Extend reserved word usage also to JPQL parser.

Closes #3832

Author: mp911de

spring-data-jpa/src/main/antlr4/org/springframework/data/jpa/repository/query/Jpql.g4

@@ -685,18 +685,22 @@ subtype
 
 collection_valued_field
     : identification_variable
+    | reserved_word
     ;
 
 single_valued_object_field
     : identification_variable
+    | reserved_word
     ;
 
 state_field
     : identification_variable
+    | reserved_word
     ;
 
 collection_value_field
     : identification_variable
+    | reserved_word
     ;
 
 entity_name

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/JpqlQueryRenderer.java

@@ -2108,21 +2108,36 @@ public QueryTokenStream visitSubtype(JpqlParser.SubtypeContext ctx) {
 
 	@Override
 	public QueryTokenStream visitCollection_valued_field(JpqlParser.Collection_valued_fieldContext ctx) {
+		if (ctx.reserved_word() != null) {
+			return visit(ctx.reserved_word());
+		}
 		return visit(ctx.identification_variable());
 	}
 
 	@Override
 	public QueryTokenStream visitSingle_valued_object_field(JpqlParser.Single_valued_object_fieldContext ctx) {
+
+		if (ctx.reserved_word() != null) {
+			return visit(ctx.reserved_word());
+		}
 		return visit(ctx.identification_variable());
 	}
 
 	@Override
 	public QueryTokenStream visitState_field(JpqlParser.State_fieldContext ctx) {
+
+		if (ctx.reserved_word() != null) {
+			return visit(ctx.reserved_word());
+		}
 		return visit(ctx.identification_variable());
 	}
 
 	@Override
 	public QueryTokenStream visitCollection_value_field(JpqlParser.Collection_value_fieldContext ctx) {
+
+		if (ctx.reserved_word() != null) {
+			return visit(ctx.reserved_word());
+		}
 		return visit(ctx.identification_variable());
 	}
 

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/EqlQueryRendererTests.java

@@ -1040,4 +1040,13 @@ void lateralShouldBeAValidParameter() {
 		assertQuery("select e from Employee e where e.lateral = :_lateral");
 		assertQuery("select te from TestEntity te where te.lateral = :lateral");
 	}
+
+	@Test
+	void reservedWordsShouldWork() {
+
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie.object from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.object = :externalId");
+		assertQuery("select ie from ItemExample ie where ie.status = com.app.domain.object.Status.UP");
+	}
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/HqlQueryRendererTests.java

@@ -1923,4 +1923,13 @@ void entityNameWithPackageContainingReservedWord(String reservedWord) {
 		String source = "select new com.company.%s.thing.stuff.ClassName(e.id) from Experience e".formatted(reservedWord);
 		assertQuery(source);
 	}
+
+	@Test
+	void reservedWordsShouldWork() {
+
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie.object from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.object = :externalId");
+		assertQuery("select ie from ItemExample ie where ie.status = com.app.domain.object.Status.UP");
+	}
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/JpqlQueryRendererTests.java

@@ -1027,4 +1027,13 @@ void entityNameWithPackageContainingReservedWord(String reservedWord) {
 		assertQuery(source);
 	}
 
+	@Test
+	void reservedWordsShouldWork() {
+
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie.object from ItemExample ie left join ie.object io where io.externalId = :externalId");
+		assertQuery("select ie from ItemExample ie left join ie.object io where io.object = :externalId");
+		assertQuery("select ie from ItemExample ie where ie.status = com.app.domain.object.Status.UP");
+	}
+
 }