8350212: Track source end positions of declarations that support @SuppressWarnings

Co-authored-by: Jan Lahoda <jlahoda@openjdk.org>
Reviewed-by: mcimadamore

src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Lower.java

@@ -3697,7 +3697,7 @@ public class Lower extends TreeTranslator {
                                                   vardefinit).setType(tree.var.type);
             indexDef.sym = tree.var.sym;
             JCBlock body = make.Block(0, List.of(indexDef, tree.body));
-            body.endpos = TreeInfo.endPos(tree.body);
+            body.bracePos = TreeInfo.endPos(tree.body);
             result = translate(make.
                 ForLoop(List.of(init),
                         cond,
@@ -4158,7 +4158,7 @@ public class Lower extends TreeTranslator {
                 stmtList.append(switch2);
 
                 JCBlock res = make.Block(0L, stmtList.toList());
-                res.endpos = TreeInfo.endPos(tree);
+                res.bracePos = TreeInfo.endPos(tree);
                 return res;
             } else {
                 JCSwitchExpression switch2 = make.SwitchExpression(make.Ident(dollar_tmp), lb.toList());

src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/Gen.java

@@ -500,7 +500,7 @@ public class Gen extends JCTree.Visitor {
             c.members().enter(clinit);
             List<JCStatement> clinitStats = clinitCode.toList();
             JCBlock block = make.at(clinitStats.head.pos()).Block(0, clinitStats);
-            block.endpos = TreeInfo.endPos(clinitStats.last());
+            block.bracePos = TreeInfo.endPos(clinitStats.last());
             methodDefs.append(make.MethodDef(clinit, block));
 
             if (!clinitTAs.isEmpty())
@@ -553,8 +553,8 @@ public class Gen extends JCTree.Visitor {
             // Find the super() invocation and append the given initializer code.
             TreeInfo.mapSuperCalls(md.body, supercall -> make.Block(0, initCode.prepend(supercall)));
 
-            if (md.body.endpos == Position.NOPOS)
+            if (md.body.bracePos == Position.NOPOS)
-                md.body.endpos = TreeInfo.endPos(md.body.stats.last());
+                md.body.bracePos = TreeInfo.endPos(md.body.stats.last());
 
             md.sym.appendUniqueTypeAttributes(initTAs);
         }
@@ -1121,7 +1121,7 @@ public class Gen extends JCTree.Visitor {
         genStats(tree.stats, localEnv);
         // End the scope of all block-local variables in variable info.
         if (!env.tree.hasTag(METHODDEF)) {
-            code.statBegin(tree.endpos);
+            code.statBegin(tree.bracePos);
             code.endScopes(limit);
             code.pendingStatPos = Position.NOPOS;
         }

src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java

@@ -231,8 +231,8 @@ public class JavacParser implements Parser {
 
     protected AbstractEndPosTable newEndPosTable(boolean keepEndPositions) {
         return  keepEndPositions
-                ? new SimpleEndPosTable(this)
+                ? new SimpleEndPosTable()
-                : new EmptyEndPosTable(this);
+                : new MinimalEndPosTable();
     }
 
     protected DocCommentTable newDocCommentTable(boolean keepDocComments, ParserFactory fac) {
@@ -633,12 +633,14 @@ public class JavacParser implements Parser {
      *
      *  @param tree   The tree to be used as index in the hashtable
      *  @param dc     The doc comment to associate with the tree, or null.
+     *  @return {@code tree}
      */
-    protected void attach(JCTree tree, Comment dc) {
+    protected <T extends JCTree> T attach(T tree, Comment dc) {
         if (keepDocComments && dc != null) {
             docComments.putComment(tree, dc);
         }
         reportDanglingComments(tree, dc);
+        return tree;
     }
 
     /** Reports all dangling comments associated with the
@@ -702,16 +704,35 @@ public class JavacParser implements Parser {
         endPosTable.setErrorEndPos(errPos);
     }
 
-    protected void storeEnd(JCTree tree, int endpos) {
+    /**
-        endPosTable.storeEnd(tree, endpos);
+     * Store ending position for a tree, the value of which is the greater of
+     * last error position in {@link #endPosTable} and the given ending position.
+     * @param tree tree node
+     * @param endpos the ending position to associate with {@code tree}
+     * @return {@code tree}
+     */
+    protected <T extends JCTree> T storeEnd(T tree, int endpos) {
+        return endPosTable.storeEnd(tree, endpos);
     }
 
-    protected <T extends JCTree> T to(T t) {
+    /**
-        return endPosTable.to(t);
+     * Store current token's ending position for a tree, the value of which
+     * will be the greater of last error position in {@link #endPosTable}
+     * and the ending position of the current token.
+     * @param tree tree node
+     */
+    protected <T extends JCTree> T to(T tree) {
+        return storeEnd(tree, token.endPos);
     }
 
-    protected <T extends JCTree> T toP(T t) {
+    /**
-        return endPosTable.toP(t);
+     * Store current token's ending position for a tree, the value of which
+     * will be the greater of last error position in {@link #endPosTable}
+     * and the ending position of the previous token.
+     * @param tree tree node
+     */
+    protected <T extends JCTree> T toP(T tree) {
+        return storeEnd(tree, S.prevToken().endPos);
     }
 
     /** Get the start position for a tree node.  The start position is
@@ -1741,7 +1762,7 @@ public class JavacParser implements Parser {
                 case RBRACE: case EOF:
                     JCSwitchExpression e = to(F.at(switchPos).SwitchExpression(selector,
                                                                                cases.toList()));
-                    e.endpos = token.pos;
+                    e.bracePos = token.pos;
                     accept(RBRACE);
                     return e;
                 default:
@@ -2819,9 +2840,9 @@ public class JavacParser implements Parser {
             syntaxError(token.pos, Errors.Orphaned(token.kind));
             switchBlockStatementGroups();
         }
-        // the Block node has a field "endpos" for first char of last token, which is
+        // the Block node has a field "bracePos" for first char of last token, which is
         // usually but not necessarily the last char of the last token.
-        t.endpos = token.pos;
+        t.bracePos = token.pos;
         accept(RBRACE);
         return toP(t);
     }
@@ -3142,7 +3163,7 @@ public class JavacParser implements Parser {
             accept(LBRACE);
             List<JCCase> cases = switchBlockStatementGroups();
             JCSwitch t = to(F.at(pos).Switch(selector, cases));
-            t.endpos = token.endPos;
+            t.bracePos = token.endPos;
             accept(RBRACE);
             return t;
         }
@@ -3658,9 +3679,7 @@ public class JavacParser implements Parser {
         } else {
             throw new AssertionError("Unhandled annotation kind: " + kind);
         }
-
+        return toP(ann);
-        storeEnd(ann, S.prevToken().endPos);
-        return ann;
     }
 
     List<JCExpression> annotationFieldValuesOpt() {
@@ -3835,9 +3854,8 @@ public class JavacParser implements Parser {
             }
         }
         JCVariableDecl result = toP(F.at(pos).VarDef(mods, name, type, init, declaredUsingVar));
-        attach(result, dc);
         result.startPos = startPos;
-        return result;
+        return attach(result, dc);
     }
 
     Name restrictedTypeName(JCExpression e, boolean shouldWarn) {
@@ -4131,7 +4149,7 @@ public class JavacParser implements Parser {
                 firstTypeDecl = false;
             }
         }
-        List<JCTree> topLevelDefs = isImplicitClass ?  constructImplicitClass(defs.toList()) : defs.toList();
+        List<JCTree> topLevelDefs = isImplicitClass ? constructImplicitClass(defs.toList(), S.prevToken().endPos) : defs.toList();
         JCTree.JCCompilationUnit toplevel = F.at(firstToken.pos).TopLevel(topLevelDefs);
         if (!consumedToplevelDoc)
             attach(toplevel, firstToken.docComment());
@@ -4141,13 +4159,12 @@ public class JavacParser implements Parser {
             toplevel.docComments = docComments;
         if (keepLineMap)
             toplevel.lineMap = S.getLineMap();
-        this.endPosTable.setParser(null); // remove reference to parser
         toplevel.endPositions = this.endPosTable;
         return toplevel;
     }
 
     // Restructure top level to be an implicitly declared class.
-    private List<JCTree> constructImplicitClass(List<JCTree> origDefs) {
+    private List<JCTree> constructImplicitClass(List<JCTree> origDefs, int endPos) {
         ListBuffer<JCTree> topDefs = new ListBuffer<>();
         ListBuffer<JCTree> defs = new ListBuffer<>();
 
@@ -4177,6 +4194,7 @@ public class JavacParser implements Parser {
         JCClassDecl implicit = F.at(primaryPos).ClassDef(
                 implicitMods, name, List.nil(), null, List.nil(), List.nil(),
                 defs.toList());
+        storeEnd(implicit, endPos);
         topDefs.append(implicit);
         return topDefs.toList();
     }
@@ -4192,11 +4210,12 @@ public class JavacParser implements Parser {
         accept(LBRACE);
         directives = moduleDirectiveList();
         accept(RBRACE);
+        int endPos = S.prevToken().endPos;
         accept(EOF);
 
-        JCModuleDecl result = toP(F.at(pos).ModuleDef(mods, kind, name, directives));
+        JCModuleDecl result = F.at(pos).ModuleDef(mods, kind, name, directives);
-        attach(result, dc);
+        storeEnd(result, endPos);
-        return result;
+        return attach(result, dc);
     }
 
     List<JCDirective> moduleDirectiveList() {
@@ -4386,8 +4405,7 @@ public class JavacParser implements Parser {
         List<JCTree> defs = classInterfaceOrRecordBody(name, false, false);
         JCClassDecl result = toP(F.at(pos).ClassDef(
             mods, name, typarams, extending, implementing, permitting, defs));
-        attach(result, dc);
+        return attach(result, dc);
-        return result;
     }
 
     protected JCClassDecl recordDeclaration(JCModifiers mods, Comment dc) {
@@ -4434,8 +4452,7 @@ public class JavacParser implements Parser {
             defs = defs.prepend(field);
         }
         JCClassDecl result = toP(F.at(pos).ClassDef(mods, name, typarams, null, implementing, defs));
-        attach(result, dc);
+        return attach(result, dc);
-        return result;
     }
 
     Name typeName() {
@@ -4474,8 +4491,7 @@ public class JavacParser implements Parser {
         defs = classInterfaceOrRecordBody(name, true, false);
         JCClassDecl result = toP(F.at(pos).ClassDef(
             mods, name, typarams, null, extending, permitting, defs));
-        attach(result, dc);
+        return attach(result, dc);
-        return result;
     }
 
     List<JCExpression> permitsClause(JCModifiers mods, String classOrInterface) {
@@ -4522,8 +4538,7 @@ public class JavacParser implements Parser {
         JCClassDecl result = toP(F.at(pos).
             ClassDef(mods, name, List.nil(),
                      null, implementing, defs));
-        attach(result, dc);
+        return attach(result, dc);
-        return result;
     }
 
     /** EnumBody = "{" { EnumeratorDeclarationList } [","]
@@ -4664,8 +4679,7 @@ public class JavacParser implements Parser {
             storeEnd(create, S.prevToken().endPos);
         ident = F.at(identPos).Ident(enumName);
         JCTree result = toP(F.at(pos).VarDef(mods, name, ident, create));
-        attach(result, dc);
+        return attach(result, dc);
-        return result;
     }
 
     /** TypeList = Type {"," Type}
@@ -5097,8 +5111,7 @@ public class JavacParser implements Parser {
                     toP(F.at(pos).MethodDef(mods, name, type, typarams,
                                             receiverParam, params, thrown,
                                             body, defaultValue));
-            attach(result, dc);
+            return attach(result, dc);
-            return result;
         } finally {
             this.receiverParam = prevReceiverParam;
         }
@@ -5395,8 +5408,7 @@ public class JavacParser implements Parser {
             return mostInnerTypeToReturn;
         } else {
             mostInnerArrayType.elemtype = mostInnerTypeToReturn;
-            storeEnd(type, origEndPos);
+            return storeEnd(type, origEndPos);
-            return type;
         }
     }
 
@@ -5622,121 +5634,69 @@ public class JavacParser implements Parser {
         }
     }
 
-    /*
+    /**
-     * a functional source tree and end position mappings
+     * A straightforward {@link EndPosTable} implementation.
      */
     protected static class SimpleEndPosTable extends AbstractEndPosTable {
 
-        private final IntHashTable endPosMap;
+        private final IntHashTable endPosMap = new IntHashTable();
 
-        SimpleEndPosTable(JavacParser parser) {
+        @Override
-            super(parser);
+        public <T extends JCTree> T storeEnd(T tree, int endpos) {
-            endPosMap = new IntHashTable();
+            endPosMap.put(tree, Math.max(endpos, errorEndPos));
-        }
+            return tree;
-
-        public void storeEnd(JCTree tree, int endpos) {
-            endPosMap.put(tree, errorEndPos > endpos ? errorEndPos : endpos);
-        }
-
-        protected <T extends JCTree> T to(T t) {
-            storeEnd(t, parser.token.endPos);
-            return t;
-        }
-
-        protected <T extends JCTree> T toP(T t) {
-            storeEnd(t, parser.S.prevToken().endPos);
-            return t;
         }
 
+        @Override
         public int getEndPos(JCTree tree) {
             int value = endPosMap.get(tree);
             // As long as Position.NOPOS==-1, this just returns value.
             return (value == -1) ? Position.NOPOS : value;
         }
 
+        @Override
         public int replaceTree(JCTree oldTree, JCTree newTree) {
             int pos = endPosMap.remove(oldTree);
-            if (pos != -1) {
+            if (pos != -1 && newTree != null) {
                 storeEnd(newTree, pos);
+            }
             return pos;
         }
-            return Position.NOPOS;
-        }
     }
 
-    /*
+    /**
-     * a default skeletal implementation without any mapping overhead.
+     * A minimal implementation that only stores what's required.
      */
-    protected static class EmptyEndPosTable extends AbstractEndPosTable {
+    protected static class MinimalEndPosTable extends SimpleEndPosTable {
 
-        EmptyEndPosTable(JavacParser parser) {
+        @Override
-            super(parser);
+        public <T extends JCTree> T storeEnd(T tree, int endpos) {
+            switch (tree.getTag()) {
+            case MODULEDEF:
+            case PACKAGEDEF:
+            case CLASSDEF:
+            case METHODDEF:
+            case VARDEF:
+                break;
+            default:
+                return tree;
             }
-
+            return super.storeEnd(tree, endpos);
-        public void storeEnd(JCTree tree, int endpos) { /* empty */ }
-
-        protected <T extends JCTree> T to(T t) {
-            return t;
         }
-
-        protected <T extends JCTree> T toP(T t) {
-            return t;
-        }
-
-        public int getEndPos(JCTree tree) {
-            return Position.NOPOS;
-        }
-
-        public int replaceTree(JCTree oldTree, JCTree newTree) {
-            return Position.NOPOS;
-        }
-
     }
 
     protected abstract static class AbstractEndPosTable implements EndPosTable {
-        /**
-         * The current parser.
-         */
-        protected JavacParser parser;
 
         /**
          * Store the last error position.
          */
         public int errorEndPos = Position.NOPOS;
 
-        public AbstractEndPosTable(JavacParser parser) {
+        @Override
-            this.parser = parser;
-        }
-
-        /**
-         * Store current token's ending position for a tree, the value of which
-         * will be the greater of last error position and the ending position of
-         * the current token.
-         * @param t The tree.
-         */
-        protected abstract <T extends JCTree> T to(T t);
-
-        /**
-         * Store current token's ending position for a tree, the value of which
-         * will be the greater of last error position and the ending position of
-         * the previous token.
-         * @param t The tree.
-         */
-        protected abstract <T extends JCTree> T toP(T t);
-
-        /**
-         * Set the error position during the parsing phases, the value of which
-         * will be set only if it is greater than the last stored error position.
-         * @param errPos The error position
-         */
         public void setErrorEndPos(int errPos) {
             if (errPos > errorEndPos) {
                 errorEndPos = errPos;
             }
         }
-
-        public void setParser(JavacParser parser) {
-            this.parser = parser;
-        }
     }
 }

src/jdk.compiler/share/classes/com/sun/tools/javac/tree/EndPosTable.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,8 +25,21 @@
 
 package com.sun.tools.javac.tree;
 
+import com.sun.tools.javac.util.Position;
+
 /**
  * Specifies the methods to access a mappings of syntax trees to end positions.
+ *
+ * <p>
+ * Implementations <b>must</b> store end positions for at least these node types:
+ * <ul>
+ *  <li>{@link JCTree.JCModuleDecl}
+ *  <li>{@link JCTree.JCPackageDecl}
+ *  <li>{@link JCTree.JCClassDecl}
+ *  <li>{@link JCTree.JCMethodDecl}
+ *  <li>{@link JCTree.JCVariableDecl}
+ * </ul>
+ *
  * <p><b>This is NOT part of any supported API.
  * If you write code that depends on this, you do so at your own
  * risk.  This code and its internal interfaces are subject to change
@@ -40,23 +53,31 @@ public interface EndPosTable {
      * @param tree JCTree
      * @return position of the source tree or Positions.NOPOS for non-existent mapping
      */
-    public int getEndPos(JCTree tree);
+    int getEndPos(JCTree tree);
 
     /**
      * Store ending position for a tree, the value of which is the greater of
      * last error position and the given ending position.
      * @param tree The tree.
      * @param endpos The ending position to associate with the tree.
+     * @return the {@code tree}
      */
-    public abstract void storeEnd(JCTree tree, int endpos);
+    <T extends JCTree> T storeEnd(T tree, int endpos);
+
+    /**
+     * Set the error position during the parsing phases, the value of which
+     * will be set only if it is greater than the last stored error position.
+     * @param errPos The error position
+     */
+    void setErrorEndPos(int errPos);
 
     /**
      * Give an old tree and a new tree, the old tree will be replaced with
      * the new tree, the position of the new tree will be that of the old
      * tree.
      * @param oldtree a JCTree to be replaced
-     * @param newtree a JCTree to be replaced with
+     * @param newtree a JCTree to be replaced with, or null to just remove {@code oldtree}
      * @return position of the old tree or Positions.NOPOS for non-existent mapping
      */
-    public int replaceTree(JCTree oldtree, JCTree newtree);
+    int replaceTree(JCTree oldtree, JCTree newtree);
 }

src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1121,7 +1121,7 @@ public abstract class JCTree implements Tree, Cloneable, DiagnosticPosition {
         /** statements */
         public List<JCStatement> stats;
         /** Position of closing brace, optional. */
-        public int endpos = Position.NOPOS;
+        public int bracePos = Position.NOPOS;
         /** If this block contains record pattern, it is necessary to catch
          *  exceptions from the deconstructors and wrap them.
          * The {@code patternMatchingCatch} keeps the list of the deconstructor
@@ -1330,7 +1330,7 @@ public abstract class JCTree implements Tree, Cloneable, DiagnosticPosition {
         public JCExpression selector;
         public List<JCCase> cases;
         /** Position of closing brace, optional. */
-        public int endpos = Position.NOPOS;
+        public int bracePos = Position.NOPOS;
         public boolean hasUnconditionalPattern;
         public boolean isExhaustive;
         public boolean patternSwitch;
@@ -1430,7 +1430,7 @@ public abstract class JCTree implements Tree, Cloneable, DiagnosticPosition {
         public JCExpression selector;
         public List<JCCase> cases;
         /** Position of closing brace, optional. */
-        public int endpos = Position.NOPOS;
+        public int bracePos = Position.NOPOS;
         public boolean hasUnconditionalPattern;
         public boolean isExhaustive;
         public boolean patternSwitch;

src/jdk.compiler/share/classes/com/sun/tools/javac/tree/TreeInfo.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -500,12 +500,12 @@ public class TreeInfo {
             return tree.pos;
     }
 
-    /** The end position of given tree, if it is a block with
+    /** The closing brace position of given tree, if it is a block with
-     *  defined endpos.
+     *  defined bracePos.
      */
     public static int endPos(JCTree tree) {
-        if (tree.hasTag(BLOCK) && ((JCBlock) tree).endpos != Position.NOPOS)
+        if (tree.hasTag(BLOCK) && ((JCBlock) tree).bracePos != Position.NOPOS)
-            return ((JCBlock) tree).endpos;
+            return ((JCBlock) tree).bracePos;
         else if (tree.hasTag(SYNCHRONIZED))
             return endPos(((JCSynchronized) tree).body);
         else if (tree.hasTag(TRY)) {
@@ -513,11 +513,11 @@ public class TreeInfo {
             return endPos((t.finalizer != null) ? t.finalizer
                           : (t.catchers.nonEmpty() ? t.catchers.last().body : t.body));
         } else if (tree.hasTag(SWITCH) &&
-                   ((JCSwitch) tree).endpos != Position.NOPOS) {
+                   ((JCSwitch) tree).bracePos != Position.NOPOS) {
-            return ((JCSwitch) tree).endpos;
+            return ((JCSwitch) tree).bracePos;
         } else if (tree.hasTag(SWITCH_EXPRESSION) &&
-                   ((JCSwitchExpression) tree).endpos != Position.NOPOS) {
+                   ((JCSwitchExpression) tree).bracePos != Position.NOPOS) {
-            return ((JCSwitchExpression) tree).endpos;
+            return ((JCSwitchExpression) tree).bracePos;
         } else
             return tree.pos;
     }
@@ -646,11 +646,6 @@ public class TreeInfo {
         if (tree == null)
             return Position.NOPOS;
 
-        if (endPosTable == null) {
-            // fall back on limited info in the tree
-            return endPos(tree);
-        }
-
         int mapPos = endPosTable.getEndPos(tree);
         if (mapPos != Position.NOPOS)
             return mapPos;
@@ -731,8 +726,8 @@ public class TreeInfo {
 
 
     /** A DiagnosticPosition with the preferred position set to the
-     *  end position of given tree, if it is a block with
+     *  closing brace position of given tree, if it is a block with
-     *  defined endpos.
+     *  defined closing brace position.
      */
     public static DiagnosticPosition diagEndPos(final JCTree tree) {
         final int endPos = TreeInfo.endPos(tree);

src/jdk.jshell/share/classes/jdk/jshell/ReplParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -141,7 +141,6 @@ class ReplParser extends JavacParser {
             storeEnd(toplevel, S.prevToken().endPos);
         }
         toplevel.lineMap = S.getLineMap();
-        this.endPosTable.setParser(null); // remove reference to parser
         toplevel.endPositions = this.endPosTable;
         return toplevel;
     }

test/langtools/tools/javac/T8180660/MissingLNTEntryForFinalizerTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -151,7 +151,7 @@ public class MissingLNTEntryForFinalizerTest {
             com.sun.tools.javac.code.Type result = super.attribStat(tree, env);
             if (tree.hasTag(TRY)) {
                 JCTry tryTree = (JCTry)tree;
-                lineNumber = env.toplevel.lineMap.getLineNumber(tryTree.finalizer.endpos);
+                lineNumber = env.toplevel.lineMap.getLineNumber(tryTree.finalizer.bracePos);
             }
             return result;
         }

test/langtools/tools/javac/parser/DeclarationEndPositions.java

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8350212
+ * @summary Verify ending source positions are calculated for declarations supporting SuppressWarnings
+ * @modules jdk.compiler/com.sun.tools.javac.tree
+ * @run main DeclarationEndPositions
+ */
+
+import com.sun.source.tree.CompilationUnitTree;
+import com.sun.source.tree.Tree;
+import com.sun.source.tree.Tree;
+import com.sun.source.util.JavacTask;
+import com.sun.source.util.TreeScanner;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.JCTree.*;
+import com.sun.tools.javac.tree.TreeInfo;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.List;
+
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+import javax.tools.ToolProvider;
+
+public class DeclarationEndPositions {
+
+    public static void checkEndPosition(Class<? extends JCTree> nodeType, String input, String marker) throws IOException {
+
+        // Create source
+        var source = new SimpleJavaFileObject(URI.create("file://T.java"), JavaFileObject.Kind.SOURCE) {
+            @Override
+            public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
+                return input;
+            }
+        };
+
+        // Parse source
+        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
+        JavaCompiler.CompilationTask task = compiler.getTask(null, null, null, List.of(), List.of(), List.of(source));
+        Iterable<? extends CompilationUnitTree> units = ((JavacTask)task).parse();
+
+        // Find node and check end position
+        JCTree.JCCompilationUnit unit = (JCTree.JCCompilationUnit)units.iterator().next();
+        unit.accept(new TreeScanner<Void, Void>() {
+            @Override
+            public Void scan(Tree node, Void aVoid) {
+                if (nodeType.isInstance(node)) {
+                    JCTree tree = (JCTree)node;
+                    int actual = TreeInfo.getEndPos(tree, unit.endPositions);
+                    int expected = marker.indexOf('^') + 1;
+                    if (actual != expected) {
+                        throw new AssertionError(String.format(
+                          "wrong end pos %d != %d for \"%s\" @ %d", actual, expected, input, tree.pos));
+                    }
+                }
+                return super.scan(node, aVoid);
+            }
+        }, null);
+    }
+
+    public static void main(String... args) throws Exception {
+
+        // JCModuleDecl
+        checkEndPosition(JCModuleDecl.class,
+           "/* comment */ module fred { /* comment */ } /* comment */",
+           "                                          ^              ");
+
+        // JCPackageDecl
+        checkEndPosition(JCPackageDecl.class,
+           "/* comment */ package fred; /* comment */",
+           "                          ^              ");
+
+        // JCClassDecl
+        checkEndPosition(JCClassDecl.class,
+           "/* comment */ class Fred { /* comment */ } /* comment */",
+           "                                         ^              ");
+
+        // JCMethodDecl
+        checkEndPosition(JCMethodDecl.class,
+           "/* comment */ class Fred { void m() { /* comment */ } } /* comment */",
+           "                                                    ^                ");
+
+        // JCVariableDecl
+        checkEndPosition(JCVariableDecl.class,
+           "/* comment */ class Fred { int x; } /* comment */",
+           "                                ^                ");
+        checkEndPosition(JCVariableDecl.class,
+           "/* comment */ class Fred { int x = 123; } /* comment */",
+           "                                      ^                ");
+        checkEndPosition(JCVariableDecl.class,
+           "/* comment */ class A { try {} catch (Error err) {} } /* comment */",
+           "                                              ^                    ");
+    }
+}

test/langtools/tools/javac/parser/JavacParserTest.java

@@ -2298,10 +2298,9 @@ public class JavacParserTest extends TestCase {
 
     @Test //JDK-8310326
     void testUnnamedClassPositions() throws IOException {
-        String code = """
+        //             0         1         2
-                      void main() {
+        //             012345678901234567890
-                      }
+        String code = "void main() { }";
-                      """;
         DiagnosticCollector<JavaFileObject> coll =
                 new DiagnosticCollector<>();
         JavacTaskImpl ct = (JavacTaskImpl) tool.getTask(null, fm, coll, null,
@@ -2313,7 +2312,7 @@ public class JavacParserTest extends TestCase {
             @Override
             public Void visitClass(ClassTree node, Void p) {
                 assertEquals("Wrong start position", 0, sp.getStartPosition(cut, node));
-                assertEquals("Wrong end position", -1, sp.getEndPosition(cut, node));
+                assertEquals("Wrong end position", 15, sp.getEndPosition(cut, node));
                 assertEquals("Wrong modifiers start position", -1, sp.getStartPosition(cut, node.getModifiers()));
                 assertEquals("Wrong modifiers end position", -1, sp.getEndPosition(cut, node.getModifiers()));
                 return super.visitClass(node, p);

test/langtools/tools/javac/parser/extend/TrialParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -139,7 +139,6 @@ class TrialParser extends JavacParser {
             storeEnd(toplevel, S.prevToken().endPos);
         }
         toplevel.lineMap = S.getLineMap();
-        this.endPosTable.setParser(null); // remove reference to parser
         toplevel.endPositions = this.endPosTable;
         return toplevel;
     }