diff --git a/package.json b/package.json
index bcf7b5dfcbf..8a3ac46d41a 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "ruling-parametrized": "node tools/prepare-ruling.js && SONAR_RULING_SETTINGS=../settings.js jest ./packages/ruling/tests/projects/*.ruling.test.ts",
     "ruling-sync": "rsync -avh packages/ruling/tests/actual/jsts/ its/ruling/src/test/expected/jsts/ --delete",
     "update-ruling-data": "mvn -f sonar-plugin/sonar-javascript-plugin/pom.xml compile && ts-node packages/ruling/tests/tools/parseRulesData.ts",
-    "bridge:compile": "tsc -b packages profiling && npm run _:bridge:copy-protofile",
+    "bridge:compile": "tsc -b packages profiling && npm run _:bridge:copy-protofiles",
     "bridge:test": "jest --maxWorkers=8 --coverage --testPathIgnorePatterns=/packages/ruling/tests/",
     "bridge:build": "npm run bridge:build:fast && npm run bridge:test",
     "bridge:build:fast": "npm ci && cd packages/jsts/src/rules && npm ci && cd ../../../../ && npm run _:bridge:clear && npm run bridge:compile",
@@ -27,7 +27,7 @@
     "prepare": "husky install",
     "precommit": "pretty-quick --staged",
     "count-rules": "node tools/count-rules.js",
-    "_:bridge:copy-protofile": "node tools/estree/copy-to-lib.js",
+    "_:bridge:copy-protofiles": "cpy --flat packages/jsts/src/parsers/estree.proto sonar-plugin/bridge/src/main/protobuf && cpy --flat packages/jsts/src/parsers/estree.proto lib/jsts/src/parsers",
     "_:bridge:clear": "rimraf lib/*",
     "_:plugin:prepare-bridge": "npm pack && node tools/check-distribution-filepath-length.js && npm run _:plugin:copy-bridge && npm run generate-rules-list",
     "_:plugin-fetch-node": "node tools/fetch-node/scripts/wrapper.mjs",
diff --git a/sonar-plugin/bridge/src/main/protobuf/.gitignore b/sonar-plugin/bridge/src/main/protobuf/.gitignore
new file mode 100644
index 00000000000..2176df11b3d
--- /dev/null
+++ b/sonar-plugin/bridge/src/main/protobuf/.gitignore
@@ -0,0 +1 @@
+estree.proto
\ No newline at end of file
diff --git a/sonar-plugin/bridge/src/main/protobuf/estree.proto b/sonar-plugin/bridge/src/main/protobuf/estree.proto
deleted file mode 100644
index 6a1e198f998..00000000000
--- a/sonar-plugin/bridge/src/main/protobuf/estree.proto
+++ /dev/null
@@ -1,475 +0,0 @@
-syntax = "proto3";
-// Generated for @types/estree version: 1.0.5
-// Note: this file was manually modified, to reach a working state faster.
-// We should eventually adapt the generator once we are happy with the exact structure.
-option java_package="org.sonar.plugins.javascript.bridge.protobuf";
-option java_multiple_files = true;
-
-message SourceLocation {
-  string source = 1;
-  Position start = 2;
-  Position end = 3;
-}
-message Position {
-  int32 line = 1;
-  int32 column = 2;
-}
-
-enum NodeType {
-  ProgramType = 0;
-  ExportAllDeclarationType = 1;
-  IdentifierType = 2;
-  ExportDefaultDeclarationType = 3;
-  YieldExpressionType = 4;
-  UpdateExpressionType = 5;
-  UnaryExpressionType = 6;
-  ThisExpressionType = 7;
-  TemplateLiteralType = 8;
-  TaggedTemplateExpressionType = 9;
-  SequenceExpressionType = 10;
-  ObjectExpressionType = 11;
-  SpreadElementType = 12;
-  PropertyType = 13;
-  AssignmentPatternType = 14;
-  RestElementType = 15;
-  ArrayPatternType = 16;
-  ObjectPatternType = 17;
-  PrivateIdentifierType = 18;
-  NewExpressionType = 19;
-  SuperType = 20;
-  MetaPropertyType = 21;
-  MemberExpressionType = 22;
-  LogicalExpressionType = 23;
-  ImportExpressionType = 24;
-  BlockStatementType = 25;
-  ConditionalExpressionType = 26;
-  ClassExpressionType = 27;
-  ClassBodyType = 28;
-  StaticBlockType = 29;
-  PropertyDefinitionType = 30;
-  MethodDefinitionType = 31;
-  ChainExpressionType = 32;
-  CallExpressionType = 33;
-  BinaryExpressionType = 34;
-  AwaitExpressionType = 35;
-  AssignmentExpressionType = 36;
-  ArrowFunctionExpressionType = 37;
-  ArrayExpressionType = 38;
-  ClassDeclarationType = 39;
-  FunctionDeclarationType = 40;
-  ExportNamedDeclarationType = 41;
-  ExportSpecifierType = 42;
-  VariableDeclarationType = 43;
-  VariableDeclaratorType = 44;
-  ImportDeclarationType = 45;
-  ImportNamespaceSpecifierType = 46;
-  ImportDefaultSpecifierType = 47;
-  ImportSpecifierType = 48;
-  ForOfStatementType = 49;
-  ForInStatementType = 50;
-  ForStatementType = 51;
-  DoWhileStatementType = 52;
-  WhileStatementType = 53;
-  TryStatementType = 54;
-  CatchClauseType = 55;
-  ThrowStatementType = 56;
-  SwitchStatementType = 57;
-  SwitchCaseType = 58;
-  IfStatementType = 59;
-  ContinueStatementType = 60;
-  BreakStatementType = 61;
-  LabeledStatementType = 62;
-  ReturnStatementType = 63;
-  WithStatementType = 64;
-  DebuggerStatementType = 65;
-  EmptyStatementType = 66;
-  ExpressionStatementType = 67;
-  LiteralType = 68;
-  TemplateElementType = 69;
-  FunctionExpressionType = 70;
-  UnknownNodeType = 1000;
-}
-message Node {
-  NodeType type = 1;
-  SourceLocation loc = 2;
-  oneof node {
-    Program program = 3;
-    ExportAllDeclaration exportAllDeclaration = 4;
-    Identifier identifier = 5;
-    ExportDefaultDeclaration exportDefaultDeclaration = 6;
-    YieldExpression yieldExpression = 7;
-    UpdateExpression updateExpression = 8;
-    UnaryExpression unaryExpression = 9;
-    ThisExpression thisExpression = 10;
-    TemplateLiteral templateLiteral = 11;
-    TaggedTemplateExpression taggedTemplateExpression = 12;
-    SequenceExpression sequenceExpression = 13;
-    ObjectExpression objectExpression = 14;
-    SpreadElement spreadElement = 15;
-    Property property = 16;
-    AssignmentPattern assignmentPattern = 17;
-    RestElement restElement = 18;
-    ArrayPattern arrayPattern = 19;
-    ObjectPattern objectPattern = 20;
-    PrivateIdentifier privateIdentifier = 21;
-    NewExpression newExpression = 22;
-    Super super = 23;
-    MetaProperty metaProperty = 24;
-    MemberExpression memberExpression = 25;
-    LogicalExpression logicalExpression = 26;
-    ImportExpression importExpression = 27;
-    BlockStatement blockStatement = 28;
-    ConditionalExpression conditionalExpression = 29;
-    ClassExpression classExpression = 30;
-    ClassBody classBody = 31;
-    StaticBlock staticBlock = 32;
-    PropertyDefinition propertyDefinition = 33;
-    MethodDefinition methodDefinition = 34;
-    ChainExpression chainExpression = 35;
-    CallExpression callExpression = 36;
-    BinaryExpression binaryExpression = 37;
-    AwaitExpression awaitExpression = 38;
-    AssignmentExpression assignmentExpression = 39;
-    ArrowFunctionExpression arrowFunctionExpression = 40;
-    ArrayExpression arrayExpression = 41;
-    ClassDeclaration classDeclaration = 42;
-    FunctionDeclaration functionDeclaration = 43;
-    ExportNamedDeclaration exportNamedDeclaration = 44;
-    ExportSpecifier exportSpecifier = 45;
-    VariableDeclaration variableDeclaration = 46;
-    VariableDeclarator variableDeclarator = 47;
-    ImportDeclaration importDeclaration = 48;
-    ImportNamespaceSpecifier importNamespaceSpecifier = 49;
-    ImportDefaultSpecifier importDefaultSpecifier = 50;
-    ImportSpecifier importSpecifier = 51;
-    ForOfStatement forOfStatement = 52;
-    ForInStatement forInStatement = 53;
-    ForStatement forStatement = 54;
-    DoWhileStatement doWhileStatement = 55;
-    WhileStatement whileStatement = 56;
-    TryStatement tryStatement = 57;
-    CatchClause catchClause = 58;
-    ThrowStatement throwStatement = 59;
-    SwitchStatement switchStatement = 60;
-    SwitchCase switchCase = 61;
-    IfStatement ifStatement = 62;
-    ContinueStatement continueStatement = 63;
-    BreakStatement breakStatement = 64;
-    LabeledStatement labeledStatement = 65;
-    ReturnStatement returnStatement = 66;
-    WithStatement withStatement = 67;
-    DebuggerStatement debuggerStatement = 68;
-    EmptyStatement emptyStatement = 69;
-    ExpressionStatement expressionStatement = 70;
-    Literal literal = 71;
-    TemplateElement templateElement = 72;
-    FunctionExpression functionExpression = 73;
-    UnknownNode unknownNode = 1000;
-  }
-}
-message Program {
-  string sourceType = 1;
-  repeated Node body = 2;
-}
-message ExportAllDeclaration {
-  optional Node exported = 1;
-  Node source = 2;
-}
-message Literal {
-  string raw = 1;
-  optional string bigint = 2;
-  optional string pattern = 3;
-  optional string flags = 4;
-  oneof value {
-    string valueString = 5;
-    bool valueBoolean = 6;
-    int32 valueNumber = 7;
-  }
-}
-message Identifier {
-  string name = 1;
-}
-message ExportDefaultDeclaration {
-  Node declaration = 1;
-}
-message YieldExpression {
-  optional Node argument = 1;
-  bool delegate = 2;
-}
-message UpdateExpression {
-  string operator = 1;
-  Node argument = 2;
-  bool prefix = 3;
-}
-message UnaryExpression {
-  string operator = 1;
-  bool prefix = 2;
-  Node argument = 3;
-}
-message ThisExpression {
-}
-message TemplateLiteral {
-  repeated Node quasis = 1;
-  repeated Node expressions = 2;
-}
-message TaggedTemplateExpression {
-  Node tag = 1;
-  Node quasi = 2;
-}
-message SequenceExpression {
-  repeated Node expressions = 1;
-}
-message ObjectExpression {
-  repeated Node properties = 1;
-}
-message SpreadElement {
-  Node argument = 1;
-}
-message Property {
-  Node key = 1;
-  Node value = 2;
-  string kind = 3;
-  bool method = 4;
-  bool shorthand = 5;
-  bool computed = 6;
-}
-message AssignmentPattern {
-  Node left = 1;
-  Node right = 2;
-}
-message RestElement {
-  Node argument = 1;
-}
-message ArrayPattern {
-  repeated ArrayElement elements = 1;
-}
-message ObjectPattern {
-  repeated Node properties = 1;
-}
-message PrivateIdentifier {
-  string name = 1;
-}
-message NewExpression {
-  Node callee = 1;
-  repeated Node arguments = 2;
-}
-message Super {
-}
-message MetaProperty {
-  Node meta = 1;
-  Node property = 2;
-}
-message MemberExpression {
-  Node object = 1;
-  Node property = 2;
-  bool computed = 3;
-  bool optional = 4;
-}
-message LogicalExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message ImportExpression {
-  Node source = 1;
-}
-message BlockStatement {
-  repeated Node body = 1;
-}
-message ConditionalExpression {
-  Node test = 1;
-  Node alternate = 2;
-  Node consequent = 3;
-}
-message ClassExpression {
-  optional Node id = 1;
-  optional Node superClass = 2;
-  Node body = 3;
-}
-message ClassBody {
-  repeated Node body = 1;
-}
-message StaticBlock {
-  repeated Node body = 1;
-}
-message PropertyDefinition {
-  Node key = 1;
-  optional Node value = 2;
-  bool computed = 3;
-  bool static = 4;
-}
-message MethodDefinition {
-  Node key = 1;
-  Node value = 2;
-  string kind = 3;
-  bool computed = 4;
-  bool static = 5;
-}
-message ChainExpression {
-  Node expression = 1;
-}
-message CallExpression {
-  bool optional = 1;
-  Node callee = 2;
-  repeated Node arguments = 3;
-}
-message BinaryExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message AwaitExpression {
-  Node argument = 1;
-}
-message AssignmentExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message ArrowFunctionExpression {
-  bool expression = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-message ArrayExpression {
-  repeated ArrayElement elements = 1;
-}
-message ArrayElement {
-  optional Node element = 1;
-}
-message ClassDeclaration {
-  optional Node id = 1;
-  optional Node superClass = 2;
-  Node body = 3;
-}
-message FunctionDeclaration {
-  Node id = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-message ExportNamedDeclaration {
-  optional Node declaration = 1;
-  repeated Node specifiers = 2;
-  optional Node source = 3;
-}
-message ExportSpecifier {
-  Node exported = 1;
-  Node local = 2;
-}
-message VariableDeclaration {
-  repeated Node declarations = 1;
-  string kind = 2;
-}
-message VariableDeclarator {
-  Node id = 1;
-  optional Node init = 2;
-}
-message ImportDeclaration {
-  repeated Node specifiers = 1;
-  Node source = 2;
-}
-message ImportNamespaceSpecifier {
-  Node local = 1;
-}
-message ImportDefaultSpecifier {
-  Node local = 1;
-}
-message ImportSpecifier {
-  Node imported = 1;
-  Node local = 2;
-}
-message ForOfStatement {
-  bool await = 1;
-  Node left = 2;
-  Node right = 3;
-  Node body = 4;
-}
-message ForInStatement {
-  Node left = 1;
-  Node right = 2;
-  Node body = 3;
-}
-message ForStatement {
-  optional Node init = 1;
-  optional Node test = 2;
-  optional Node update = 3;
-  Node body = 4;
-}
-message DoWhileStatement {
-  Node body = 1;
-  Node test = 2;
-}
-message WhileStatement {
-  Node test = 1;
-  Node body = 2;
-}
-message TryStatement {
-  Node block = 1;
-  optional Node handler = 2;
-  optional Node finalizer = 3;
-}
-message CatchClause {
-  optional Node param = 1;
-  Node body = 2;
-}
-message ThrowStatement {
-  Node argument = 1;
-}
-message SwitchStatement {
-  Node discriminant = 1;
-  repeated Node cases = 2;
-}
-message SwitchCase {
-  optional Node test = 1;
-  repeated Node consequent = 2;
-}
-message IfStatement {
-  Node test = 1;
-  Node consequent = 2;
-  optional Node alternate = 3;
-}
-message ContinueStatement {
-  optional Node label = 1;
-}
-message BreakStatement {
-  optional Node label = 1;
-}
-message LabeledStatement {
-  Node label = 1;
-  Node body = 2;
-}
-message ReturnStatement {
-  optional Node argument = 1;
-}
-message WithStatement {
-  Node object = 1;
-  Node body = 2;
-}
-message DebuggerStatement {
-}
-message EmptyStatement {
-}
-message ExpressionStatement {
-  Node expression = 1;
-  optional string directive = 2;
-}
-message TemplateElement {
-  bool tail = 1;
-  optional string cooked = 2;
-  string raw = 3;
-}
-message FunctionExpression {
-  optional Node id = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-
-message UnknownNode {
-  string rawType = 1;
-}
diff --git a/tools/estree/copy-to-lib.js b/tools/estree/copy-to-lib.js
deleted file mode 100644
index a9242271c35..00000000000
--- a/tools/estree/copy-to-lib.js
+++ /dev/null
@@ -1,11 +0,0 @@
-const fs = require('node:fs');
-const path = require('node:path');
-
-fs.copyFileSync(
-  path.join(__dirname, 'output', 'estree.proto'),
-  path.join(__dirname, '..', '..', 'lib', 'jsts', 'src', 'parsers', 'estree.proto'),
-);
-fs.copyFileSync(
-  path.join(__dirname, 'output', 'estree.proto'),
-  path.join(__dirname, '..', '..', 'packages', 'jsts', 'src', 'parsers', 'estree.proto'),
-);
diff --git a/tools/estree/generate-java-ast.ts b/tools/estree/generate-java-ast.ts
deleted file mode 100644
index 71d9fd363e9..00000000000
--- a/tools/estree/generate-java-ast.ts
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * SonarQube JavaScript Plugin
- * Copyright (C) 2011-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-import fs from 'node:fs';
-import {
-  ArrayLikeFieldValue,
-  ESTreeNode,
-  NodeField,
-  NodeFieldValue,
-  UnionFieldValue,
-} from './get-estree-nodes';
-
-const HEADER = `/*
- * SonarQube JavaScript Plugin
- * Copyright (C) 2011-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-`;
-
-const NODE_INTERFACE = `public sealed interface Node {    
-    Location loc();
-  }
-  
-  public record Position(int line, int column) {}
-  public record Location(Position start, Position end) {}
-`;
-
-const SHARED_FIELDS = ['Location loc'];
-
-const OPERATORS = `  public interface Operator {
-    String raw();
-  }
-
-  public enum UnaryOperator implements Operator {
-    MINUS("-"), PLUS("+"), LOGICAL_NOT("!"), BITWISE_NOT("~"), TYPEOF("typeof"), VOID("void"), DELETE("delete");
-
-    private final String raw;
-
-    UnaryOperator(String raw) {
-      this.raw = raw;
-    }
-
-    @Override
-    public String raw() {
-      return raw;
-    }
-  }
-  
-  public enum BinaryOperator implements Operator {
-    EQUAL("=="), 
-    NOT_EQUAL("!="), 
-    STRICT_EQUAL("==="), 
-    STRICT_NOT_EQUAL("!=="), 
-    LESS_THAN("<"), 
-    LESS_THAN_OR_EQUAL("<="), 
-    GREATER_THAN(">"), 
-    GREATER_THAN_OR_EQUAL(">="), 
-    LEFT_SHIFT("<<"), 
-    RIGHT_SHIFT(">>"), 
-    UNSIGNED_RIGHT_SHIFT(">>>"), 
-    PLUS("+"), 
-    MINUS("-"), 
-    MULTIPLY("*"), 
-    DIVIDE("/"), 
-    MODULO("%"), 
-    EXPONENTIATION("**"), 
-    BITWISE_AND("&"), 
-    BITWISE_OR("|"), 
-    BITWISE_XOR("^"), 
-    IN("in"), 
-    INSTANCEOF("instanceof");
-
-    private final String raw;
-
-    BinaryOperator(String raw) {
-      this.raw = raw;
-    }
-
-    @Override
-    public String raw() {
-      return raw;
-    }
-  }
-  
-  public enum LogicalOperator implements Operator {
-    AND("&&"), OR("||"), NULLISH_COALESCING("??");
-
-    private final String raw;
-
-    LogicalOperator(String raw) {
-      this.raw = raw;
-    }
-
-    @Override
-    public String raw() {
-      return raw;
-    }
-  }
-  
-  public enum AssignmentOperator implements Operator {
-    ASSIGN("="), 
-    PLUS_ASSIGN("+="), 
-    MINUS_ASSIGN("-="), 
-    MULTIPLY_ASSIGN("*="), 
-    DIVIDE_ASSIGN("/="), 
-    MODULO_ASSIGN("%="),
-    EXPONENTIATION_ASSIGN("**="),
-    LEFT_SHIFT_ASSIGN("<<="),
-    RIGHT_SHIFT_ASSIGN(">>="),
-    UNSIGNED_RIGHT_SHIFT_ASSIGN(">>>="),
-    BITWISE_OR_ASSIGN("|="),
-    BITWISE_XOR_ASSIGN("^="),
-    BITWISE_AND_ASSIGN("&="),
-    LOGICAL_OR_ASSIGN("||="),
-    LOGICAL_AND_ASSIGN("&&="),
-    NULLISH_COALESCING_ASSIGN("??=")
-    ;
-
-    private final String raw;
-
-    AssignmentOperator(String raw) {
-      this.raw = raw;
-    }
-
-    @Override
-    public String raw() {
-      return raw;
-    }
-  }
-  
-  public enum UpdateOperator implements Operator {
-    INCREMENT("++"), DECREMENT("--");
-
-    private final String raw;
-
-    UpdateOperator(String raw) {
-      this.raw = raw;
-    }
-
-    @Override
-    public String raw() {
-      return raw;
-    }
-  }`;
-
-function isUnionNode(node: ESTreeNode) {
-  return node.fields.length === 1 && 'unionElements' in node.fields[0].fieldValue;
-}
-
-function isPrimitive(f: NodeField) {
-  const fv = f.fieldValue;
-  return 'type' in fv && ['string', 'int32', 'bool'].some(s => s === fv.type);
-}
-
-export function writeJavaClassesToDir(nodes: Record<string, ESTreeNode>, output: string) {
-  // remove operators, they are hardcoded as enums
-  [
-    'UnaryOperator',
-    'BinaryOperator',
-    'LogicalOperator',
-    'AssignmentOperator',
-    'UpdateOperator',
-  ].forEach(o => delete nodes[o]);
-
-  const entries = Object.entries(nodes).sort(([a], [b]) => (a < b ? -1 : 1));
-  const ifaces = entries.filter(([, n]) => isUnionNode(n)).map(([name]) => name);
-
-  const impl = new Map<string, string[]>();
-  ifaces
-    .filter(i => isUnionNode(nodes[i]))
-    .forEach(iface => {
-      //@ts-ignore
-      const union = nodes[iface].fields[0].fieldValue.unionElements.map(e =>
-        upperCaseFirstLetter(e.name),
-      );
-      for (const u of union) {
-        if (impl.has(u)) {
-          impl.set(u, impl.get(u)!.concat(iface));
-        } else {
-          impl.set(u, [iface]);
-        }
-      }
-    });
-
-  nodes['Literal'].fields = [
-    {
-      name: 'raw',
-      fieldValue: { type: 'string' },
-    },
-  ];
-  nodes['ChainElement'].fields = [
-    {
-      name: 'optional',
-      fieldValue: { type: 'bool' },
-    },
-  ];
-  nodes['CallExpression'].fields = [
-    {
-      name: 'callee',
-      fieldValue: { type: 'ExpressionOrSuper' }, // more precise type is Expression | Super, but we can't represent union types in Java easily
-    },
-    {
-      name: 'arguments',
-      fieldValue: { type: `List<ExpressionOrSpreadElement>` },
-    },
-  ];
-  nodes['BigIntLiteral'].fields[0].fieldValue = { type: 'BigInteger' };
-
-  const records = [];
-  const ifaceSrc: string[] = [];
-  const unionIfaces: string[] = [];
-  for (const [name, node] of entries) {
-    if (!ifaces.includes(name)) {
-      const fields = [...SHARED_FIELDS];
-      for (const field of node.fields) {
-        if (field.name === 'type') {
-          // ignore 'type' field
-          continue;
-        }
-        fields.push(`${javaType(field.fieldValue)} ${javaName(field.name)}`);
-      }
-      records.push(
-        `  public record ${name}(${fields.join(', ')}) implements ${implementsClause(impl, node)} {}`,
-      );
-    }
-  }
-
-  ifaces.forEach(iface => {
-    const ext = implementsClause(impl, nodes[iface]);
-    const fields = ifaceFields(nodes[iface]);
-    ifaceSrc.push(`  public sealed interface ${iface} extends ${ext} {\n${fields}\n  }`);
-  });
-
-  function javaType(fieldValue: NodeFieldValue): string {
-    if ('type' in fieldValue) {
-      switch (fieldValue.type) {
-        case 'string':
-          return 'String';
-        case 'int32':
-          return 'int';
-        case 'bool':
-          return 'boolean';
-        case 'BaseNodeWithoutComments':
-          return 'Node';
-      }
-      return fieldValue.type;
-    }
-    if (isArray(fieldValue)) {
-      return `List<${javaType(fieldValue.elementValue)}>`;
-    }
-    if ('unionElements' in fieldValue && !fieldValue.unionElements.some(isPrimitive)) {
-      let unionIface = fieldValue.unionElements
-        .map(e => upperCaseFirstLetter(e.name))
-        .sort()
-        .join('Or');
-      fieldValue.unionElements.forEach(e =>
-        impl.set(
-          upperCaseFirstLetter(e.name),
-          [unionIface].concat(impl.get(upperCaseFirstLetter(e.name)) || []),
-        ),
-      );
-      unionIfaces.push(unionIface);
-      return unionIface;
-    }
-    return 'Node';
-  }
-
-  function javaName(name: string) {
-    if (name === 'static') {
-      return 'isStatic';
-    }
-    return name;
-  }
-
-  function ifaceFields(node: ESTreeNode) {
-    return node.fields
-      .filter(f => !('unionElements' in f.fieldValue))
-      .map(f => `    ${javaType(f.fieldValue)} ${javaName(f.name)}();`)
-      .join('\n');
-  }
-
-  function implementsClause(impl: Map<string, string[]>, node: ESTreeNode) {
-    const ifaces = [];
-    if (impl.has(node.name)) {
-      ifaces.push(...impl.get(node.name)!);
-    } else {
-      ifaces.push('Node');
-    }
-    return unique(ifaces).join(', ');
-  }
-
-  const estree = `${HEADER}
-package org.sonar.plugins.javascript.api.estree;
-
-import java.math.BigInteger;
-import java.util.List;
-
-/**
-  This file is generated. Do not modify it manually. Look at tools/estree instead.
-  
-  This is !EXPERIMENTAL UNSUPPORTED INTERNAL API! It can be modified or removed without prior notice.   
-*/
-public class ESTree {
-
-  private ESTree() {
-    // shouldn't be instantiated, used only as a namespace
-  }
-  
-  ${NODE_INTERFACE}  
-${ifaceSrc.join('\n')}
-
-${unique(unionIfaces)
-  .map(i => `  public sealed interface ${i} extends Node {}`)
-  .join('\n')}
-        
-${records.join('\n')}
-
-${OPERATORS}
-}
-
-`;
-  fs.writeFileSync(output, estree, 'utf-8');
-}
-
-function upperCaseFirstLetter(s: string) {
-  return s.charAt(0).toUpperCase() + s.slice(1);
-}
-
-function isArray(fieldValue: NodeFieldValue): fieldValue is ArrayLikeFieldValue {
-  return 'elementValue' in fieldValue;
-}
-
-function unique<T>(arr: T[]): T[] {
-  return arr.filter((v, i, self) => self.indexOf(v) === i);
-}
diff --git a/tools/estree/generate-proto-file.ts b/tools/estree/generate-proto-file.ts
deleted file mode 100644
index 42fa01d0c2d..00000000000
--- a/tools/estree/generate-proto-file.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * SonarQube JavaScript Plugin
- * Copyright (C) 2011-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-/**
- * This script is out of date
- * We have modified the `estree.proto` file by hand
- */
-
-import fs from 'node:fs';
-import path from 'node:path';
-import { ESTreeNode, lowerCaseFirstLetter, PrimitiveFieldValue } from './get-estree-nodes';
-
-const packageJson = require(path.join('..', '..', 'package.json'));
-const typesVersion = packageJson.devDependencies['@types/estree'];
-
-export function writeMessagesToDir(messages: Record<string, ESTreeNode>, outputDir: string) {
-  // When serializing the AST to protobuf, we only need the concrete types (leafs of the AST).
-  const concreteMessages = Object.values(messages).filter(m => m.fields[0].name === 'type');
-
-  fs.writeFileSync(
-    path.join(outputDir, 'estree.proto'),
-    addPrefix(translateToProtoFormat(concreteMessages)),
-  );
-  /**
-   * Translate the messages to a protobuf file format.
-   */
-  function translateToProtoFormat(messages: ESTreeNode[]): string {
-    const lines: string[] = [];
-    lines.push('enum NodeType {');
-    let index = 0;
-    for (const message of messages) {
-      lines.push(`  ${message.name} = ${index};`);
-      index++;
-    }
-    lines.push('}');
-
-    lines.push('message Node {');
-    lines.push('  NodeType type = 1;');
-    lines.push('  SourceLocation loc = 2;');
-    index = 3;
-    lines.push('  oneof node {');
-    for (const message of messages) {
-      lines.push(`    ${message.name} ${lowerCaseFirstLetter(message.name)} = ${index};`);
-      index++;
-    }
-    lines.push('  }');
-    lines.push('}');
-
-    for (const message of Object.values(messages)) {
-      let index = 1;
-      lines.push(`message ${message.name} {`);
-      for (const field of message.fields) {
-        if (field.name === 'type') {
-          continue;
-        }
-        if ('elementValue' in field.fieldValue) {
-          lines.push(
-            `  repeated ${getType((field.fieldValue.elementValue as PrimitiveFieldValue).type)} ${field.name} = ${index};`,
-          );
-        } else if ('unionElements' in field.fieldValue) {
-          lines.push(`  Node ${field.name} = ${index};`);
-        } else {
-          lines.push(`  ${getType(field.fieldValue.type)} ${field.name} = ${index};`);
-        }
-        index++;
-      }
-      lines.push('}');
-    }
-    return lines.join('\n');
-  }
-
-  function getType(t: string) {
-    if (t === 'string' || t === 'bool' || t === 'int32' || t === 'Position') {
-      return t;
-    }
-    return 'Node';
-  }
-
-  function addPrefix(protoData: string) {
-    return `syntax = "proto3";
-// Generated for @types/estree version: ${typesVersion}
-option java_package="org.sonar.plugins.javascript.bridge.protobuf";
-option java_multiple_files = true;
-
-message SourceLocation {
-  string source = 1;
-  Position start = 2;
-  Position end = 3;
-}
-message Position {
-  int32 line = 1;
-  int32 end = 2;
-}
-
-${protoData}
-`;
-  }
-}
diff --git a/tools/estree/get-estree-nodes.ts b/tools/estree/get-estree-nodes.ts
deleted file mode 100644
index 61abf9f2353..00000000000
--- a/tools/estree/get-estree-nodes.ts
+++ /dev/null
@@ -1,304 +0,0 @@
-import ts from 'typescript';
-
-// Types representing Protobuf messages.
-export type ESTreeNode = {
-  name: string;
-  fields: NodeField[];
-};
-
-export type NodeField = {
-  name: string;
-  fieldValue: NodeFieldValue;
-};
-
-export type NodeFieldValue = PrimitiveFieldValue | ArrayLikeFieldValue | UnionFieldValue;
-
-export type PrimitiveFieldValue = {
-  type: string;
-};
-
-export type ArrayLikeFieldValue = {
-  elementValue: NodeFieldValue;
-};
-
-export type UnionFieldValue = {
-  unionElements: NodeField[];
-};
-
-export type Declaration = ts.InterfaceDeclaration | ts.TypeAliasDeclaration;
-
-export const TOP_LEVEL_NODE = 'Node';
-
-const IGNORED_MEMBERS: Set<string> = new Set([
-  // The "type" member is redundant in our context.
-  'comments',
-  'innerComments',
-]);
-
-// Some types follow a different structure than the others, instead of adding special logic for them, we create them manually.
-const HAND_WRITTEN_TYPES: Set<string> = new Set([
-  // RegExpLiteral declare RegExp, wich we can not map to Protobuf type.
-  'RegExpLiteral',
-  // TemplateElement is not following the common structure of the other nodes.
-  'TemplateElement',
-]);
-
-export function getEstreeNodes(file: ts.SourceFile) {
-  const declarations = declarationsFromFile(file);
-
-  const messages: Record<string, ESTreeNode> = {};
-
-  // Create node manually for 'RegExpLiteral' and 'TemplateElement'.
-  messages['RegExpLiteral'] = {
-    name: 'RegExpLiteral',
-    fields: [
-      { name: 'pattern', fieldValue: { type: 'string' } },
-      { name: 'flags', fieldValue: { type: 'string' } },
-      { name: 'raw', fieldValue: { type: 'string' } },
-    ],
-  };
-
-  messages['TemplateElement'] = {
-    name: 'TemplateElement',
-    fields: [
-      { name: 'tail', fieldValue: { type: 'bool' } },
-      { name: 'cooked', fieldValue: { type: 'string' } },
-      { name: 'raw', fieldValue: { type: 'string' } },
-    ],
-  };
-
-  const requestedTypes: string[] = ['Program'];
-  while (requestedTypes.length) {
-    const requestedType = requestedTypes.pop()!;
-    const declaration = declarations[requestedType];
-
-    if (!declaration) {
-      console.log('Missing declaration for', requestedType);
-      continue;
-    }
-
-    if (ts.isInterfaceDeclaration(declaration)) {
-      const typeHierarchy = extractTypeHierarchy(declaration, file, declarations).reverse();
-
-      let messageFields: NodeField[] = [];
-      for (const currentType of typeHierarchy) {
-        const currentDeclaration = declarations[currentType] as ts.InterfaceDeclaration;
-        const currentFields = getFieldValues(currentDeclaration, messageFields, file);
-        messageFields = messageFields.concat(currentFields);
-      }
-
-      messages[requestedType] = {
-        name: requestedType,
-        fields: messageFields,
-      };
-    } else if (ts.isTypeAliasDeclaration(declaration)) {
-      messages[requestedType] = {
-        name: requestedType,
-        fields: [
-          {
-            name: lowerCaseFirstLetter(declaration.name.getText(file)),
-            fieldValue: getFieldValueFromType(declaration.type),
-          },
-        ],
-      };
-    } else {
-      throw new Error(`Unexpected declaration for ${requestedType}`);
-    }
-  }
-
-  function requestType(type: string): PrimitiveFieldValue {
-    if (!(type in messages) && !requestedTypes.includes(type) && !HAND_WRITTEN_TYPES.has(type)) {
-      requestedTypes.push(type);
-    }
-
-    return { type };
-  }
-
-  function getFieldValues(
-    declaration: ts.InterfaceDeclaration,
-    messageFields: NodeField[],
-    file: ts.SourceFile,
-  ) {
-    return declaration.members
-      .filter(ts.isPropertySignature)
-      .filter(signature => signature.type && !IGNORED_MEMBERS.has(signature.name.getText(file)))
-      .filter(signature => !isAlreadyThere(messageFields, signature, file))
-      .map(signature => {
-        return {
-          name: signature.name.getText(file),
-          fieldValue: getFieldValueFromType(signature.type as ts.TypeNode),
-        };
-      });
-  }
-
-  function getFieldValueFromType(typeNode: ts.TypeNode): NodeFieldValue {
-    // The type is of shape "A[]", we want to generate repeated A
-    if (ts.isArrayTypeNode(typeNode)) {
-      return {
-        elementValue: flattenRepeatedNodeInOneOf(getFieldValueFromType(typeNode.elementType)),
-      };
-    }
-
-    // The type is of shape "A | B", we want to generate oneof name {A a, B b}
-    if (ts.isUnionTypeNode(typeNode)) {
-      if (typeNode.types.every(t => ts.isLiteralTypeNode(t) && ts.isStringLiteral(t.literal))) {
-        // Case similar to "kind: "init" | "get" | "set";".
-        // In this case, we don't want to create one field per alternative, it is enough to create one single string field of type string.
-        // Note that we loose the potential exhaustiveness compiler check, but adding more code to have this feature is currently overkill compared to the usefulness.
-        return { type: 'string' };
-      }
-
-      const interestingTypes = typeNode.types
-        // We don't need to explicitly say that a value can be undefined or null, if it is the case during serialization, we will simply not put anything.
-        .filter(t => !isNullOrUndefined(t));
-
-      if (interestingTypes.length === 1) {
-        return getFieldValueFromType(interestingTypes[0]);
-      }
-
-      return {
-        unionElements: interestingTypes.map(t => {
-          return {
-            name: lowerCaseFirstLetter(t.getText(file)),
-            fieldValue: getFieldValueFromType(t),
-          };
-        }),
-      };
-    }
-
-    if (ts.isLiteralTypeNode(typeNode)) {
-      if (ts.isStringLiteral(typeNode.literal)) {
-        return { type: 'string' };
-      }
-      if (
-        typeNode.literal.kind === ts.SyntaxKind.TrueKeyword ||
-        typeNode.literal.kind === ts.SyntaxKind.FalseKeyword
-      ) {
-        return { type: 'bool' };
-      }
-      throw new Error(
-        `unexpected literal type: ${ts.SyntaxKind[typeNode.literal.kind]} (${typeNode.literal.getText(file)})`,
-      );
-    }
-
-    if (ts.isTypeReferenceNode(typeNode)) {
-      const name = typeNode.typeName.getText(file);
-      if (name === 'Array' && typeNode.typeArguments?.length === 1) {
-        // The type is of shape "Array<A>", we want to generate repeated A
-        return {
-          elementValue: getFieldValueFromType(typeNode.typeArguments[0]),
-        };
-      }
-      return requestType(typeNode.typeName.getText(file));
-    }
-
-    // The type is a primitve type
-    switch (typeNode.kind) {
-      case ts.SyntaxKind.StringKeyword:
-        return { type: 'string' };
-      case ts.SyntaxKind.NumberKeyword:
-      case ts.SyntaxKind.BigIntKeyword:
-        return { type: 'int32' };
-      case ts.SyntaxKind.BooleanKeyword:
-        return { type: 'bool' };
-    }
-
-    if (ts.isIndexedAccessTypeNode(typeNode)) {
-      // Specific case for "ExpressionMap", as it is declared with a "keyof" logic.
-      const keyOfDeclaration = declarations[
-        typeNode.objectType.getText(file)
-      ] as ts.InterfaceDeclaration;
-      return {
-        unionElements: keyOfDeclaration.members
-          .filter(ts.isPropertySignature)
-          .filter(signature => signature.type)
-          .map(s => {
-            return {
-              name: lowerCaseFirstLetter((s.type as ts.TypeNode).getText(file)),
-              fieldValue: getFieldValueFromType(s.type as ts.TypeNode),
-            };
-          }),
-      };
-    }
-    throw new Error(`Cannot generate Protobuf field Value for typeNode ${typeNode.getText(file)}`);
-  }
-
-  return messages;
-}
-
-function declarationsFromFile(file: ts.SourceFile) {
-  const declarations: Record<string, Declaration> = {};
-  for (const statement of file.statements) {
-    // The "index.d.ts" file contains only interfaces and type aliases.
-    const declaration = statement as Declaration;
-    declarations[declaration.name.getText(file)] = declaration;
-  }
-  return declarations;
-}
-
-function isNullOrUndefined(node: ts.TypeNode): boolean {
-  if (ts.isLiteralTypeNode(node)) {
-    return (
-      node.literal.kind === ts.SyntaxKind.NullKeyword ||
-      node.literal.kind === ts.SyntaxKind.UndefinedKeyword
-    );
-  }
-  return node.kind === ts.SyntaxKind.NullKeyword || node.kind === ts.SyntaxKind.UndefinedKeyword;
-}
-
-function flattenRepeatedNodeInOneOf(field: NodeFieldValue): NodeFieldValue {
-  // Protobuf does not support oneof with repeated fields, so we need to flatten them.
-  if ('unionElements' in field) {
-    // We naively put the value to be a Top Level Node. We loose a bit of compiler safety check
-    // (example: "Literal | Identifier" will be flattened to a Top Level Node, meaning that one could put any "Expression" in it, which is not correct)
-    // but it is a tradeoff we are willing to make for now.
-    return { type: TOP_LEVEL_NODE };
-  }
-  return field;
-}
-
-function isAlreadyThere(
-  messageFields: { name: string; fieldValue: NodeFieldValue }[],
-  signature: ts.PropertySignature,
-  file: ts.SourceFile,
-) {
-  for (const field of messageFields) {
-    if (field.name === signature.name.getText(file)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Returns the type hierarchy from top to bottom
- * Example: [BaseStatement, BaseForXStatement, ForInStatement]
- */
-function extractTypeHierarchy(
-  declaration: ts.InterfaceDeclaration,
-  file: ts.SourceFile,
-  declarations: Record<string, Declaration>,
-): string[] {
-  const inheritedTypes = declaration?.heritageClauses
-    ?.flatMap(hc => hc.types)
-    ?.flatMap(t => {
-      const typeName = t.getText(file);
-      const parentDeclaration = declarations[t.getText(file)];
-      // We stop at BaseNode, we will handle it manually.
-      if (parentDeclaration && typeName !== 'BaseNode') {
-        return extractTypeHierarchy(
-          parentDeclaration as ts.InterfaceDeclaration,
-          file,
-          declarations,
-        );
-      }
-      return [];
-    });
-  const ret: string[] = inheritedTypes || [];
-  ret.push(declaration.name.getText(file));
-  return ret;
-}
-
-export function lowerCaseFirstLetter(str: string) {
-  return str.charAt(0).toLowerCase() + str.slice(1);
-}
diff --git a/tools/estree/load-proto.ts b/tools/estree/load-proto.ts
deleted file mode 100644
index 6315aab62d6..00000000000
--- a/tools/estree/load-proto.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * SonarQube JavaScript Plugin
- * Copyright (C) 2011-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-import protobuf from 'protobufjs';
-
-const proto = protobuf.loadSync('output/estree.proto');
diff --git a/tools/estree/main.ts b/tools/estree/main.ts
deleted file mode 100644
index d2b9211b6da..00000000000
--- a/tools/estree/main.ts
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * SonarQube JavaScript Plugin
- * Copyright (C) 2011-2024 SonarSource SA
- * mailto:info AT sonarsource DOT com
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or (at your option) any later version.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-import path from 'node:path';
-import ts from 'typescript';
-import fs from 'node:fs';
-import { writeMessagesToDir } from './generate-proto-file';
-import { writeJavaClassesToDir } from './generate-java-ast';
-import { getEstreeNodes } from './get-estree-nodes';
-
-const TYPES_PATH = path.join('..', '..', 'node_modules', '@types', 'estree', 'index.d.ts');
-const file = ts.createSourceFile(
-  TYPES_PATH,
-  fs.readFileSync(TYPES_PATH, 'utf-8'),
-  ts.ScriptTarget.ESNext,
-);
-
-const nodes = getEstreeNodes(file);
-
-const arg = process.argv[2];
-const output = 'output';
-
-fs.mkdirSync(output, { recursive: true });
-if (arg === 'proto') {
-  writeMessagesToDir(nodes, output);
-} else if (arg === 'java') {
-  writeJavaClassesToDir(nodes, path.join(output, 'ESTree.java'));
-} else {
-  console.error('Error: Argument should be "proto" or "java"');
-  process.exit(1); // Exit with a failure code
-}
diff --git a/tools/estree/output/estree.proto b/tools/estree/output/estree.proto
deleted file mode 100644
index 6a1e198f998..00000000000
--- a/tools/estree/output/estree.proto
+++ /dev/null
@@ -1,475 +0,0 @@
-syntax = "proto3";
-// Generated for @types/estree version: 1.0.5
-// Note: this file was manually modified, to reach a working state faster.
-// We should eventually adapt the generator once we are happy with the exact structure.
-option java_package="org.sonar.plugins.javascript.bridge.protobuf";
-option java_multiple_files = true;
-
-message SourceLocation {
-  string source = 1;
-  Position start = 2;
-  Position end = 3;
-}
-message Position {
-  int32 line = 1;
-  int32 column = 2;
-}
-
-enum NodeType {
-  ProgramType = 0;
-  ExportAllDeclarationType = 1;
-  IdentifierType = 2;
-  ExportDefaultDeclarationType = 3;
-  YieldExpressionType = 4;
-  UpdateExpressionType = 5;
-  UnaryExpressionType = 6;
-  ThisExpressionType = 7;
-  TemplateLiteralType = 8;
-  TaggedTemplateExpressionType = 9;
-  SequenceExpressionType = 10;
-  ObjectExpressionType = 11;
-  SpreadElementType = 12;
-  PropertyType = 13;
-  AssignmentPatternType = 14;
-  RestElementType = 15;
-  ArrayPatternType = 16;
-  ObjectPatternType = 17;
-  PrivateIdentifierType = 18;
-  NewExpressionType = 19;
-  SuperType = 20;
-  MetaPropertyType = 21;
-  MemberExpressionType = 22;
-  LogicalExpressionType = 23;
-  ImportExpressionType = 24;
-  BlockStatementType = 25;
-  ConditionalExpressionType = 26;
-  ClassExpressionType = 27;
-  ClassBodyType = 28;
-  StaticBlockType = 29;
-  PropertyDefinitionType = 30;
-  MethodDefinitionType = 31;
-  ChainExpressionType = 32;
-  CallExpressionType = 33;
-  BinaryExpressionType = 34;
-  AwaitExpressionType = 35;
-  AssignmentExpressionType = 36;
-  ArrowFunctionExpressionType = 37;
-  ArrayExpressionType = 38;
-  ClassDeclarationType = 39;
-  FunctionDeclarationType = 40;
-  ExportNamedDeclarationType = 41;
-  ExportSpecifierType = 42;
-  VariableDeclarationType = 43;
-  VariableDeclaratorType = 44;
-  ImportDeclarationType = 45;
-  ImportNamespaceSpecifierType = 46;
-  ImportDefaultSpecifierType = 47;
-  ImportSpecifierType = 48;
-  ForOfStatementType = 49;
-  ForInStatementType = 50;
-  ForStatementType = 51;
-  DoWhileStatementType = 52;
-  WhileStatementType = 53;
-  TryStatementType = 54;
-  CatchClauseType = 55;
-  ThrowStatementType = 56;
-  SwitchStatementType = 57;
-  SwitchCaseType = 58;
-  IfStatementType = 59;
-  ContinueStatementType = 60;
-  BreakStatementType = 61;
-  LabeledStatementType = 62;
-  ReturnStatementType = 63;
-  WithStatementType = 64;
-  DebuggerStatementType = 65;
-  EmptyStatementType = 66;
-  ExpressionStatementType = 67;
-  LiteralType = 68;
-  TemplateElementType = 69;
-  FunctionExpressionType = 70;
-  UnknownNodeType = 1000;
-}
-message Node {
-  NodeType type = 1;
-  SourceLocation loc = 2;
-  oneof node {
-    Program program = 3;
-    ExportAllDeclaration exportAllDeclaration = 4;
-    Identifier identifier = 5;
-    ExportDefaultDeclaration exportDefaultDeclaration = 6;
-    YieldExpression yieldExpression = 7;
-    UpdateExpression updateExpression = 8;
-    UnaryExpression unaryExpression = 9;
-    ThisExpression thisExpression = 10;
-    TemplateLiteral templateLiteral = 11;
-    TaggedTemplateExpression taggedTemplateExpression = 12;
-    SequenceExpression sequenceExpression = 13;
-    ObjectExpression objectExpression = 14;
-    SpreadElement spreadElement = 15;
-    Property property = 16;
-    AssignmentPattern assignmentPattern = 17;
-    RestElement restElement = 18;
-    ArrayPattern arrayPattern = 19;
-    ObjectPattern objectPattern = 20;
-    PrivateIdentifier privateIdentifier = 21;
-    NewExpression newExpression = 22;
-    Super super = 23;
-    MetaProperty metaProperty = 24;
-    MemberExpression memberExpression = 25;
-    LogicalExpression logicalExpression = 26;
-    ImportExpression importExpression = 27;
-    BlockStatement blockStatement = 28;
-    ConditionalExpression conditionalExpression = 29;
-    ClassExpression classExpression = 30;
-    ClassBody classBody = 31;
-    StaticBlock staticBlock = 32;
-    PropertyDefinition propertyDefinition = 33;
-    MethodDefinition methodDefinition = 34;
-    ChainExpression chainExpression = 35;
-    CallExpression callExpression = 36;
-    BinaryExpression binaryExpression = 37;
-    AwaitExpression awaitExpression = 38;
-    AssignmentExpression assignmentExpression = 39;
-    ArrowFunctionExpression arrowFunctionExpression = 40;
-    ArrayExpression arrayExpression = 41;
-    ClassDeclaration classDeclaration = 42;
-    FunctionDeclaration functionDeclaration = 43;
-    ExportNamedDeclaration exportNamedDeclaration = 44;
-    ExportSpecifier exportSpecifier = 45;
-    VariableDeclaration variableDeclaration = 46;
-    VariableDeclarator variableDeclarator = 47;
-    ImportDeclaration importDeclaration = 48;
-    ImportNamespaceSpecifier importNamespaceSpecifier = 49;
-    ImportDefaultSpecifier importDefaultSpecifier = 50;
-    ImportSpecifier importSpecifier = 51;
-    ForOfStatement forOfStatement = 52;
-    ForInStatement forInStatement = 53;
-    ForStatement forStatement = 54;
-    DoWhileStatement doWhileStatement = 55;
-    WhileStatement whileStatement = 56;
-    TryStatement tryStatement = 57;
-    CatchClause catchClause = 58;
-    ThrowStatement throwStatement = 59;
-    SwitchStatement switchStatement = 60;
-    SwitchCase switchCase = 61;
-    IfStatement ifStatement = 62;
-    ContinueStatement continueStatement = 63;
-    BreakStatement breakStatement = 64;
-    LabeledStatement labeledStatement = 65;
-    ReturnStatement returnStatement = 66;
-    WithStatement withStatement = 67;
-    DebuggerStatement debuggerStatement = 68;
-    EmptyStatement emptyStatement = 69;
-    ExpressionStatement expressionStatement = 70;
-    Literal literal = 71;
-    TemplateElement templateElement = 72;
-    FunctionExpression functionExpression = 73;
-    UnknownNode unknownNode = 1000;
-  }
-}
-message Program {
-  string sourceType = 1;
-  repeated Node body = 2;
-}
-message ExportAllDeclaration {
-  optional Node exported = 1;
-  Node source = 2;
-}
-message Literal {
-  string raw = 1;
-  optional string bigint = 2;
-  optional string pattern = 3;
-  optional string flags = 4;
-  oneof value {
-    string valueString = 5;
-    bool valueBoolean = 6;
-    int32 valueNumber = 7;
-  }
-}
-message Identifier {
-  string name = 1;
-}
-message ExportDefaultDeclaration {
-  Node declaration = 1;
-}
-message YieldExpression {
-  optional Node argument = 1;
-  bool delegate = 2;
-}
-message UpdateExpression {
-  string operator = 1;
-  Node argument = 2;
-  bool prefix = 3;
-}
-message UnaryExpression {
-  string operator = 1;
-  bool prefix = 2;
-  Node argument = 3;
-}
-message ThisExpression {
-}
-message TemplateLiteral {
-  repeated Node quasis = 1;
-  repeated Node expressions = 2;
-}
-message TaggedTemplateExpression {
-  Node tag = 1;
-  Node quasi = 2;
-}
-message SequenceExpression {
-  repeated Node expressions = 1;
-}
-message ObjectExpression {
-  repeated Node properties = 1;
-}
-message SpreadElement {
-  Node argument = 1;
-}
-message Property {
-  Node key = 1;
-  Node value = 2;
-  string kind = 3;
-  bool method = 4;
-  bool shorthand = 5;
-  bool computed = 6;
-}
-message AssignmentPattern {
-  Node left = 1;
-  Node right = 2;
-}
-message RestElement {
-  Node argument = 1;
-}
-message ArrayPattern {
-  repeated ArrayElement elements = 1;
-}
-message ObjectPattern {
-  repeated Node properties = 1;
-}
-message PrivateIdentifier {
-  string name = 1;
-}
-message NewExpression {
-  Node callee = 1;
-  repeated Node arguments = 2;
-}
-message Super {
-}
-message MetaProperty {
-  Node meta = 1;
-  Node property = 2;
-}
-message MemberExpression {
-  Node object = 1;
-  Node property = 2;
-  bool computed = 3;
-  bool optional = 4;
-}
-message LogicalExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message ImportExpression {
-  Node source = 1;
-}
-message BlockStatement {
-  repeated Node body = 1;
-}
-message ConditionalExpression {
-  Node test = 1;
-  Node alternate = 2;
-  Node consequent = 3;
-}
-message ClassExpression {
-  optional Node id = 1;
-  optional Node superClass = 2;
-  Node body = 3;
-}
-message ClassBody {
-  repeated Node body = 1;
-}
-message StaticBlock {
-  repeated Node body = 1;
-}
-message PropertyDefinition {
-  Node key = 1;
-  optional Node value = 2;
-  bool computed = 3;
-  bool static = 4;
-}
-message MethodDefinition {
-  Node key = 1;
-  Node value = 2;
-  string kind = 3;
-  bool computed = 4;
-  bool static = 5;
-}
-message ChainExpression {
-  Node expression = 1;
-}
-message CallExpression {
-  bool optional = 1;
-  Node callee = 2;
-  repeated Node arguments = 3;
-}
-message BinaryExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message AwaitExpression {
-  Node argument = 1;
-}
-message AssignmentExpression {
-  string operator = 1;
-  Node left = 2;
-  Node right = 3;
-}
-message ArrowFunctionExpression {
-  bool expression = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-message ArrayExpression {
-  repeated ArrayElement elements = 1;
-}
-message ArrayElement {
-  optional Node element = 1;
-}
-message ClassDeclaration {
-  optional Node id = 1;
-  optional Node superClass = 2;
-  Node body = 3;
-}
-message FunctionDeclaration {
-  Node id = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-message ExportNamedDeclaration {
-  optional Node declaration = 1;
-  repeated Node specifiers = 2;
-  optional Node source = 3;
-}
-message ExportSpecifier {
-  Node exported = 1;
-  Node local = 2;
-}
-message VariableDeclaration {
-  repeated Node declarations = 1;
-  string kind = 2;
-}
-message VariableDeclarator {
-  Node id = 1;
-  optional Node init = 2;
-}
-message ImportDeclaration {
-  repeated Node specifiers = 1;
-  Node source = 2;
-}
-message ImportNamespaceSpecifier {
-  Node local = 1;
-}
-message ImportDefaultSpecifier {
-  Node local = 1;
-}
-message ImportSpecifier {
-  Node imported = 1;
-  Node local = 2;
-}
-message ForOfStatement {
-  bool await = 1;
-  Node left = 2;
-  Node right = 3;
-  Node body = 4;
-}
-message ForInStatement {
-  Node left = 1;
-  Node right = 2;
-  Node body = 3;
-}
-message ForStatement {
-  optional Node init = 1;
-  optional Node test = 2;
-  optional Node update = 3;
-  Node body = 4;
-}
-message DoWhileStatement {
-  Node body = 1;
-  Node test = 2;
-}
-message WhileStatement {
-  Node test = 1;
-  Node body = 2;
-}
-message TryStatement {
-  Node block = 1;
-  optional Node handler = 2;
-  optional Node finalizer = 3;
-}
-message CatchClause {
-  optional Node param = 1;
-  Node body = 2;
-}
-message ThrowStatement {
-  Node argument = 1;
-}
-message SwitchStatement {
-  Node discriminant = 1;
-  repeated Node cases = 2;
-}
-message SwitchCase {
-  optional Node test = 1;
-  repeated Node consequent = 2;
-}
-message IfStatement {
-  Node test = 1;
-  Node consequent = 2;
-  optional Node alternate = 3;
-}
-message ContinueStatement {
-  optional Node label = 1;
-}
-message BreakStatement {
-  optional Node label = 1;
-}
-message LabeledStatement {
-  Node label = 1;
-  Node body = 2;
-}
-message ReturnStatement {
-  optional Node argument = 1;
-}
-message WithStatement {
-  Node object = 1;
-  Node body = 2;
-}
-message DebuggerStatement {
-}
-message EmptyStatement {
-}
-message ExpressionStatement {
-  Node expression = 1;
-  optional string directive = 2;
-}
-message TemplateElement {
-  bool tail = 1;
-  optional string cooked = 2;
-  string raw = 3;
-}
-message FunctionExpression {
-  optional Node id = 1;
-  Node body = 2;
-  repeated Node params = 3;
-  optional bool generator = 4;
-  optional bool async = 5;
-}
-
-message UnknownNode {
-  string rawType = 1;
-}
diff --git a/tools/estree/package.json b/tools/estree/package.json
deleted file mode 100644
index da9b24971a2..00000000000
--- a/tools/estree/package.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "name": "protobuf",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "generate-proto": "ts-node main.ts proto",
-    "generate-java": "ts-node main.ts java",
-    "load": "ts-node load-proto.ts",
-    "compile": "tsc"
-  },
-  "author": "",
-  "license": "ISC"
-}
diff --git a/tools/estree/tsconfig.json b/tools/estree/tsconfig.json
deleted file mode 100644
index bb2f7f66251..00000000000
--- a/tools/estree/tsconfig.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "compilerOptions": {
-    /* Visit https://aka.ms/tsconfig to read more about this file */
-
-    /* Projects */
-    // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
-    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
-    // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
-    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
-    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
-    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
-
-    /* Language and Environment */
-    "target": "es2016" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
-    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
-    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
-    // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
-    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
-    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
-    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
-    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
-    // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
-    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
-    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
-    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
-
-    /* Modules */
-    "module": "commonjs" /* Specify what module code is generated. */,
-    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
-    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
-    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
-    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
-    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
-    // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
-    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
-    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
-    // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
-    // "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
-    // "resolvePackageJsonExports": true,                /* Use the package.json 'exports' field when resolving package imports. */
-    // "resolvePackageJsonImports": true,                /* Use the package.json 'imports' field when resolving imports. */
-    // "customConditions": [],                           /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
-    // "resolveJsonModule": true,                        /* Enable importing .json files. */
-    // "allowArbitraryExtensions": true,                 /* Enable importing files with any extension, provided a declaration file is present. */
-    // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
-
-    /* JavaScript Support */
-    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
-    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
-    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
-
-    /* Emit */
-    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
-    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
-    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
-    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
-    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
-    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
-    // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
-    // "removeComments": true,                           /* Disable emitting comments. */
-    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
-    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
-    // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types. */
-    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
-    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
-    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
-    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
-    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
-    // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
-    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
-    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
-    // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
-    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
-    // "preserveValueImports": true,                     /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
-
-    /* Interop Constraints */
-    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
-    // "verbatimModuleSyntax": true,                     /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */
-    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
-    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
-    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
-    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
-
-    /* Type Checking */
-    "strict": true /* Enable all strict type-checking options. */,
-    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
-    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
-    // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
-    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
-    // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
-    // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
-    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
-    // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
-    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
-    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
-    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
-    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
-    // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
-    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
-    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
-    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
-    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
-
-    /* Completeness */
-    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
-    "skipLibCheck": true /* Skip type checking all .d.ts files. */
-  }
-}