Code cleanup for csl.editor.semantic package

Author: lkishalmi

ide/csl.api/nbproject/project.properties

@@ -17,7 +17,7 @@
 
 spec.version.base=2.85.0
 is.autoload=true
-javac.source=1.8
+javac.release=17
 
 javadoc.overview=${basedir}/doc/overview.html
 javadoc.arch=${basedir}/arch.xml

ide/csl.api/src/org/netbeans/modules/csl/editor/semantic/ColoringManager.java

@@ -36,6 +36,7 @@
 import javax.swing.text.AttributeSet;
 import javax.swing.text.Document;
 import javax.swing.text.JTextComponent;
+import org.netbeans.api.annotations.common.NonNull;
 import org.netbeans.api.editor.mimelookup.MimeLookup;
 import org.netbeans.api.editor.mimelookup.MimePath;
 import org.netbeans.api.editor.settings.AttributesUtilities;
@@ -61,7 +62,7 @@
  * @author Jan Lahoda
  */
 public final class ColoringManager {
-    private String mimeType;
+    private final String mimeType;
     private final Map<Set<ColoringAttributes>, String> type2Coloring;
 
     //private static final Font ITALIC = SettingsDefaults.defaultFont.deriveFont(Font.ITALIC);
@@ -71,7 +72,7 @@ public final class ColoringManager {
     public ColoringManager(String mimeType) {
         this.mimeType = mimeType;
 
-        type2Coloring = new LinkedHashMap<Set<ColoringAttributes>, String>();
+        type2Coloring = new LinkedHashMap<>();
 
         put("mark-occurrences", MARK_OCCURRENCES);
         put("mod-abstract", ABSTRACT);
@@ -123,7 +124,7 @@ private void put(String coloring, ColoringAttributes... attributes) {
         type2Coloring.put(attribs, coloring);
     }
 
-    Map<Set<ColoringAttributes>,Coloring> COLORING_MAP = new IdentityHashMap<Set<ColoringAttributes>, Coloring>();
+    final Map<Set<ColoringAttributes>,Coloring> COLORING_MAP = new IdentityHashMap<>();
 
     public Coloring getColoring(Set<ColoringAttributes> attrs) {
         Coloring c = COLORING_MAP.get(attrs);
@@ -139,7 +140,8 @@ public Coloring getColoring(Set<ColoringAttributes> attrs) {
 
         return c;
     }
-    
+
+    @NonNull
     public AttributeSet getColoringImpl(Coloring colorings) {
         FontColorSettings fcs = MimeLookup.getLookup(MimePath.get(mimeType)).lookup(FontColorSettings.class);
 
@@ -150,7 +152,7 @@ public AttributeSet getColoringImpl(Coloring colorings) {
 
         assert fcs != null;
 
-        List<AttributeSet> attribs = new LinkedList<AttributeSet>();
+        List<AttributeSet> attribs = new LinkedList<>();
 
         EnumSet<ColoringAttributes> es = EnumSet.noneOf(ColoringAttributes.class);
 
@@ -184,13 +186,11 @@ public AttributeSet getColoringImpl(Coloring colorings) {
 
         Collections.reverse(attribs);
 
-        AttributeSet result = AttributesUtilities.createComposite(attribs.toArray(new AttributeSet[0]));
-        
-        return result;
+        return AttributesUtilities.createComposite(attribs.toArray(AttributeSet[]::new));
     }
 
     private static AttributeSet adjustAttributes(AttributeSet as) {
-        Collection<Object> attrs = new LinkedList<Object>();
+        Collection<Object> attrs = new LinkedList<>();
 
         for (Enumeration<?> e = as.getAttributeNames(); e.hasMoreElements(); ) {
             Object key = e.nextElement();
@@ -205,8 +205,9 @@ private static AttributeSet adjustAttributes(AttributeSet as) {
         return AttributesUtilities.createImmutable(attrs.toArray());
     }
 
-    final class UnusedTooltipResolver implements HighlightAttributeValue<String> {
+    private final class UnusedTooltipResolver implements HighlightAttributeValue<String> {
 
+        @Override
         public String getValue(JTextComponent component, Document document, Object attributeKey, int startOffset, final int endOffset) {
             return NbBundle.getMessage(ColoringManager.class, "LBL_UNUSED");
         }