream<Path> s = Files.list(d)) {
-                files = (sortFiles == null ? s : s.sorted(sortFiles)).collect(Collectors.toList());
+                files = (sortFiles == null ? s : s.sorted(sortFiles)).toList();
             } catch (IOException ignore) {
                 return;
             }

src/jdk.compiler/share/classes/com/sun/tools/javac/file/Locations.java

@@ -953,7 +953,7 @@ private Collection<Path> systemClasses() throws IOException {
             Path modules = javaHome.resolve("modules");
             if (Files.isDirectory(modules.resolve("java.base"))) {
                 try (Stream<Path> listedModules = Files.list(modules)) {
-                    return listedModules.collect(Collectors.toList());
+                    return listedModules.toList();
                 }
             }
 

src/jdk.compiler/share/classes/com/sun/tools/javac/model/JavacTypes.java

@@ -123,7 +123,7 @@ public List<Type> directSupertypes(TypeMirror t) {
         Type ty = (Type)t;
         return types.directSupertypes(ty).stream()
                 .map(Type::stripMetadataIfNeeded)
-                .collect(Collectors.toList());
+                .toList();
     }
 
     @DefinedBy(Api.LANGUAGE_MODEL)

src/jdk.compiler/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java

@@ -343,7 +343,7 @@ private void initProcessorIterator(Iterable<? extends Processor> processors) {
             platformProcessors = platformProvider.getAnnotationProcessors()
                                                  .stream()
                                                  .map(PluginInfo::getPlugin)
-                                                 .collect(Collectors.toList());
+                                                 .toList();
         }
         List<Iterator<? extends Processor>> iterators = List.of(processorIterator,
                                                                 platformProcessors.iterator());

src/jdk.compiler/share/classes/com/sun/tools/javac/processing/PrintingProcessor.java

@@ -280,7 +280,7 @@ public PrintingElementVisitor visitType(TypeElement e, Boolean p) {
                          e.getEnclosedElements()
                          .stream()
                          .filter(elt -> elementUtils.getOrigin(elt) == Elements.Origin.EXPLICIT )
-                         .collect(Collectors.toList()) ) )
+                         .toList() ) )
                     this.visit(element);
             }
 

src/jdk.compiler/share/classes/com/sun/tools/sjavac/comp/PubapiVisitor.java

@@ -152,20 +152,20 @@ public Void visitExecutable(ExecutableElement e, Void p) {
     private List<PubApiTypeParam> getTypeParameters(List<? extends TypeParameterElement> elements) {
         return elements.stream()
                        .map(e -> new PubApiTypeParam(e.getSimpleName().toString(), getTypeDescs(e.getBounds())))
-                       .collect(Collectors.toList());
+                       .toList();
     }
 
     private List<TypeMirror> getParamTypes(ExecutableElement e) {
         return e.getParameters()
                 .stream()
                 .map(VariableElement::asType)
-                .collect(Collectors.toList());
+                .toList();
     }
 
     private List<TypeDesc> getTypeDescs(List<? extends TypeMirror> list) {
         return list.stream()
                    .map(TypeDesc::fromType)
-                   .collect(Collectors.toList());
+                   .toList();
     }
 
     public PubApi getCollectedPubApi() {

src/jdk.compiler/share/classes/com/sun/tools/sjavac/pubapi/PubApi.java

@@ -272,11 +272,11 @@ public void addPubMethod(PubMethod m) {
     private static List<TypeDesc> parseTypeDescs(List<String> strs) {
         return strs.stream()
                    .map(TypeDesc::decodeString)
-                   .collect(Collectors.toList());
+                   .toList();
     }
 
     private static List<PubApiTypeParam> parseTypeParams(List<String> strs) {
-        return strs.stream().map(PubApi::parseTypeParam).collect(Collectors.toList());
+        return strs.stream().map(PubApi::parseTypeParam).toList();
     }
 
     // Parse a type parameter string. Example input:

src/jdk.compiler/share/classes/jdk/internal/shellsupport/doc/JavadocHelper.java

@@ -284,12 +284,12 @@ public Void visitDocComment(DocCommentTree node, Void p) {
                                     executableElement.getParameters()
                                                      .stream()
                                                      .map(param -> param.getSimpleName().toString())
-                                                     .collect(Collectors.toList());
+                                                     .toList();
                             List<String> throwsList =
                                     executableElement.getThrownTypes()
                                                      .stream()
                                                      .map(TypeMirror::toString)
-                                                     .collect(Collectors.toList());
+                                                     .toList();
                             Set<String> missingParams = new HashSet<>(parameters);
                             Set<String> missingThrows = new HashSet<>(throwsList);
                             boolean hasReturn = false;