Revert the antlr4 files as they are generated ones

Author: ilayaperumalg

spring-ai-core/src/main/java/org/springframework/ai/vectorstore/filter/antlr4/FiltersLexer.java

@@ -43,6 +43,12 @@ public class FiltersLexer extends Lexer {
 
 	public static final String[] ruleNames = makeRuleNames();
 
+	/**
+	 * @deprecated Use {@link #VOCABULARY} instead.
+	 */
+	@Deprecated
+	public static final String[] tokenNames;
+
 	public static final String _serializedATN = "\u0004\u0000\u001a\u00e5\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002"
 			+ "\u0001\u0007\u0001\u0002\u0002\u0007\u0002\u0002\u0003\u0007\u0003\u0002"
 			+ "\u0004\u0007\u0004\u0002\u0005\u0007\u0005\u0002\u0006\u0007\u0006\u0002"
@@ -234,6 +240,12 @@ private static String[] makeSymbolicNames() {
 				"IDENTIFIER", "WS" };
 	}
 
+	@Override
+	@Deprecated
+	public String[] getTokenNames() {
+		return tokenNames;
+	}
+
 	@Override
 
 	public Vocabulary getVocabulary() {
@@ -274,6 +286,20 @@ public ATN getATN() {
 		RuntimeMetaData.checkVersion("4.13.1", RuntimeMetaData.VERSION);
 	}
 
+	static {
+		tokenNames = new String[_SYMBOLIC_NAMES.length];
+		for (int i = 0; i < tokenNames.length; i++) {
+			tokenNames[i] = VOCABULARY.getLiteralName(i);
+			if (tokenNames[i] == null) {
+				tokenNames[i] = VOCABULARY.getSymbolicName(i);
+			}
+
+			if (tokenNames[i] == null) {
+				tokenNames[i] = "<INVALID>";
+			}
+		}
+	}
+
 	static {
 		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
 		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {

spring-ai-core/src/main/java/org/springframework/ai/vectorstore/filter/antlr4/FiltersParser.java

@@ -57,6 +57,12 @@ public class FiltersParser extends Parser {
 
 	public static final String[] ruleNames = makeRuleNames();
 
+	/**
+	 * @deprecated Use {@link #VOCABULARY} instead.
+	 */
+	@Deprecated
+	public static final String[] tokenNames;
+
 	public static final String _serializedATN = "\u0004\u0001\u001aY\u0002\u0000\u0007\u0000\u0002\u0001\u0007\u0001\u0002"
 			+ "\u0002\u0007\u0002\u0002\u0003\u0007\u0003\u0002\u0004\u0007\u0004\u0002"
 			+ "\u0005\u0007\u0005\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001"
@@ -129,6 +135,20 @@ public class FiltersParser extends Parser {
 		RuntimeMetaData.checkVersion("4.13.1", RuntimeMetaData.VERSION);
 	}
 
+	static {
+		tokenNames = new String[_SYMBOLIC_NAMES.length];
+		for (int i = 0; i < tokenNames.length; i++) {
+			tokenNames[i] = VOCABULARY.getLiteralName(i);
+			if (tokenNames[i] == null) {
+				tokenNames[i] = VOCABULARY.getSymbolicName(i);
+			}
+
+			if (tokenNames[i] == null) {
+				tokenNames[i] = "<INVALID>";
+			}
+		}
+	}
+
 	static {
 		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
 		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
@@ -159,9 +179,8 @@ private static String[] makeSymbolicNames() {
 
 	@Override
 	@Deprecated
-	// Usage of token names is removed and hence this returns null.
 	public String[] getTokenNames() {
-		return null;
+		return tokenNames;
 	}
 
 	@Override