clean up lots of warnings by adding wildcards to raw types

also comment out some unused code

hibernate-core/src/main/java/org/hibernate/dialect/function/AvgFunction.java

@@ -59,14 +59,14 @@ public class AvgFunction extends AbstractSqmSelfRenderingFunctionDescriptor {
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		render( sqlAppender, sqlAstArguments, null, walker );
 	}
 
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> translator) {
 		final boolean caseWrapper = filter != null && !translator.supportsFilterClause();

hibernate-core/src/main/java/org/hibernate/dialect/function/CaseLeastGreatestEmulation.java

@@ -10,7 +10,6 @@ import java.util.List;
 
 import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor;
 import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator;
-import org.hibernate.query.sqm.produce.function.FunctionParameterType;
 import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators;
 import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
 import org.hibernate.sql.ast.SqlAstTranslator;
@@ -40,7 +39,7 @@ public class CaseLeastGreatestEmulation
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final int numberOfArguments = arguments.size();
 		if ( numberOfArguments > 1 ) {

hibernate-core/src/main/java/org/hibernate/dialect/function/CaseWhenEveryAnyEmulation.java

@@ -43,7 +43,7 @@ public class CaseWhenEveryAnyEmulation extends AbstractSqmSelfRenderingFunctionD
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> walker) {
 		if ( every ) {
@@ -66,7 +66,7 @@ public class CaseWhenEveryAnyEmulation extends AbstractSqmSelfRenderingFunctionD
 
 	@Override
 	public void render(
-			SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+			SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		this.render( sqlAppender, sqlAstArguments, null, walker );
 	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/function/CastFunction.java

@@ -51,7 +51,7 @@ public class CastFunction extends AbstractSqmSelfRenderingFunctionDescriptor {
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> arguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> arguments, SqlAstTranslator<?> walker) {
 		final Expression source = (Expression) arguments.get( 0 );
 		final JdbcMapping sourceMapping = source.getExpressionType().getJdbcMappings().get( 0 );
 		final CastType sourceType = getCastType( sourceMapping );

hibernate-core/src/main/java/org/hibernate/dialect/function/CastingConcatFunction.java

@@ -63,7 +63,7 @@ public class CastingConcatFunction extends AbstractSqmSelfRenderingFunctionDescr
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( '(' );
 		renderAsString( sqlAppender, walker, (Expression) sqlAstArguments.get( 0 ) );
 		for ( int i = 1; i < sqlAstArguments.size(); i++ ) {

hibernate-core/src/main/java/org/hibernate/dialect/function/CountFunction.java

@@ -68,14 +68,14 @@ public class CountFunction extends AbstractSqmSelfRenderingFunctionDescriptor {
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		render( sqlAppender, sqlAstArguments, null, walker );
 	}
 
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> translator) {
 		final boolean caseWrapper = filter != null && !translator.supportsFilterClause();

hibernate-core/src/main/java/org/hibernate/dialect/function/CurrentFunction.java

@@ -36,7 +36,7 @@ public class CurrentFunction
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( sql );
 	}

hibernate-core/src/main/java/org/hibernate/dialect/function/DB2FormatEmulation.java

@@ -49,7 +49,7 @@ public class DB2FormatEmulation
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final Expression datetime = (Expression) arguments.get(0);
 		final boolean isTime = TypeConfiguration.getSqlTemporalType( datetime.getExpressionType() ) == TemporalType.TIME;

hibernate-core/src/main/java/org/hibernate/dialect/function/DerbyLpadEmulation.java

@@ -43,7 +43,7 @@ public class DerbyLpadEmulation
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final SqlAstNode string = arguments.get( 0 );
 		final SqlAstNode length = arguments.get( 1 );

hibernate-core/src/main/java/org/hibernate/dialect/function/DerbyRpadEmulation.java

@@ -43,7 +43,7 @@ public class DerbyRpadEmulation
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final SqlAstNode string = arguments.get( 0 );
 		final SqlAstNode length = arguments.get( 1 );

hibernate-core/src/main/java/org/hibernate/dialect/function/EveryAnyEmulation.java

@@ -44,7 +44,7 @@ public class EveryAnyEmulation extends AbstractSqmSelfRenderingFunctionDescripto
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( "(sum(case when " );
@@ -72,7 +72,7 @@ public class EveryAnyEmulation extends AbstractSqmSelfRenderingFunctionDescripto
 
 	@Override
 	public void render(
-			SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+			SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		this.render( sqlAppender, sqlAstArguments, null, walker );
 	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/function/FieldFunction.java

@@ -34,7 +34,7 @@ public class FieldFunction extends AbstractSqmSelfRenderingFunctionDescriptor {
 
 	@Override
 	public void render(
-			SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+			SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( "field(" );
 		sqlAstArguments.get( 0 ).accept( walker );
 		for ( int i = 1; i < sqlAstArguments.size(); i++ ) {

hibernate-core/src/main/java/org/hibernate/dialect/function/QuantifiedLeastGreatestEmulation.java

@@ -39,7 +39,7 @@ public class QuantifiedLeastGreatestEmulation
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final int numberOfArguments = arguments.size();
 		if ( numberOfArguments > 1 ) {

hibernate-core/src/main/java/org/hibernate/dialect/function/SQLServerEveryAnyEmulation.java

@@ -44,7 +44,7 @@ public class SQLServerEveryAnyEmulation extends AbstractSqmSelfRenderingFunction
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> walker) {
 		if ( every ) {
@@ -67,7 +67,7 @@ public class SQLServerEveryAnyEmulation extends AbstractSqmSelfRenderingFunction
 
 	@Override
 	public void render(
-			SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+			SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		this.render( sqlAppender, sqlAstArguments, null, walker );
 	}
 }

hibernate-core/src/main/java/org/hibernate/dialect/function/SQLServerFormatEmulation.java

@@ -10,10 +10,8 @@ import java.util.List;
 import jakarta.persistence.TemporalType;
 
 import org.hibernate.dialect.SQLServerDialect;
-import org.hibernate.query.spi.QueryEngine;
 import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor;
 import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator;
-import org.hibernate.query.sqm.produce.function.FunctionParameterType;
 import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators;
 import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
 import org.hibernate.sql.ast.SqlAstTranslator;
@@ -50,7 +48,7 @@ public class SQLServerFormatEmulation extends AbstractSqmSelfRenderingFunctionDe
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final Expression datetime = (Expression) arguments.get(0);
 		final boolean isTime = TypeConfiguration.getSqlTemporalType( datetime.getExpressionType() ) == TemporalType.TIME;

hibernate-core/src/main/java/org/hibernate/dialect/function/SqlFunction.java

@@ -15,7 +15,6 @@ import org.hibernate.sql.ast.SqlAstTranslator;
 import org.hibernate.sql.ast.spi.SqlAppender;
 import org.hibernate.sql.ast.tree.SqlAstNode;
 import org.hibernate.sql.ast.tree.expression.QueryLiteral;
-import org.hibernate.type.BasicType;
 import org.hibernate.type.JavaObjectType;
 
 /**
@@ -37,7 +36,7 @@ public class SqlFunction
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 		final QueryLiteral<String> sqlFragmentLiteral = (QueryLiteral<String>) arguments.get( 0 );
 		final String sqlFragment = sqlFragmentLiteral.getLiteralValue();

hibernate-core/src/main/java/org/hibernate/dialect/function/TimestampaddFunction.java

@@ -67,7 +67,7 @@ public class TimestampaddFunction
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 
 		final DurationUnit field = (DurationUnit) arguments.get( 0 );
@@ -143,7 +143,7 @@ public class TimestampaddFunction
 					1,
 					new SelfRenderingFunctionSqlAstExpression(
 							"cast",
-							castFunction::render,
+							castFunction,
 							castArguments,
 							integerType,
 							integerType
@@ -190,7 +190,7 @@ public class TimestampaddFunction
 		Expression to = (Expression) sqlAstArguments[2];
 		return new SelfRenderingFunctionSqlAstExpression(
 				getName(),
-				this::render,
+				this,
 				asList( sqlAstArguments ),
 				impliedResultType != null
 						? impliedResultType

hibernate-core/src/main/java/org/hibernate/dialect/function/TimestampdiffFunction.java

@@ -13,7 +13,6 @@ import org.hibernate.metamodel.model.domain.AllowableFunctionReturnType;
 import org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor;
 import org.hibernate.query.sqm.function.SelfRenderingFunctionSqlAstExpression;
 import org.hibernate.query.sqm.produce.function.ArgumentTypesValidator;
-import org.hibernate.query.sqm.produce.function.FunctionParameterType;
 import org.hibernate.query.sqm.produce.function.StandardArgumentsValidators;
 import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
 import org.hibernate.query.sqm.produce.function.internal.PatternRenderer;
@@ -54,7 +53,7 @@ public class TimestampdiffFunction
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> arguments,
+			List<? extends SqlAstNode> arguments,
 			SqlAstTranslator<?> walker) {
 
 		final DurationUnit field = (DurationUnit) arguments.get( 0 );
@@ -104,7 +103,7 @@ public class TimestampdiffFunction
 		DurationUnit field = (DurationUnit) sqlAstArguments[0];
 		return new SelfRenderingFunctionSqlAstExpression(
 				getName(),
-				this::render,
+				this,
 				asList( sqlAstArguments ),
 				impliedResultType != null
 						? impliedResultType

hibernate-core/src/main/java/org/hibernate/dialect/function/TransactSQLStrFunction.java

@@ -67,7 +67,7 @@ public class TransactSQLStrFunction extends CastStrEmulation implements Function
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> arguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> arguments, SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( "str(" );
 		arguments.get( 0 ).accept( walker );
 		for ( int i = 1; i < arguments.size(); i++ ) {

hibernate-core/src/main/java/org/hibernate/dialect/function/TrimFunction.java

@@ -17,7 +17,7 @@ import org.hibernate.sql.ast.SqlAstTranslator;
 import org.hibernate.sql.ast.spi.SqlAppender;
 import org.hibernate.sql.ast.tree.SqlAstNode;
 import org.hibernate.sql.ast.tree.expression.Expression;
-import org.hibernate.sql.ast.tree.expression.QueryLiteral;
+import org.hibernate.sql.ast.tree.expression.Literal;
 import org.hibernate.sql.ast.tree.expression.TrimSpecification;
 import org.hibernate.type.StandardBasicTypes;
 import org.hibernate.type.spi.TypeConfiguration;
@@ -50,12 +50,12 @@ public class TrimFunction extends AbstractSqmSelfRenderingFunctionDescriptor {
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		final TrimSpec specification = ( (TrimSpecification) sqlAstArguments.get( 0 ) ).getSpecification();
-		final Character trimCharacter = ( (QueryLiteral<Character>) sqlAstArguments.get( 1 ) ).getLiteralValue();
+		final Object trimCharacter = ( (Literal) sqlAstArguments.get( 1 ) ).getLiteralValue();
 		final Expression sourceExpr = (Expression) sqlAstArguments.get( 2 );
 
-		String trim = dialect.trimPattern( specification, trimCharacter );
+		String trim = dialect.trimPattern( specification, (char) trimCharacter );
 
 		new PatternRenderer( trim ).render( sqlAppender, Collections.singletonList( sourceExpr ), walker );
 	}

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/ordering/ast/FunctionExpression.java

@@ -108,7 +108,7 @@ public class FunctionExpression implements OrderingExpression, FunctionRendering
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 		sqlAppender.appendSql( name );
 		sqlAppender.appendSql( '(' );
 		if ( !sqlAstArguments.isEmpty() ) {

hibernate-core/src/main/java/org/hibernate/query/internal/ParameterMetadataImpl.java

@@ -39,7 +39,7 @@ public class ParameterMetadataImpl implements ParameterMetadataImplementor {
 	 */
 	public static final ParameterMetadataImpl EMPTY = new ParameterMetadataImpl();
 
-	private final Map<QueryParameterImplementor<?>, List<SqmParameter>> queryParameters;
+	private final Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> queryParameters;
 
 	private final Set<String> names;
 	private final Set<Integer> labels;
@@ -51,7 +51,7 @@ public class ParameterMetadataImpl implements ParameterMetadataImplementor {
 		this.labels = Collections.emptySet();
 	}
 
-	public ParameterMetadataImpl(Map<QueryParameterImplementor<?>, List<SqmParameter>> queryParameters) {
+	public ParameterMetadataImpl(Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> queryParameters) {
 		this.queryParameters = queryParameters;
 
 		// if we have any ordinal parameters, make sure the numbers
@@ -168,12 +168,12 @@ public class ParameterMetadataImpl implements ParameterMetadataImplementor {
 
 	@Override
 	public <T> AllowableParameterType<T> getInferredParameterType(QueryParameter<T> parameter) {
-		final List<SqmParameter> sqmParameters = queryParameters.get( parameter );
+		final List<SqmParameter<?>> sqmParameters = queryParameters.get( parameter );
 		if ( sqmParameters == null || sqmParameters.isEmpty() ) {
 			return null;
 		}
-		for ( SqmParameter sqmParameter : sqmParameters ) {
+		for ( SqmParameter<?> sqmParameter : sqmParameters ) {
-			final AllowableParameterType nodeType = sqmParameter.getNodeType();
+			final AllowableParameterType<T> nodeType = (AllowableParameterType<T>) sqmParameter.getNodeType();
 			if ( nodeType != null ) {
 				return nodeType;
 			}

hibernate-core/src/main/java/org/hibernate/query/internal/QueryInterpretationCacheDisabledImpl.java

@@ -6,13 +6,10 @@
  */
 package org.hibernate.query.internal;
 
-import java.util.Collections;
-import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
-import org.hibernate.metamodel.mapping.MappingModelExpressable;
 import org.hibernate.query.spi.HqlInterpretation;
 import org.hibernate.query.spi.NonSelectQueryPlan;
 import org.hibernate.query.spi.ParameterMetadataImplementor;
@@ -21,7 +18,6 @@ import org.hibernate.query.spi.SelectQueryPlan;
 import org.hibernate.query.sql.spi.ParameterInterpretation;
 import org.hibernate.query.sqm.internal.DomainParameterXref;
 import org.hibernate.query.sqm.tree.SqmStatement;
-import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.stat.spi.StatisticsImplementor;
 
 /**
@@ -90,7 +86,7 @@ public class QueryInterpretationCacheDisabledImpl implements QueryInterpretation
 
 		return new HqlInterpretation() {
 			@Override
-			public SqmStatement getSqmStatement() {
+			public SqmStatement<?> getSqmStatement() {
 				return sqmStatement;
 			}
 

hibernate-core/src/main/java/org/hibernate/query/internal/QueryInterpretationCacheStandardImpl.java

@@ -194,11 +194,11 @@ public class QueryInterpretationCacheStandardImpl implements QueryInterpretation
 
 	private static class ImmutableHqlInterpretation {
 
-		private final SqmStatement sqmStatement;
+		private final SqmStatement<?> sqmStatement;
 		private final ParameterMetadataImplementor parameterMetadata;
 
 		public ImmutableHqlInterpretation(
-				SqmStatement sqmStatement,
+				SqmStatement<?> sqmStatement,
 				ParameterMetadataImplementor parameterMetadata) {
 			this.sqmStatement = sqmStatement;
 			this.parameterMetadata = parameterMetadata;

hibernate-core/src/main/java/org/hibernate/query/internal/QueryParameterNamedImpl.java

@@ -26,7 +26,7 @@ public class QueryParameterNamedImpl<T> extends AbstractQueryParameter<T> {
 	 *
 	 * @return The parameter descriptor
 	 */
-	public static <T> QueryParameterNamedImpl<T> fromSqm(SqmParameter parameter) {
+	public static <T> QueryParameterNamedImpl<T> fromSqm(SqmParameter<?> parameter) {
 		assert parameter.getName() != null;
 		assert parameter.getPosition() == null;
 
@@ -63,7 +63,7 @@ public class QueryParameterNamedImpl<T> extends AbstractQueryParameter<T> {
 
 	@Override
 	public NamedQueryMemento.ParameterMemento toMemento() {
-		return session -> new QueryParameterNamedImpl( getName(), allowsMultiValuedBinding(), getHibernateType() );
+		return session -> new QueryParameterNamedImpl<>( getName(), allowsMultiValuedBinding(), getHibernateType() );
 	}
 
 	@Override

hibernate-core/src/main/java/org/hibernate/query/spi/QueryOptions.java

@@ -169,10 +169,7 @@ public interface QueryOptions {
 	default boolean hasLimit() {
 		final Limit limit = getLimit();
 		if ( limit != null ) {
-			if ( limit.getFirstRow() != null ) {
+			if ( limit.getFirstRow() != null || limit.getMaxRows() != null ) {
-				return true;
-			}
-			if ( limit.getMaxRows() != null ) {
 				return true;
 			}
 		}

hibernate-core/src/main/java/org/hibernate/query/spi/SimpleHqlInterpretationImpl.java

@@ -13,12 +13,12 @@ import org.hibernate.query.sqm.tree.SqmStatement;
  * @author Steve Ebersole
  */
 public class SimpleHqlInterpretationImpl implements HqlInterpretation {
-	private final SqmStatement sqmStatement;
+	private final SqmStatement<?> sqmStatement;
 	private final ParameterMetadataImplementor parameterMetadata;
 	private final DomainParameterXref domainParameterXref;
 
 	public SimpleHqlInterpretationImpl(
-			SqmStatement sqmStatement,
+			SqmStatement<?> sqmStatement,
 			ParameterMetadataImplementor parameterMetadata,
 			DomainParameterXref domainParameterXref) {
 		this.sqmStatement = sqmStatement;
@@ -27,7 +27,7 @@ public class SimpleHqlInterpretationImpl implements HqlInterpretation {
 	}
 
 	@Override
-	public SqmStatement getSqmStatement() {
+	public SqmStatement<?> getSqmStatement() {
 		return sqmStatement;
 	}
 

hibernate-core/src/main/java/org/hibernate/query/sqm/function/AbstractSqmSelfRenderingFunctionDescriptor.java

@@ -61,7 +61,7 @@ public abstract class AbstractSqmSelfRenderingFunctionDescriptor
 		}
 		return new SelfRenderingSqmFunction<>(
 				this,
-				this::render,
+				(sqlAppender, sqlAstArguments, walker) -> render(sqlAppender, sqlAstArguments, walker),
 				arguments,
 				impliedResultType,
 				getArgumentsValidator(),
@@ -99,12 +99,12 @@ public abstract class AbstractSqmSelfRenderingFunctionDescriptor
 	 */
 	public abstract void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			SqlAstTranslator<?> walker);
 
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> walker) {
 		render( sqlAppender, sqlAstArguments, walker );

hibernate-core/src/main/java/org/hibernate/query/sqm/function/FunctionRenderingSupport.java

@@ -7,7 +7,6 @@
 package org.hibernate.query.sqm.function;
 
 import org.hibernate.sql.ast.SqlAstTranslator;
-import org.hibernate.sql.ast.SqlAstWalker;
 import org.hibernate.sql.ast.spi.SqlAppender;
 import org.hibernate.sql.ast.tree.SqlAstNode;
 import org.hibernate.sql.ast.tree.predicate.Predicate;
@@ -28,12 +27,12 @@ import java.util.List;
 public interface FunctionRenderingSupport {
 	void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			SqlAstTranslator<?> walker);
 
 	default void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> walker) {
 		// Ignore the filter by default. Subclasses will override this

hibernate-core/src/main/java/org/hibernate/query/sqm/function/NamedSqmFunctionDescriptor.java

@@ -91,7 +91,7 @@ public class NamedSqmFunctionDescriptor
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			SqlAstTranslator<?> translator) {
 		render( sqlAppender, sqlAstArguments, null, translator );
 	}
@@ -99,7 +99,7 @@ public class NamedSqmFunctionDescriptor
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			SqlAstTranslator<?> translator) {
 		final boolean useParens = useParenthesesWhenNoArgs || !sqlAstArguments.isEmpty();

hibernate-core/src/main/java/org/hibernate/query/sqm/function/PatternBasedSqmFunctionDescriptor.java

@@ -71,13 +71,13 @@ public class PatternBasedSqmFunctionDescriptor
 	@Override
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			SqlAstTranslator<?> walker) {
 		renderer.render( sqlAppender, sqlAstArguments, null, walker );
 	}
 
 	@Override
-	public void render(SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, Predicate filter, SqlAstTranslator<?> walker) {
+	public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, Predicate filter, SqlAstTranslator<?> walker) {
 		renderer.render( sqlAppender, sqlAstArguments, filter, walker );
 	}
 

hibernate-core/src/main/java/org/hibernate/query/sqm/function/SelfRenderingAggregateFunctionSqlAstExpression.java

@@ -31,7 +31,7 @@ public class SelfRenderingAggregateFunctionSqlAstExpression extends SelfRenderin
 	public SelfRenderingAggregateFunctionSqlAstExpression(
 			String functionName,
 			FunctionRenderingSupport renderer,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			Predicate filter,
 			AllowableFunctionReturnType<?> type,
 			JdbcMappingContainer expressable) {

hibernate-core/src/main/java/org/hibernate/query/sqm/function/SelfRenderingFunctionSqlAstExpression.java

@@ -47,14 +47,14 @@ public class SelfRenderingFunctionSqlAstExpression
 		implements SelfRenderingExpression, Selectable, SqlExpressable, DomainResultProducer, FunctionExpression {
 	private final String functionName;
 	private final FunctionRenderingSupport renderer;
-	private final List<SqlAstNode> sqlAstArguments;
+	private final List<? extends SqlAstNode> sqlAstArguments;
 	private final AllowableFunctionReturnType<?> type;
 	private final JdbcMappingContainer expressable;
 
 	public SelfRenderingFunctionSqlAstExpression(
 			String functionName,
 			FunctionRenderingSupport renderer,
-			List<SqlAstNode> sqlAstArguments,
+			List<? extends SqlAstNode> sqlAstArguments,
 			AllowableFunctionReturnType<?> type,
 			JdbcMappingContainer expressable) {
 		this.functionName = functionName;
@@ -71,7 +71,7 @@ public class SelfRenderingFunctionSqlAstExpression
 	}
 
 	@Override
-	public List<SqlAstNode> getArguments() {
+	public List<? extends SqlAstNode> getArguments() {
 		return sqlAstArguments;
 	}
 

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/ConcreteSqmSelectQueryPlan.java

@@ -30,6 +30,7 @@ import org.hibernate.query.spi.QueryOptions;
 import org.hibernate.query.spi.QueryParameterImplementor;
 import org.hibernate.query.spi.ScrollableResultsImplementor;
 import org.hibernate.query.spi.SelectQueryPlan;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.SqmTranslation;
 import org.hibernate.query.sqm.sql.SqmTranslator;
 import org.hibernate.query.sqm.sql.SqmTranslatorFactory;
@@ -68,7 +69,7 @@ import static org.hibernate.query.sqm.internal.QuerySqmImpl.CRITERIA_HQL_STRING;
  * @author Steve Ebersole
  */
 public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
-	private final SqmSelectStatement sqm;
+	private final SqmSelectStatement<?> sqm;
 	private final String hql;
 	private final DomainParameterXref domainParameterXref;
 	private final RowTransformer<R> rowTransformer;
@@ -79,7 +80,7 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 
 	@SuppressWarnings("WeakerAccess")
 	public ConcreteSqmSelectQueryPlan(
-			SqmSelectStatement sqm,
+			SqmSelectStatement<?> sqm,
 			String hql,
 			DomainParameterXref domainParameterXref,
 			Class<R> resultType,
@@ -136,26 +137,24 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 
 		this.scrollInterpreter = (scrollMode, executionContext, sqmInterpretation, jdbcParameterBindings) -> {
 			try {
-				final SubselectFetch.RegistrationHandler subSelectFetchKeyHandler = SubselectFetch.createRegistrationHandler(
+//				final SubselectFetch.RegistrationHandler subSelectFetchKeyHandler = SubselectFetch.createRegistrationHandler(
-						executionContext.getSession().getPersistenceContext().getBatchFetchQueue(),
+//						executionContext.getSession().getPersistenceContext().getBatchFetchQueue(),
-						sqmInterpretation.selectStatement,
+//						sqmInterpretation.selectStatement,
-						Collections.emptyList(),
+//						Collections.emptyList(),
-						jdbcParameterBindings
+//						jdbcParameterBindings
-				);
+//				);
 
 				final JdbcSelectExecutor jdbcSelectExecutor = executionContext.getSession()
 						.getFactory()
 						.getJdbcServices()
 						.getJdbcSelectExecutor();
-				final ScrollableResultsImplementor<R> result = jdbcSelectExecutor.scroll(
+				return jdbcSelectExecutor.scroll(
 						sqmInterpretation.getJdbcSelect(),
 						scrollMode,
 						jdbcParameterBindings,
 						new SqmJdbcExecutionContextAdapter( executionContext, sqmInterpretation.jdbcSelect ),
 						rowTransformer
 				);
-
-				return result;
 			}
 			finally {
 				domainParameterXref.clearExpansions();
@@ -176,7 +175,7 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 
 	@SuppressWarnings("unchecked")
 	private RowTransformer<R> determineRowTransformer(
-			SqmSelectStatement sqm,
+			SqmSelectStatement<?> sqm,
 			Class<R> resultType,
 			QueryOptions queryOptions) {
 		if ( resultType == null || resultType.isArray() ) {
@@ -237,7 +236,7 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 	}
 
 	private RowTransformer<R> makeRowTransformerTupleTransformerAdapter(
-			SqmSelectStatement sqm,
+			SqmSelectStatement<?> sqm,
 			QueryOptions queryOptions) {
 		final List<String> aliases = new ArrayList<>();
 		for ( SqmSelection<?> sqmSelection : sqm.getQuerySpec().getSelectClause().getSelections() ) {
@@ -252,8 +251,9 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 			}
 		}
 
-		return new RowTransformerTupleTransformerAdapter<>(
+		return new RowTransformerTupleTransformerAdapter<R>(
-				ArrayHelper.toStringArray( aliases ), queryOptions.getTupleTransformer()
+				ArrayHelper.toStringArray( aliases ),
+				queryOptions.getTupleTransformer()
 		);
 	}
 
@@ -332,7 +332,13 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 				sqmInterpretation.getJdbcParamsXref(),
 				session.getFactory().getDomainModel(),
 				sqmInterpretation.getTableGroupAccess()::findTableGroup,
-				sqmInterpretation.getSqmParameterMappingModelTypes()::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					//this is pretty ugly!
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) sqmInterpretation.getSqmParameterMappingModelTypes().get(parameter);
+					}
+				},
 				session
 		);
 		sqmInterpretation.getJdbcSelect().bindFilterJdbcParameters( jdbcParameterBindings );
@@ -340,7 +346,7 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 	}
 
 	private static CacheableSqmInterpretation buildCacheableSqmInterpretation(
-			SqmSelectStatement sqm,
+			SqmSelectStatement<?> sqm,
 			DomainParameterXref domainParameterXref,
 			DomainQueryExecutionContext executionContext) {
 		final SharedSessionContractImplementor session = executionContext.getSession();
@@ -370,17 +376,20 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 				sqmInterpretation.getSqlAst()
 		);
 
-		final Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref = SqmUtil.generateJdbcParamsXref(
+		final Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref
-				domainParameterXref,
+				= SqmUtil.generateJdbcParamsXref( domainParameterXref, sqmInterpretation::getJdbcParamsBySqmParam );
-				sqmInterpretation::getJdbcParamsBySqmParam
-		);
 		final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(
 				executionContext.getQueryParameterBindings(),
 				domainParameterXref,
 				jdbcParamsXref,
 				session.getFactory().getDomainModel(),
 				tableGroupAccess::findTableGroup,
-				sqmInterpretation.getSqmParameterMappingModelTypeResolutions()::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) sqmInterpretation.getSqmParameterMappingModelTypeResolutions().get(parameter);
+					}
+				},
 				session
 		);
 		final JdbcSelect jdbcSelect = selectTranslator.translate( jdbcParameterBindings, executionContext.getQueryOptions() );
@@ -407,16 +416,16 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 		private final SelectStatement selectStatement;
 		private final JdbcSelect jdbcSelect;
 		private final FromClauseAccess tableGroupAccess;
-		private final Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref;
+		private final Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref;
-		private final Map<SqmParameter, MappingModelExpressable> sqmParameterMappingModelTypes;
+		private final Map<SqmParameter<?>, MappingModelExpressable<?>> sqmParameterMappingModelTypes;
 		private transient JdbcParameterBindings firstParameterBindings;
 
 		CacheableSqmInterpretation(
 				SelectStatement selectStatement,
 				JdbcSelect jdbcSelect,
 				FromClauseAccess tableGroupAccess,
-				Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref,
+				Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref,
-				Map<SqmParameter,MappingModelExpressable> sqmParameterMappingModelTypes,
+				Map<SqmParameter<?>,MappingModelExpressable<?>> sqmParameterMappingModelTypes,
 				JdbcParameterBindings firstParameterBindings) {
 			this.selectStatement = selectStatement;
 			this.jdbcSelect = jdbcSelect;
@@ -438,11 +447,11 @@ public class ConcreteSqmSelectQueryPlan<R> implements SelectQueryPlan<R> {
 			return tableGroupAccess;
 		}
 
-		Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> getJdbcParamsXref() {
+		Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> getJdbcParamsXref() {
 			return jdbcParamsXref;
 		}
 
-		public Map<SqmParameter, MappingModelExpressable> getSqmParameterMappingModelTypes() {
+		public Map<SqmParameter<?>, MappingModelExpressable<?>> getSqmParameterMappingModelTypes() {
 			return sqmParameterMappingModelTypes;
 		}
 

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/DomainParameterXref.java

@@ -82,10 +82,10 @@ public class DomainParameterXref {
 			return empty();
 		}
 
-		final Map<QueryParameterImplementor<?>, List<SqmParameter>> sqmParamsByQueryParam = new IdentityHashMap<>();
+		final Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> sqmParamsByQueryParam = new IdentityHashMap<>();
 
 		final int sqmParamCount = parameterResolutions.getSqmParameters().size();
-		final Map<SqmParameter, QueryParameterImplementor<?>> queryParamBySqmParam = new IdentityHashMap<>( sqmParamCount );
+		final Map<SqmParameter<?>, QueryParameterImplementor<?>> queryParamBySqmParam = new IdentityHashMap<>( sqmParamCount );
 
 		for ( SqmParameter<?> sqmParameter : parameterResolutions.getSqmParameters() ) {
 			if ( sqmParameter instanceof JpaCriteriaParameter ) {
@@ -147,17 +147,17 @@ public class DomainParameterXref {
 
 	private final SqmStatement.ParameterResolutions parameterResolutions;
 
-	private final Map<QueryParameterImplementor<?>, List<SqmParameter>> sqmParamsByQueryParam;
+	private final Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> sqmParamsByQueryParam;
-	private final Map<SqmParameter, QueryParameterImplementor<?>> queryParamBySqmParam;
+	private final Map<SqmParameter<?>, QueryParameterImplementor<?>> queryParamBySqmParam;
 
-	private Map<SqmParameter,List<SqmParameter>> expansions;
+	private Map<SqmParameter<?>,List<SqmParameter<?>>> expansions;
 
 	/**
 	 * @implSpec Constructor is defined as public for
 	 */
 	public DomainParameterXref(
-			Map<QueryParameterImplementor<?>, List<SqmParameter>> sqmParamsByQueryParam,
+			Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> sqmParamsByQueryParam,
-			Map<SqmParameter, QueryParameterImplementor<?>> queryParamBySqmParam,
+			Map<SqmParameter<?>, QueryParameterImplementor<?>> queryParamBySqmParam,
 			SqmStatement.ParameterResolutions parameterResolutions) {
 		this.sqmParamsByQueryParam = sqmParamsByQueryParam;
 		this.queryParamBySqmParam = queryParamBySqmParam;
@@ -174,7 +174,7 @@ public class DomainParameterXref {
 	/**
 	 * Get all of the QueryParameters mapped by this xref
 	 */
-	public Map<QueryParameterImplementor<?>, List<SqmParameter>> getQueryParameters() {
+	public Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> getQueryParameters() {
 		return sqmParamsByQueryParam;
 	}
 
@@ -187,7 +187,7 @@ public class DomainParameterXref {
 	}
 
 	public int getNumberOfSqmParameters(QueryParameterImplementor<?> queryParameter) {
-		final List<SqmParameter> sqmParameters = sqmParamsByQueryParam.get( queryParameter );
+		final List<SqmParameter<?>> sqmParameters = sqmParamsByQueryParam.get( queryParameter );
 		if ( sqmParameters == null ) {
 			// this should maybe be an exception instead
 			return 0;
@@ -199,7 +199,7 @@ public class DomainParameterXref {
 	 * Get the mapping of all QueryParameters to the List of its corresponding
 	 * SqmParameters
 	 */
-	public Map<QueryParameterImplementor<?>, List<SqmParameter>> getSqmParamByQueryParam() {
+	public Map<QueryParameterImplementor<?>, List<SqmParameter<?>>> getSqmParamByQueryParam() {
 		return sqmParamsByQueryParam;
 	}
 
@@ -207,13 +207,13 @@ public class DomainParameterXref {
 		return parameterResolutions;
 	}
 
-	public List<SqmParameter> getSqmParameters(QueryParameterImplementor<?> queryParameter) {
+	public List<SqmParameter<?>> getSqmParameters(QueryParameterImplementor<?> queryParameter) {
 		return sqmParamsByQueryParam.get( queryParameter );
 	}
 
-	public QueryParameterImplementor<?> getQueryParameter(SqmParameter sqmParameter) {
+	public QueryParameterImplementor<?> getQueryParameter(SqmParameter<?> sqmParameter) {
 		if ( sqmParameter instanceof SqmJpaCriteriaParameterWrapper ) {
-			return ( (SqmJpaCriteriaParameterWrapper) sqmParameter ).getJpaCriteriaParameter();
+			return ( (SqmJpaCriteriaParameterWrapper<?>) sqmParameter ).getJpaCriteriaParameter();
 		}
 		else if ( sqmParameter instanceof QueryParameterImplementor<?> ) {
 			return (QueryParameterImplementor<?>) sqmParameter;
@@ -235,12 +235,12 @@ public class DomainParameterXref {
 		expansions.computeIfAbsent( originalSqmParameter, p -> new ArrayList<>() ).add( expansion );
 	}
 
-	public List<SqmParameter> getExpansions(SqmParameter sqmParameter) {
+	public List<SqmParameter<?>> getExpansions(SqmParameter<?> sqmParameter) {
 		if ( expansions == null ) {
 			return Collections.emptyList();
 		}
 
-		final List<SqmParameter> sqmParameters = expansions.get( sqmParameter );
+		final List<SqmParameter<?>> sqmParameters = expansions.get( sqmParameter );
 		return sqmParameters == null ? Collections.emptyList() : sqmParameters;
 	}
 
@@ -249,8 +249,8 @@ public class DomainParameterXref {
 			return;
 		}
 
-		for ( List<SqmParameter> expansionList : expansions.values() ) {
+		for ( List<SqmParameter<?>> expansionList : expansions.values() ) {
-			for ( SqmParameter expansion : expansionList ) {
+			for ( SqmParameter<?> expansion : expansionList ) {
 				queryParamBySqmParam.remove( expansion );
 			}
 		}

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/SimpleDeleteQueryPlan.java

@@ -15,6 +15,7 @@ import org.hibernate.engine.spi.SessionFactoryImplementor;
 import org.hibernate.engine.spi.SharedSessionContractImplementor;
 import org.hibernate.metamodel.mapping.EntityMappingType;
 import org.hibernate.metamodel.mapping.ForeignKeyDescriptor;
+import org.hibernate.metamodel.mapping.MappingModelExpressable;
 import org.hibernate.metamodel.mapping.MappingModelHelper;
 import org.hibernate.query.NavigablePath;
 import org.hibernate.query.spi.DomainQueryExecutionContext;
@@ -22,6 +23,7 @@ import org.hibernate.query.spi.NonSelectQueryPlan;
 import org.hibernate.query.spi.QueryEngine;
 import org.hibernate.query.spi.QueryParameterImplementor;
 import org.hibernate.query.sqm.mutation.internal.SqmMutationStrategyHelper;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.SqmTranslation;
 import org.hibernate.query.sqm.sql.SqmTranslator;
 import org.hibernate.query.sqm.sql.SqmTranslatorFactory;
@@ -43,16 +45,16 @@ import org.hibernate.sql.results.internal.SqlSelectionImpl;
  */
 public class SimpleDeleteQueryPlan implements NonSelectQueryPlan {
 	private final EntityMappingType entityDescriptor;
-	private final SqmDeleteStatement sqmDelete;
+	private final SqmDeleteStatement<?> sqmDelete;
 	private final DomainParameterXref domainParameterXref;
 
 	private JdbcDelete jdbcDelete;
 	private SqmTranslation<DeleteStatement> sqmInterpretation;
-	private Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref;
+	private Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref;
 
 	public SimpleDeleteQueryPlan(
 			EntityMappingType entityDescriptor,
-			SqmDeleteStatement sqmDelete,
+			SqmDeleteStatement<?> sqmDelete,
 			DomainParameterXref domainParameterXref) {
 		assert entityDescriptor.getEntityName().equals( sqmDelete.getTarget().getEntityName() );
 
@@ -103,7 +105,12 @@ public class SimpleDeleteQueryPlan implements NonSelectQueryPlan {
 				jdbcParamsXref,
 				factory.getDomainModel(),
 				sqmInterpretation.getFromClauseAccess()::findTableGroup,
-				sqmInterpretation.getSqmParameterMappingModelTypeResolutions()::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) sqmInterpretation.getSqmParameterMappingModelTypeResolutions().get(parameter);
+					}
+				},
 				session
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/SimpleInsertQueryPlan.java

@@ -18,6 +18,7 @@ import org.hibernate.query.spi.DomainQueryExecutionContext;
 import org.hibernate.query.spi.NonSelectQueryPlan;
 import org.hibernate.query.spi.QueryEngine;
 import org.hibernate.query.spi.QueryParameterImplementor;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.SqmTranslation;
 import org.hibernate.query.sqm.sql.SqmTranslator;
 import org.hibernate.query.sqm.sql.SqmTranslatorFactory;
@@ -34,16 +35,16 @@ import org.hibernate.sql.exec.spi.JdbcParameterBindings;
  * @author Gavin King
  */
 public class SimpleInsertQueryPlan implements NonSelectQueryPlan {
-	private final SqmInsertStatement sqmInsert;
+	private final SqmInsertStatement<?> sqmInsert;
 	private final DomainParameterXref domainParameterXref;
-	private Map<SqmParameter, MappingModelExpressable> paramTypeResolutions;
+	private Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions;
 
 	private JdbcInsert jdbcInsert;
 	private FromClauseAccess tableGroupAccess;
-	private Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref;
+	private Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref;
 
 	public SimpleInsertQueryPlan(
-			SqmInsertStatement sqmInsert,
+			SqmInsertStatement<?> sqmInsert,
 			DomainParameterXref domainParameterXref) {
 		this.sqmInsert = sqmInsert;
 		this.domainParameterXref = domainParameterXref;
@@ -97,7 +98,12 @@ public class SimpleInsertQueryPlan implements NonSelectQueryPlan {
 				jdbcParamsXref,
 				factory.getDomainModel(),
 				tableGroupAccess::findTableGroup,
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				},
 				session
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/SimpleUpdateQueryPlan.java

@@ -18,6 +18,7 @@ import org.hibernate.query.spi.DomainQueryExecutionContext;
 import org.hibernate.query.spi.NonSelectQueryPlan;
 import org.hibernate.query.spi.QueryEngine;
 import org.hibernate.query.spi.QueryParameterImplementor;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.SqmTranslation;
 import org.hibernate.query.sqm.sql.SqmTranslator;
 import org.hibernate.query.sqm.sql.SqmTranslatorFactory;
@@ -34,16 +35,16 @@ import org.hibernate.sql.exec.spi.JdbcUpdate;
  * @author Steve Ebersole
  */
 public class SimpleUpdateQueryPlan implements NonSelectQueryPlan {
-	private final SqmUpdateStatement sqmUpdate;
+	private final SqmUpdateStatement<?> sqmUpdate;
 	private final DomainParameterXref domainParameterXref;
 
 	private JdbcUpdate jdbcUpdate;
 	private FromClauseAccess tableGroupAccess;
-	private Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamsXref;
+	private Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamsXref;
-	private Map<SqmParameter,MappingModelExpressable> sqmParamMappingTypeResolutions;
+	private Map<SqmParameter<?>,MappingModelExpressable<?>> sqmParamMappingTypeResolutions;
 
 	public SimpleUpdateQueryPlan(
-			SqmUpdateStatement sqmUpdate,
+			SqmUpdateStatement<?> sqmUpdate,
 			DomainParameterXref domainParameterXref) {
 		this.sqmUpdate = sqmUpdate;
 		this.domainParameterXref = domainParameterXref;
@@ -66,7 +67,12 @@ public class SimpleUpdateQueryPlan implements NonSelectQueryPlan {
 				jdbcParamsXref,
 				factory.getDomainModel(),
 				tableGroupAccess::findTableGroup,
-				sqmParamMappingTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) sqmParamMappingTypeResolutions.get(parameter);
+					}
+				},
 				session
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/internal/SqmUtil.java

@@ -17,7 +17,6 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Function;
-import java.util.function.Supplier;
 
 import org.hibernate.NotYetImplementedFor6Exception;
 import org.hibernate.engine.spi.SessionFactoryImplementor;
@@ -70,7 +69,7 @@ public class SqmUtil {
 	private SqmUtil() {
 	}
 
-	public static void verifyIsSelectStatement(SqmStatement sqm, String hqlString) {
+	public static void verifyIsSelectStatement(SqmStatement<?> sqm, String hqlString) {
 		if ( !(sqm instanceof SqmSelectStatement) ) {
 			throw new IllegalQueryOperationException(
 					String.format(
@@ -85,7 +84,7 @@ public class SqmUtil {
 		}
 	}
 
-	public static void verifyIsNonSelectStatement(SqmStatement sqm, String hqlString) {
+	public static void verifyIsNonSelectStatement(SqmStatement<?> sqm, String hqlString) {
 		if ( !(sqm instanceof SqmDmlStatement) ) {
 			throw new IllegalQueryOperationException(
 					String.format(
@@ -100,7 +99,7 @@ public class SqmUtil {
 		}
 	}
 
-	public static Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> generateJdbcParamsXref(
+	public static Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> generateJdbcParamsXref(
 			DomainParameterXref domainParameterXref,
 			JdbcParameterBySqmParameterAccess jdbcParameterBySqmParameterAccess) {
 		if ( domainParameterXref == null || !domainParameterXref.hasParameters() ) {
@@ -108,23 +107,23 @@ public class SqmUtil {
 		}
 
 		final int queryParameterCount = domainParameterXref.getQueryParameterCount();
-		final Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> result = new IdentityHashMap<>( queryParameterCount );
+		final Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> result = new IdentityHashMap<>( queryParameterCount );
 
-		for ( Map.Entry<QueryParameterImplementor<?>, List<SqmParameter>> entry : domainParameterXref.getSqmParamByQueryParam().entrySet() ) {
+		for ( Map.Entry<QueryParameterImplementor<?>, List<SqmParameter<?>>> entry : domainParameterXref.getSqmParamByQueryParam().entrySet() ) {
 			final QueryParameterImplementor<?> queryParam = entry.getKey();
-			final List<SqmParameter> sqmParams = entry.getValue();
+			final List<SqmParameter<?>> sqmParams = entry.getValue();
 
-			final Map<SqmParameter, List<List<JdbcParameter>>> sqmParamMap = result.computeIfAbsent(
+			final Map<SqmParameter<?>, List<List<JdbcParameter>>> sqmParamMap = result.computeIfAbsent(
 					queryParam,
 					qp -> new IdentityHashMap<>( sqmParams.size() )
 			);
 
-			for ( SqmParameter sqmParam : sqmParams ) {
+			for ( SqmParameter<?> sqmParam : sqmParams ) {
 				sqmParamMap.put( sqmParam, jdbcParameterBySqmParameterAccess.getJdbcParamsBySqmParam().get( sqmParam ) );
 
-				final List<SqmParameter> expansions = domainParameterXref.getExpansions( sqmParam );
+				final List<SqmParameter<?>> expansions = domainParameterXref.getExpansions( sqmParam );
 				if ( ! expansions.isEmpty() ) {
-					for ( SqmParameter expansion : expansions ) {
+					for ( SqmParameter<?> expansion : expansions ) {
 						sqmParamMap.put( expansion, jdbcParameterBySqmParameterAccess.getJdbcParamsBySqmParam().get( expansion ) );
 						result.put( queryParam, sqmParamMap );
 					}
@@ -178,7 +177,7 @@ public class SqmUtil {
 	public static JdbcParameterBindings createJdbcParameterBindings(
 			QueryParameterBindings domainParamBindings,
 			DomainParameterXref domainParameterXref,
-			Map<QueryParameterImplementor<?>, Map<SqmParameter, List<List<JdbcParameter>>>> jdbcParamXref,
+			Map<QueryParameterImplementor<?>, Map<SqmParameter<?>, List<List<JdbcParameter>>>> jdbcParamXref,
 			MappingMetamodel domainModel,
 			Function<NavigablePath, TableGroup> tableGroupLocator,
 			SqmParameterMappingModelResolutionAccess mappingModelResolutionAccess,
@@ -187,15 +186,15 @@ public class SqmUtil {
 				domainParameterXref.getSqmParameterCount()
 		);
 
-		for ( Map.Entry<QueryParameterImplementor<?>, List<SqmParameter>> entry :
+		for ( Map.Entry<QueryParameterImplementor<?>, List<SqmParameter<?>>> entry :
 				domainParameterXref.getSqmParamByQueryParam().entrySet() ) {
 			final QueryParameterImplementor<?> queryParam = entry.getKey();
-			final List<SqmParameter> sqmParameters = entry.getValue();
+			final List<SqmParameter<?>> sqmParameters = entry.getValue();
 
 			final QueryParameterBinding<?> domainParamBinding = domainParamBindings.getBinding( queryParam );
 
-			final Map<SqmParameter, List<List<JdbcParameter>>> jdbcParamMap = jdbcParamXref.get( queryParam );
+			final Map<SqmParameter<?>, List<List<JdbcParameter>>> jdbcParamMap = jdbcParamXref.get( queryParam );
-			sqm_params: for ( SqmParameter sqmParameter : sqmParameters ) {
+			for ( SqmParameter<?> sqmParameter : sqmParameters ) {
 				final Bindable parameterType = determineParameterType(
 						domainParamBinding,
 						queryParam,
@@ -211,12 +210,12 @@ public class SqmUtil {
 					continue;
 				}
 				if ( !domainParamBinding.isBound() ) {
-					final MappingModelExpressable mappingExpressable = SqmMappingModelHelper.resolveMappingModelExpressable(
+					final MappingModelExpressable<?> mappingExpressable = SqmMappingModelHelper.resolveMappingModelExpressable(
 							sqmParameter,
 							domainModel,
 							tableGroupLocator
 					);
-					jdbc_params: for ( int i = 0; i < jdbcParamsBinds.size(); i++ ) {
+					for ( int i = 0; i < jdbcParamsBinds.size(); i++ ) {
 						final List<JdbcParameter> jdbcParams = jdbcParamsBinds.get( i );
 						mappingExpressable.forEachJdbcType(
 								(position, jdbcType) -> {
@@ -248,11 +247,11 @@ public class SqmUtil {
 					}
 
 					// an then one for each of the expansions
-					final List<SqmParameter> expansions = domainParameterXref.getExpansions( sqmParameter );
+					final List<SqmParameter<?>> expansions = domainParameterXref.getExpansions( sqmParameter );
 					assert expansions.size() == bindValues.size() - 1;
 					int expansionPosition = 0;
 					while ( valueItr.hasNext() ) {
-						final SqmParameter expansionSqmParam = expansions.get( expansionPosition++ );
+						final SqmParameter<?> expansionSqmParam = expansions.get( expansionPosition++ );
 						final List<List<JdbcParameter>> jdbcParamBinds = jdbcParamMap.get( expansionSqmParam );
 						for ( int i = 0; i < jdbcParamBinds.size(); i++ ) {
 							List<JdbcParameter> expansionJdbcParams = jdbcParamBinds.get( i );
@@ -287,7 +286,7 @@ public class SqmUtil {
 						final JdbcMapping jdbcMapping;
 
 						if ( domainParamBinding.getType() instanceof AttributeConverterTypeAdapter ) {
-							final AttributeConverterTypeAdapter adapter = (AttributeConverterTypeAdapter) domainParamBinding.getType();
+							final AttributeConverterTypeAdapter<?> adapter = (AttributeConverterTypeAdapter<?>) domainParamBinding.getType();
 							valueConverter = adapter.getAttributeConverter();
 							jdbcMapping = adapter.getJdbcMapping();
 						}
@@ -310,7 +309,7 @@ public class SqmUtil {
 								);
 							}
 
-							continue sqm_params;
+							continue;
 						}
 					}
 
@@ -394,7 +393,7 @@ public class SqmUtil {
 	public static Bindable determineParameterType(
 			QueryParameterBinding<?> binding,
 			QueryParameterImplementor<?> parameter,
-			List<SqmParameter> sqmParameters,
+			List<SqmParameter<?>> sqmParameters,
 			SqmParameterMappingModelResolutionAccess mappingModelResolutionAccess,
 			SessionFactoryImplementor sessionFactory) {
 		if ( binding.getType() != null ) {

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/MatchingIdSelectionHelper.java

@@ -19,12 +19,14 @@ import org.hibernate.engine.jdbc.spi.JdbcServices;
 import org.hibernate.engine.spi.SessionFactoryImplementor;
 import org.hibernate.metamodel.mapping.EntityIdentifierMapping;
 import org.hibernate.metamodel.mapping.EntityMappingType;
+import org.hibernate.metamodel.mapping.MappingModelExpressable;
 import org.hibernate.metamodel.mapping.PluralAttributeMapping;
 import org.hibernate.metamodel.model.domain.EntityDomainType;
 import org.hibernate.query.spi.DomainQueryExecutionContext;
 import org.hibernate.query.sqm.internal.DomainParameterXref;
 import org.hibernate.query.sqm.internal.SqmJdbcExecutionContextAdapter;
 import org.hibernate.query.sqm.internal.SqmUtil;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.internal.SqlAstQueryPartProcessingStateImpl;
 import org.hibernate.query.sqm.tree.SqmDeleteOrUpdateStatement;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
@@ -281,10 +283,16 @@ public class MatchingIdSelectionHelper {
 		final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(
 				executionContext.getQueryParameterBindings(),
 				domainParameterXref,
-				SqmUtil.generateJdbcParamsXref( domainParameterXref, sqmConverter ),
+				SqmUtil.generateJdbcParamsXref(domainParameterXref, sqmConverter),
 				factory.getDomainModel(),
 				navigablePath -> sqmConverter.getMutatingTableGroup(),
-				sqmConverter.getSqmParameterMappingModelExpressableResolutions()::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) sqmConverter.getSqmParameterMappingModelExpressableResolutions().get(parameter);
+					}
+				}
+				,
 				executionContext.getSession()
 		);
 		final LockOptions lockOptions = executionContext.getQueryOptions().getLockOptions();

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/MultiTableSqmMutationConverter.java

@@ -57,7 +57,7 @@ import org.hibernate.sql.ast.tree.update.Assignment;
  */
 public class MultiTableSqmMutationConverter extends BaseSqmToSqlAstConverter<Statement> {
 	public interface SqmParameterResolutionConsumer {
-		void accept(SqmParameter sqmParam, MappingModelExpressable mappingType, List<JdbcParameter> jdbcParameters);
+		void accept(SqmParameter<?> sqmParam, MappingModelExpressable<?> mappingType, List<JdbcParameter> jdbcParameters);
 	}
 
 	private final EntityMappingType mutatingEntityDescriptor;
@@ -231,7 +231,7 @@ public class MultiTableSqmMutationConverter extends BaseSqmToSqlAstConverter<Sta
 	}
 
 	@Override
-	protected Expression consumeSingleSqmParameter(SqmParameter sqmParameter) {
+	protected Expression consumeSingleSqmParameter(SqmParameter<?> sqmParameter) {
 		assert parameterResolutionConsumer != null;
 
 		final Expression expression = super.consumeSingleSqmParameter( sqmParameter );

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/cte/CteInsertHandler.java

@@ -49,6 +49,7 @@ import org.hibernate.query.sqm.internal.SqmJdbcExecutionContextAdapter;
 import org.hibernate.query.sqm.internal.SqmUtil;
 import org.hibernate.query.sqm.mutation.internal.InsertHandler;
 import org.hibernate.query.sqm.mutation.internal.MultiTableSqmMutationConverter;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.sql.BaseSqmToSqlAstConverter;
 import org.hibernate.query.sqm.tree.cte.SqmCteTable;
 import org.hibernate.query.sqm.tree.cte.SqmCteTableColumn;
@@ -173,7 +174,7 @@ public class CteInsertHandler implements InsertHandler {
 		);
 		final TableGroup insertingTableGroup = sqmConverter.getMutatingTableGroup();
 
-		final Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions;
+		final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
 		if ( domainParameterXref.getSqmParameterCount() == 0 ) {
 			parameterResolutions = Collections.emptyMap();
 		}
@@ -188,7 +189,7 @@ public class CteInsertHandler implements InsertHandler {
 		final int size = sqmStatement.getInsertionTargetPaths().size();
 		final List<Map.Entry<SqmCteTableColumn, Assignment>> targetPathColumns = new ArrayList<>( size );
 		final List<SqmCteTableColumn> targetPathSqmCteColumns = new ArrayList<>( size );
-		final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions = new LinkedHashMap<>();
+		final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions = new LinkedHashMap<>();
 		final NamedTableReference entityTableReference = new NamedTableReference(
 				cteTable.getCteName(),
 				TemporaryTable.DEFAULT_ALIAS,
@@ -629,7 +630,7 @@ public class CteInsertHandler implements InsertHandler {
 
 		final Expression count = createCountStar( factory, sqmConverter );
 		domainResults.add(
-				new BasicResult<>(
+				new BasicResult(
 						0,
 						null,
 						( (SqlExpressable) count).getJdbcMapping().getJavaTypeDescriptor()
@@ -656,10 +657,15 @@ public class CteInsertHandler implements InsertHandler {
 		final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(
 				executionContext.getQueryParameterBindings(),
 				domainParameterXref,
-				SqmUtil.generateJdbcParamsXref( domainParameterXref, sqmConverter ),
+				SqmUtil.generateJdbcParamsXref(domainParameterXref, sqmConverter),
 				factory.getDomainModel(),
 				navigablePath -> sqmConverter.getMutatingTableGroup(),
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				},
 				executionContext.getSession()
 		);
 		final JdbcSelect select = translator.translate( jdbcParameterBindings, executionContext.getQueryOptions() );
@@ -694,7 +700,7 @@ public class CteInsertHandler implements InsertHandler {
 			List<Map.Entry<SqmCteTableColumn, Assignment>> assignments,
 			boolean assignsId,
 			MultiTableSqmMutationConverter sqmConverter,
-			Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions,
 			SessionFactoryImplementor factory) {
 		final TableGroup updatingTableGroup = sqmConverter.getMutatingTableGroup();
 		final EntityMappingType entityDescriptor = getEntityDescriptor();

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/InsertExecutionDelegate.java

@@ -42,6 +42,7 @@ import org.hibernate.query.spi.DomainQueryExecutionContext;
 import org.hibernate.query.sqm.internal.DomainParameterXref;
 import org.hibernate.query.sqm.internal.SqmUtil;
 import org.hibernate.query.sqm.mutation.internal.MultiTableSqmMutationConverter;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.query.sqm.tree.insert.SqmInsertStatement;
 import org.hibernate.sql.ast.tree.expression.ColumnReference;
@@ -89,7 +90,7 @@ public class InsertExecutionDelegate implements TableBasedInsertHandler.Executio
 	private final JdbcParameterBindings jdbcParameterBindings;
 
 	private final Map<TableReference, List<Assignment>> assignmentsByTable;
-	private final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions;
+	private final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions;
 	private final SessionFactoryImplementor sessionFactory;
 
 	public InsertExecutionDelegate(
@@ -103,8 +104,8 @@ public class InsertExecutionDelegate implements TableBasedInsertHandler.Executio
 			Map<String, TableReference> tableReferenceByAlias,
 			List<Assignment> assignments,
 			InsertStatement insertStatement,
-			Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions,
-			Map<SqmParameter, MappingModelExpressable> paramTypeResolutions,
+			Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions,
 			DomainQueryExecutionContext executionContext) {
 		this.sqmInsert = sqmInsert;
 		this.sqmConverter = sqmConverter;
@@ -134,7 +135,13 @@ public class InsertExecutionDelegate implements TableBasedInsertHandler.Executio
 				),
 				sessionFactory.getDomainModel(),
 				navigablePath -> insertingTableGroup,
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				}
+				,
 				executionContext.getSession()
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/RestrictedDeleteExecutionDelegate.java

@@ -39,6 +39,7 @@ import org.hibernate.query.sqm.internal.SqmJdbcExecutionContextAdapter;
 import org.hibernate.query.sqm.internal.SqmUtil;
 import org.hibernate.query.sqm.mutation.internal.MultiTableSqmMutationConverter;
 import org.hibernate.query.sqm.mutation.internal.SqmMutationStrategyHelper;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.tree.delete.SqmDeleteStatement;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.sql.ast.spi.SqlExpressionResolver;
@@ -121,8 +122,8 @@ public class RestrictedDeleteExecutionDelegate implements TableBasedDeleteHandle
 		);
 		assert hierarchyRootTableReference != null;
 
-		final Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions;
+		final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
-		final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions;
+		final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions;
 
 		if ( domainParameterXref.getSqmParameterCount() == 0 ) {
 			parameterResolutions = Collections.emptyMap();
@@ -203,8 +204,8 @@ public class RestrictedDeleteExecutionDelegate implements TableBasedDeleteHandle
 	private int executeWithoutIdTable(
 			Predicate suppliedPredicate,
 			TableGroup tableGroup,
-			Map<SqmParameter, List<List<JdbcParameter>>> restrictionSqmParameterResolutions,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> restrictionSqmParameterResolutions,
-			Map<SqmParameter, MappingModelExpressable> paramTypeResolutions,
+			Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions,
 			SqlExpressionResolver sqlExpressionResolver,
 			ExecutionContext executionContext) {
 		assert entityDescriptor == entityDescriptor.getRootEntityDescriptor();
@@ -234,7 +235,12 @@ public class RestrictedDeleteExecutionDelegate implements TableBasedDeleteHandle
 				),
 				sessionFactory.getDomainModel(),
 				navigablePath -> tableGroup,
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				},
 				executionContext.getSession()
 		);
 
@@ -466,8 +472,8 @@ public class RestrictedDeleteExecutionDelegate implements TableBasedDeleteHandle
 	private int executeWithIdTable(
 			Predicate predicate,
 			TableGroup deletingTableGroup,
-			Map<SqmParameter, List<List<JdbcParameter>>> restrictionSqmParameterResolutions,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> restrictionSqmParameterResolutions,
-			Map<SqmParameter, MappingModelExpressable> paramTypeResolutions,
+			Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions,
 			ExecutionContext executionContext) {
 		final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(
 				executionContext.getQueryParameterBindings(),
@@ -478,7 +484,12 @@ public class RestrictedDeleteExecutionDelegate implements TableBasedDeleteHandle
 				),
 				sessionFactory.getDomainModel(),
 				navigablePath -> deletingTableGroup,
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				},
 				executionContext.getSession()
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/TableBasedDeleteHandler.java

@@ -80,7 +80,7 @@ public class TableBasedDeleteHandler
 	}
 
 	@Override
-	public SqmDeleteStatement getSqmDeleteOrUpdateStatement() {
+	public SqmDeleteStatement<?> getSqmDeleteOrUpdateStatement() {
-		return (SqmDeleteStatement) super.getSqmDeleteOrUpdateStatement();
+		return (SqmDeleteStatement<?>) super.getSqmDeleteOrUpdateStatement();
 	}
 }

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/TableBasedInsertHandler.java

@@ -129,7 +129,7 @@ public class TableBasedInsertHandler implements InsertHandler {
 
 		final TableGroup insertingTableGroup = converterDelegate.getMutatingTableGroup();
 
-		final Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions;
+		final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
 		if ( domainParameterXref.getSqmParameterCount() == 0 ) {
 			parameterResolutions = Collections.emptyMap();
 		}
@@ -142,7 +142,7 @@ public class TableBasedInsertHandler implements InsertHandler {
 		// information about the target paths
 
 		final List<Assignment> targetPathColumns = new ArrayList<>();
-		final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions = new LinkedHashMap<>();
+		final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions = new LinkedHashMap<>();
 		final NamedTableReference entityTableReference = new NamedTableReference(
 				entityTable.getTableExpression(),
 				TemporaryTable.DEFAULT_ALIAS,

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/TableBasedUpdateHandler.java

@@ -79,13 +79,13 @@ public class TableBasedUpdateHandler
 		this.entityDescriptor = sessionFactory.getDomainModel().getEntityDescriptor( targetEntityName );
 	}
 
-	protected SqmUpdateStatement getSqmUpdate() {
+	protected SqmUpdateStatement<?> getSqmUpdate() {
 		return getSqmDeleteOrUpdateStatement();
 	}
 
 	@Override
-	public SqmUpdateStatement getSqmDeleteOrUpdateStatement() {
+	public SqmUpdateStatement<?> getSqmDeleteOrUpdateStatement() {
-		return (SqmUpdateStatement) super.getSqmDeleteOrUpdateStatement();
+		return (SqmUpdateStatement<?>) super.getSqmDeleteOrUpdateStatement();
 	}
 
 
@@ -131,7 +131,7 @@ public class TableBasedUpdateHandler
 		);
 		assert hierarchyRootTableReference != null;
 
-		final Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions;
+		final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
 		if ( domainParameterXref.getSqmParameterCount() == 0 ) {
 			parameterResolutions = Collections.emptyMap();
 		}
@@ -144,7 +144,7 @@ public class TableBasedUpdateHandler
 		// information about the assignments
 
 		final List<Assignment> assignments = new ArrayList<>();
-		final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions = new LinkedHashMap<>();
+		final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions = new LinkedHashMap<>();
 
 		converterDelegate.visitSetClause(
 				getSqmDeleteOrUpdateStatement().getSetClause(),

hibernate-core/src/main/java/org/hibernate/query/sqm/mutation/internal/temptable/UpdateExecutionDelegate.java

@@ -27,6 +27,7 @@ import org.hibernate.query.spi.DomainQueryExecutionContext;
 import org.hibernate.query.sqm.internal.DomainParameterXref;
 import org.hibernate.query.sqm.internal.SqmUtil;
 import org.hibernate.query.sqm.mutation.internal.MultiTableSqmMutationConverter;
+import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.query.sqm.tree.update.SqmUpdateStatement;
 import org.hibernate.sql.ast.tree.expression.ColumnReference;
@@ -48,7 +49,7 @@ import org.hibernate.sql.exec.spi.JdbcUpdate;
  * @author Steve Ebersole
  */
 public class UpdateExecutionDelegate implements TableBasedUpdateHandler.ExecutionDelegate {
-	private final SqmUpdateStatement sqmUpdate;
+	private final SqmUpdateStatement<?> sqmUpdate;
 	private final MultiTableSqmMutationConverter sqmConverter;
 	private final TemporaryTable idTable;
 	private final AfterUseAction afterUseAction;
@@ -62,7 +63,7 @@ public class UpdateExecutionDelegate implements TableBasedUpdateHandler.Executio
 	private final JdbcParameterBindings jdbcParameterBindings;
 
 	private final Map<TableReference, List<Assignment>> assignmentsByTable;
-	private final Map<SqmParameter, MappingModelExpressable> paramTypeResolutions;
+	private final Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions;
 	private final SessionFactoryImplementor sessionFactory;
 
 	public UpdateExecutionDelegate(
@@ -77,8 +78,8 @@ public class UpdateExecutionDelegate implements TableBasedUpdateHandler.Executio
 			Map<String, TableReference> tableReferenceByAlias,
 			List<Assignment> assignments,
 			Predicate suppliedPredicate,
-			Map<SqmParameter, List<List<JdbcParameter>>> parameterResolutions,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions,
-			Map<SqmParameter, MappingModelExpressable> paramTypeResolutions,
+			Map<SqmParameter<?>, MappingModelExpressable<?>> paramTypeResolutions,
 			DomainQueryExecutionContext executionContext) {
 		this.sqmUpdate = sqmUpdate;
 		this.sqmConverter = sqmConverter;
@@ -108,7 +109,12 @@ public class UpdateExecutionDelegate implements TableBasedUpdateHandler.Executio
 				),
 				sessionFactory.getDomainModel(),
 				navigablePath -> updatingTableGroup,
-				paramTypeResolutions::get,
+				new SqmParameterMappingModelResolutionAccess() {
+					@Override @SuppressWarnings("unchecked")
+					public <T> MappingModelExpressable<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
+						return (MappingModelExpressable<T>) paramTypeResolutions.get(parameter);
+					}
+				},
 				executionContext.getSession()
 		);
 

hibernate-core/src/main/java/org/hibernate/query/sqm/produce/function/internal/PatternRenderer.java

@@ -134,14 +134,14 @@ public class PatternRenderer {
 	@SuppressWarnings({ "UnusedDeclaration" })
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> args,
+			List<? extends SqlAstNode> args,
 			SqlAstTranslator<?> translator) {
 		render( sqlAppender, args, null, translator );
 	}
 
 	public void render(
 			SqlAppender sqlAppender,
-			List<SqlAstNode> args,
+			List<? extends SqlAstNode> args,
 			Predicate filter,
 			SqlAstTranslator<?> translator) {
 		final int numberOfArguments = args.size();

hibernate-core/src/main/java/org/hibernate/query/sqm/spi/JdbcParameterBySqmParameterAccess.java

@@ -22,5 +22,5 @@ public interface JdbcParameterBySqmParameterAccess {
 	/**
 	 * The mapping between an SqmParameter and all of its JDBC parameters
 	 */
-	Map<SqmParameter, List<List<JdbcParameter>>> getJdbcParamsBySqmParam();
+	Map<SqmParameter<?>, List<List<JdbcParameter>>> getJdbcParamsBySqmParam();
 }

hibernate-core/src/main/java/org/hibernate/query/sqm/sql/BaseSqmToSqlAstConverter.java

@@ -233,7 +233,6 @@ import org.hibernate.sql.ast.spi.SqlAstQueryPartProcessingState;
 import org.hibernate.sql.ast.spi.SqlAstTreeHelper;
 import org.hibernate.sql.ast.spi.SqlExpressionResolver;
 import org.hibernate.sql.ast.spi.SqlSelection;
-import org.hibernate.sql.ast.tree.SqlAstNode;
 import org.hibernate.sql.ast.tree.Statement;
 import org.hibernate.sql.ast.tree.cte.CteColumn;
 import org.hibernate.sql.ast.tree.cte.CteStatement;
@@ -349,7 +348,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 	private final DomainParameterXref domainParameterXref;
 	private final QueryParameterBindings domainParameterBindings;
-	private final Map<SqmParameter,MappingModelExpressable> sqmParameterMappingModelTypes = new LinkedHashMap<>();
+	private final Map<SqmParameter<?>,MappingModelExpressable<?>> sqmParameterMappingModelTypes = new LinkedHashMap<>();
 	private final Map<JpaCriteriaParameter<?>, SqmJpaCriteriaParameterWrapper<?>> jpaCriteriaParamResolutions;
 	private final List<DomainResult<?>> domainResults;
 	private final EntityGraphTraversalState entityGraphTraversalState;
@@ -437,7 +436,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				.getJpaCriteriaParamResolutions();
 	}
 
-	public Map<SqmParameter, MappingModelExpressable> getSqmParameterMappingModelExpressableResolutions() {
+	public Map<SqmParameter<?>,MappingModelExpressable<?>> getSqmParameterMappingModelExpressableResolutions() {
 		return sqmParameterMappingModelTypes;
 	}
 
@@ -597,7 +596,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	// Update statement
 
 	@Override
-	public UpdateStatement visitUpdateStatement(SqmUpdateStatement sqmStatement) {
+	public UpdateStatement visitUpdateStatement(SqmUpdateStatement<?> sqmStatement) {
 		Map<String, CteStatement> cteStatements = this.visitCteContainer( sqmStatement );
 
 		final SqmRoot<?> sqmTarget = sqmStatement.getTarget();
@@ -754,9 +753,9 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					getFromClauseIndex()
 			);
 
-			final SqmPathInterpretation assignedPathInterpretation;
+			final SqmPathInterpretation<?> assignedPathInterpretation;
 			try {
-				assignedPathInterpretation = (SqmPathInterpretation) sqmAssignment.getTargetPath().accept( this );
+				assignedPathInterpretation = (SqmPathInterpretation<?>) sqmAssignment.getTargetPath().accept( this );
 			}
 			finally {
 				popProcessingStateStack();
@@ -764,7 +763,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 			inferrableTypeAccessStack.push( assignedPathInterpretation::getExpressionType );
 
-			final List<ColumnReference> valueColumnReferences = new ArrayList<>();
+//			final List<ColumnReference> valueColumnReferences = new ArrayList<>();
 			pushProcessingState(
 					new SqlAstProcessingStateImpl(
 							getCurrentProcessingState(),
@@ -778,7 +777,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 									.getSqlExpressionResolver()
 									.resolveSqlExpression( key, creator );
 							assert expression instanceof ColumnReference;
-							valueColumnReferences.add( (ColumnReference) expression );
+//							valueColumnReferences.add( (ColumnReference) expression );
 							return expression;
 						}
 					},
@@ -858,7 +857,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					true,
 					rootPath,
 					statement.getRoot().getAlias(),
-					() -> predicate -> additionalRestrictions = SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
+					() -> predicate -> additionalRestrictions
+							= SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
 					this,
 					getCreationContext()
 			);
@@ -937,7 +937,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					true,
 					rootPath,
 					sqmStatement.getTarget().getExplicitAlias(),
-					() -> predicate -> additionalRestrictions = SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
+					() -> predicate -> additionalRestrictions
+							= SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
 					this,
 					getCreationContext()
 			);
@@ -1011,7 +1012,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					true,
 					rootPath,
 					sqmStatement.getTarget().getExplicitAlias(),
-					() -> predicate -> additionalRestrictions = SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
+					() -> predicate -> additionalRestrictions
+							= SqlAstTreeHelper.combinePredicates( additionalRestrictions, predicate ),
 					this,
 					getCreationContext()
 			);
@@ -1042,8 +1044,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				throw new SemanticException( "Not expecting multiple table references for an SQM INSERT-SELECT" );
 			}
 
-			List<SqmValues> valuesList = sqmStatement.getValuesList();
+			for ( SqmValues sqmValues : sqmStatement.getValuesList() ) {
-			for ( SqmValues sqmValues : valuesList ) {
 				final Values values = visitValues( sqmValues );
 				additionalInsertValues.applyValues( values );
 				insertStatement.getValuesList().add( values );
@@ -1249,7 +1250,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 							return true;
 						}
 					}
-					final String fragment = ( (BulkInsertionCapableIdentifierGenerator) identifierGenerator ).determineBulkInsertionIdentifierGenerationSelectFragment(
+					final String fragment = ( (BulkInsertionCapableIdentifierGenerator) identifierGenerator )
+							.determineBulkInsertionIdentifierGenerationSelectFragment(
 									sessionFactory.getSqlStringGenerationContext()
 							);
 					// The position is irrelevant as this is only needed for insert
@@ -1392,15 +1394,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			forEachCteColumn(
 					cteTable,
 					specification.getCteColumn(),
-					cteColumn -> {
+					cteColumn -> searchClauseSpecifications.add(
-						searchClauseSpecifications.add(
 							new SearchClauseSpecification(
 									cteColumn,
 									specification.getSortOrder(),
 									specification.getNullPrecedence()
 							)
-						);
+					)
-					}
 			);
 		}
 
@@ -1473,14 +1473,12 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			}
 			if ( valueMapping instanceof EmbeddableValuedModelPart ) {
 				valueMapping.forEachJdbcType(
-						(index, jdbcMapping) -> {
+						(index, jdbcMapping) -> sqlCteColumns.add(
-							sqlCteColumns.add(
 								new CteColumn(
 										sqmCteTableColumn.getColumnName() + "_" + index,
 										jdbcMapping
 								)
-							);
+						)
-						}
 				);
 			}
 			else {
@@ -1715,13 +1713,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			final TableGroup root = roots.get( 0 );
 
 			if ( CollectionHelper.isNotEmpty( collectionFilterPredicates ) ) {
-				root.getTableGroupJoins().forEach( (tableGroupJoin) -> {
+				root.getTableGroupJoins().forEach( (tableGroupJoin) ->
 						collectionFilterPredicates.forEach( (alias, predicates) -> {
 							if ( tableGroupJoin.getJoinedGroup().getGroupAlias().equals( alias ) ) {
 								tableGroupJoin.applyPredicate( predicates.getPredicate() );
 							}
-					} );
+						} )
-				} );
+				);
 			}
 		}
 	}
@@ -2036,13 +2034,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		);
 	}
 
-	public QuerySpec visitOffsetAndFetchExpressions(QuerySpec sqlQuerySpec, SqmQuerySpec<?> sqmQuerySpec) {
+//	public QuerySpec visitOffsetAndFetchExpressions(QuerySpec sqlQuerySpec, SqmQuerySpec<?> sqmQuerySpec) {
-		final Expression offsetExpression = visitOffsetExpression( sqmQuerySpec.getOffsetExpression() );
+//		final Expression offsetExpression = visitOffsetExpression( sqmQuerySpec.getOffsetExpression() );
-		final Expression fetchExpression = visitFetchExpression( sqmQuerySpec.getFetchExpression() );
+//		final Expression fetchExpression = visitFetchExpression( sqmQuerySpec.getFetchExpression() );
-		sqlQuerySpec.setOffsetClauseExpression( offsetExpression );
+//		sqlQuerySpec.setOffsetClauseExpression( offsetExpression );
-		sqlQuerySpec.setFetchClauseExpression( fetchExpression, sqmQuerySpec.getFetchClauseType() );
+//		sqlQuerySpec.setFetchClauseExpression( fetchExpression, sqmQuerySpec.getFetchClauseType() );
-		return sqlQuerySpec;
+//		return sqlQuerySpec;
-	}
+//	}
 
 	@Override
 	public Expression visitOffsetExpression(SqmExpression<?> expression) {
@@ -2958,7 +2956,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	@Override
-	public Expression visitQualifiedEntityJoin(SqmEntityJoin sqmJoin) {
+	public Expression visitQualifiedEntityJoin(SqmEntityJoin<?> sqmJoin) {
 		// todo (6.0) : have this resolve to TableGroup instead?
 		//		- trying to remove tracking of TableGroupJoin in the x-refs
 
@@ -3028,7 +3026,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			EntityMappingType mappingType;
 			if ( path instanceof SqmTreatedPath ) {
 				mappingType = creationContext.getDomainModel()
-						.findEntityDescriptor( ( (SqmTreatedPath) path ).getTreatTarget().getHibernateEntityName() );
+						.findEntityDescriptor( ( (SqmTreatedPath<?,?>) path ).getTreatTarget().getHibernateEntityName() );
 			}
 			else {
 				mappingType = mapping.getEntityMappingType();
@@ -3371,7 +3369,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					.getBasicTypeForJavaType( Integer.class );
 			final Expression expression = new SelfRenderingAggregateFunctionSqlAstExpression(
 					functionDescriptor.getName(),
-					functionDescriptor::render,
+					functionDescriptor,
 					Collections.singletonList( new QueryLiteral<>( 1, integerType ) ),
 					null,
 					integerType,
@@ -3537,8 +3535,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				tupleElements = new ArrayList<>( jdbcTypeCount );
 			}
 			modelPart.forEachSelectable(
-					(selectionIndex, selectionMapping) -> {
+					(selectionIndex, selectionMapping) -> tupleElements.add(
-						tupleElements.add(
 							new ColumnReference(
 									tableGroup.resolveTableReference(
 											navigablePath,
@@ -3547,25 +3544,25 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 									selectionMapping,
 									creationContext.getSessionFactory()
 							)
-						);
+					)
-					}
 			);
 			if ( jdbcTypeCount != 1 ) {
 				arguments.add( new SqlTuple( tupleElements, modelPart ) );
 			}
 			final Expression expression = new SelfRenderingAggregateFunctionSqlAstExpression(
 					functionDescriptor.getName(),
-					functionDescriptor::render,
+					functionDescriptor,
-					(List<SqlAstNode>) (List<?>) arguments,
+					arguments,
 					null,
 					(AllowableFunctionReturnType<?>) modelPart.getJdbcMappings().get( 0 ),
 					modelPart
 			);
 			subQuerySpec.getSelectClause().addSqlSelection( new SqlSelectionImpl( 1, 0, expression ) );
 
+			NavigablePath parent = pluralPartPath.getPluralDomainPath().getNavigablePath().getParent();
 			subQuerySpec.applyPredicate(
 					pluralAttributeMapping.getKeyDescriptor().generateJoinPredicate(
-							parentFromClauseAccess.findTableGroup( pluralPartPath.getPluralDomainPath().getNavigablePath().getParent() ),
+							parentFromClauseAccess.findTableGroup( parent ),
 							tableGroup,
 							SqlAstJoinType.INNER,
 							getSqlExpressionResolver(),
@@ -3776,8 +3773,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		else {
 			final List<ColumnReference> resultColumnReferences = new ArrayList<>( jdbcTypeCount );
 			modelPart.forEachSelectable(
-					(selectionIndex, selectionMapping) -> {
+					(selectionIndex, selectionMapping) -> resultColumnReferences.add(
-						resultColumnReferences.add(
 							new ColumnReference(
 									identifierVariable,
 									tableReference.getColumnNames().get( selectionIndex ),
@@ -3787,8 +3783,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 									selectionMapping.getJdbcMapping(),
 									creationContext.getSessionFactory()
 							)
-						);
+					)
-					}
 			);
 			return new SqlTuple( resultColumnReferences, modelPart );
 		}
@@ -3851,7 +3846,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 	@Override
 	public Expression visitLiteral(SqmLiteral<?> literal) {
-		final Supplier<MappingModelExpressable> inferableTypeAccess = inferrableTypeAccessStack.getCurrent();
+		final Supplier<MappingModelExpressable<?>> inferableTypeAccess = inferrableTypeAccessStack.getCurrent();
 
 		if ( literal instanceof SqmLiteralNull ) {
 			MappingModelExpressable<?> mappingModelExpressable = inferableTypeAccess.get();
@@ -3884,7 +3879,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 		if ( inferableExpressable instanceof ConvertibleModelPart ) {
 			final ConvertibleModelPart convertibleModelPart = (ConvertibleModelPart) inferableExpressable;
-			final BasicValueConverter<Object, Object> valueConverter = convertibleModelPart.getValueConverter();
+			final BasicValueConverter valueConverter = convertibleModelPart.getValueConverter();
 
 			if ( valueConverter != null ) {
 				final Object literalValue = literal.getLiteralValue();
@@ -3980,9 +3975,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			embeddableValuedModelPart.forEachJdbcValue(
 					literal.getLiteralValue(),
 					null,
-					(selectionIndex, value, jdbcMapping) -> {
+					(selectionIndex, value, jdbcMapping)
-						list.add( new QueryLiteral<>( value, (BasicValuedMapping) jdbcMapping ) );
+							-> list.add( new QueryLiteral<>( value, (BasicValuedMapping) jdbcMapping ) ),
-					},
 					null
 			);
 			return new SqlTuple( list, expressable );
@@ -4021,9 +4015,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				associationKeyPart.forEachJdbcValue(
 						associationKey,
 						null,
-						(selectionIndex, value, jdbcMapping) -> {
+						(selectionIndex, value, jdbcMapping)
-							list.add( new QueryLiteral<>( value, (BasicValuedMapping) jdbcMapping ) );
+								-> list.add( new QueryLiteral<>( value, (BasicValuedMapping) jdbcMapping ) ),
-						},
 						null
 				);
 				return new SqlTuple( list, associationKeyPart );
@@ -4054,11 +4047,11 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 	}
 
-	private final Map<SqmParameter, List<List<JdbcParameter>>> jdbcParamsBySqmParam = new IdentityHashMap<>();
+	private final Map<SqmParameter<?>, List<List<JdbcParameter>>> jdbcParamsBySqmParam = new IdentityHashMap<>();
 	private final JdbcParameters jdbcParameters = new JdbcParametersImpl();
 
 	@Override
-	public Map<SqmParameter, List<List<JdbcParameter>>> getJdbcParamsBySqmParam() {
+	public Map<SqmParameter<?>, List<List<JdbcParameter>>> getJdbcParamsBySqmParam() {
 		return jdbcParamsBySqmParam;
 	}
 
@@ -4068,9 +4061,9 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	protected Expression consumeSqmParameter(
-			SqmParameter sqmParameter,
+			SqmParameter<?> sqmParameter,
 			BiConsumer<Integer,JdbcParameter> jdbcParameterConsumer) {
-		final MappingModelExpressable valueMapping = determineValueMapping( sqmParameter );
+		final MappingModelExpressable<?> valueMapping = determineValueMapping( sqmParameter );
 
 		final List<JdbcParameter> jdbcParametersForSqm = new ArrayList<>();
 
@@ -4089,7 +4082,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				.add( jdbcParametersForSqm );
 
 		final QueryParameterImplementor<?> queryParameter = domainParameterXref.getQueryParameter( sqmParameter );
-		final QueryParameterBinding<?> binding = domainParameterBindings.getBinding( queryParameter );
+		final QueryParameterBinding binding = domainParameterBindings.getBinding( queryParameter );
 		if ( binding.setType( valueMapping ) ) {
 			replaceJdbcParametersType(
 					sqmParameter,
@@ -4107,8 +4100,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	private void replaceJdbcParametersType(
-			SqmParameter sourceSqmParameter,
+			SqmParameter<?> sourceSqmParameter,
-			List<SqmParameter> sqmParameters,
+			List<SqmParameter<?>> sqmParameters,
 			MappingModelExpressable<?> valueMapping) {
 		final JdbcMapping jdbcMapping = valueMapping.getJdbcMappings().get( 0 );
 		for ( SqmParameter<?> sqmParameter : sqmParameters ) {
@@ -4132,20 +4125,20 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 	}
 
-	protected Expression consumeSqmParameter(SqmParameter sqmParameter) {
+	protected Expression consumeSqmParameter(SqmParameter<?> sqmParameter) {
 		if ( sqmParameter.allowMultiValuedBinding() ) {
 			final QueryParameterImplementor<?> domainParam = domainParameterXref.getQueryParameter( sqmParameter );
-			final QueryParameterBinding domainParamBinding = domainParameterBindings.getBinding( domainParam );
+			final QueryParameterBinding<?> domainParamBinding = domainParameterBindings.getBinding( domainParam );
 
 			if ( !domainParamBinding.isMultiValued() ) {
 				return consumeSingleSqmParameter( sqmParameter );
 			}
 
-			final Collection bindValues = domainParamBinding.getBindValues();
+			final Collection<?> bindValues = domainParamBinding.getBindValues();
 			final List<Expression> expressions = new ArrayList<>( bindValues.size());
 			boolean first = true;
 			for ( Object bindValue : bindValues ) {
-				final SqmParameter sqmParamToConsume;
+				final SqmParameter<?> sqmParamToConsume;
 				// for each bind value create an "expansion"
 				if ( first ) {
 					sqmParamToConsume = sqmParameter;
@@ -4165,8 +4158,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 	}
 
-	protected Expression consumeSingleSqmParameter(SqmParameter sqmParameter) {
+	protected Expression consumeSingleSqmParameter(SqmParameter<?> sqmParameter) {
-		final MappingModelExpressable valueMapping = determineValueMapping( sqmParameter );
+		final MappingModelExpressable<?> valueMapping = determineValueMapping( sqmParameter );
 
 		final List<JdbcParameter> jdbcParametersForSqm = new ArrayList<>();
 
@@ -4182,7 +4175,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				.add( jdbcParametersForSqm );
 
 		final QueryParameterImplementor<?> queryParameter = domainParameterXref.getQueryParameter( sqmParameter );
-		final QueryParameterBinding<?> binding = domainParameterBindings.getBinding( queryParameter );
+		final QueryParameterBinding binding = domainParameterBindings.getBinding( queryParameter );
 		if ( binding.setType( valueMapping ) ) {
 			replaceJdbcParametersType(
 					sqmParameter,
@@ -4199,33 +4192,33 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		);
 	}
 
-	protected MappingModelExpressable<?> lenientlyResolveMappingExpressable(SqmExpressable<?> nodeType) {
+//	protected MappingModelExpressable<?> lenientlyResolveMappingExpressable(SqmExpressable<?> nodeType) {
-		return resolveMappingExpressable( nodeType );
+//		return resolveMappingExpressable( nodeType );
-	}
+//	}
-
+//
-	protected MappingModelExpressable<?> resolveMappingExpressable(SqmExpressable<?> nodeType) {
+//	protected MappingModelExpressable<?> resolveMappingExpressable(SqmExpressable<?> nodeType) {
-		final MappingModelExpressable valueMapping = getCreationContext().getDomainModel().resolveMappingExpressable(
+//		final MappingModelExpressable<?> valueMapping = getCreationContext().getDomainModel().resolveMappingExpressable(
-				nodeType,
+//				nodeType,
-				this::findTableGroupByPath
+//				this::findTableGroupByPath
-		);
+//		);
-
+//
-		if ( valueMapping == null ) {
+//		if ( valueMapping == null ) {
-			final Supplier<MappingModelExpressable> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
+//			final Supplier<MappingModelExpressable<?>> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
-			if ( currentExpressableSupplier != null ) {
+//			if ( currentExpressableSupplier != null ) {
-				return currentExpressableSupplier.get();
+//				return currentExpressableSupplier.get();
-			}
+//			}
-		}
+//		}
-
+//
-		if ( valueMapping == null ) {
+//		if ( valueMapping == null ) {
-			throw new ConversionException( "Could not determine ValueMapping for SqmExpressable: " + nodeType );
+//			throw new ConversionException( "Could not determine ValueMapping for SqmExpressable: " + nodeType );
-		}
+//		}
-
+//
-		return valueMapping;
+//		return valueMapping;
-	}
+//	}
 
 	protected MappingModelExpressable<?> determineValueMapping(SqmExpression<?> sqmExpression) {
 		if ( sqmExpression instanceof SqmParameter ) {
-			return determineValueMapping( (SqmParameter) sqmExpression );
+			return determineValueMapping( (SqmParameter<?>) sqmExpression );
 		}
 
 		final MappingMetamodel domainModel = getCreationContext().getDomainModel();
@@ -4241,7 +4234,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 		// The model type of an enum literal is always inferred
 		if ( sqmExpression instanceof SqmEnumLiteral<?> ) {
-			final Supplier<MappingModelExpressable> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
+			final Supplier<MappingModelExpressable<?>> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
 			if ( currentExpressableSupplier != null ) {
 				return currentExpressableSupplier.get();
 			}
@@ -4304,13 +4297,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			// We can't determine the type of the expression
 			return null;
 		}
-		final MappingModelExpressable valueMapping = domainModel.resolveMappingExpressable(
+		final MappingModelExpressable<?> valueMapping = domainModel.resolveMappingExpressable(
 				nodeType,
 				this::findTableGroupByPath
 		);
 
 		if ( valueMapping == null ) {
-			final Supplier<MappingModelExpressable> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
+			final Supplier<MappingModelExpressable<?>> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
 			if ( currentExpressableSupplier != null ) {
 				return currentExpressableSupplier.get();
 			}
@@ -4324,9 +4317,9 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	protected MappingModelExpressable<?> getInferredValueMapping() {
-		final Supplier<MappingModelExpressable> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
+		final Supplier<MappingModelExpressable<?>> currentExpressableSupplier = inferrableTypeAccessStack.getCurrent();
 		if ( currentExpressableSupplier != null ) {
-			final MappingModelExpressable inferredMapping = currentExpressableSupplier.get();
+			final MappingModelExpressable<?> inferredMapping = currentExpressableSupplier.get();
 			if ( inferredMapping != null ) {
 				if ( inferredMapping instanceof PluralAttributeMapping ) {
 					return ( (PluralAttributeMapping) inferredMapping ).getElementDescriptor();
@@ -4374,7 +4367,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 
 		if ( parameterSqmType instanceof SqmPath ) {
-			final SqmPath sqmPath = (SqmPath) parameterSqmType;
+			final SqmPath<?> sqmPath = (SqmPath<?>) parameterSqmType;
 			final NavigablePath navigablePath = sqmPath.getNavigablePath();
 			if ( navigablePath.getParent() != null ) {
 				final TableGroup tableGroup = getFromClauseAccess().getTableGroup( navigablePath.getParent() );
@@ -4415,13 +4408,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		throw new ConversionException( "Could not determine ValueMapping for SqmParameter: " + sqmParameter );
 	}
 
-	protected final Stack<Supplier<MappingModelExpressable>> inferrableTypeAccessStack = new StandardStack<>(
+	protected final Stack<Supplier<MappingModelExpressable<?>>> inferrableTypeAccessStack = new StandardStack<>(
 			() -> null
 	);
 
 	private void resolveSqmParameter(
-			SqmParameter expression,
+			SqmParameter<?> expression,
-			MappingModelExpressable valueMapping,
+			MappingModelExpressable<?> valueMapping,
 			BiConsumer<Integer,JdbcParameter> jdbcParameterConsumer) {
 		sqmParameterMappingModelTypes.put( expression, valueMapping );
 		final Bindable bindable;
@@ -4608,8 +4601,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 
 	@Override
 	public Object visitBinaryArithmeticExpression(SqmBinaryArithmetic<?> expression) {
-		SqmExpression leftOperand = expression.getLeftHandOperand();
+		SqmExpression<?> leftOperand = expression.getLeftHandOperand();
-		SqmExpression rightOperand = expression.getRightHandOperand();
+		SqmExpression<?> rightOperand = expression.getRightHandOperand();
 
 		boolean durationToRight = TypeConfiguration.isDuration( rightOperand.getNodeType() );
 		TypeConfiguration typeConfiguration = getCreationContext().getDomainModel().getTypeConfiguration();
@@ -4707,10 +4700,10 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				adjustedTimestamp = toSqlExpression( expression.getLeftHandOperand().accept( this ) );
 				JdbcMappingContainer type = adjustedTimestamp.getExpressionType();
 				if ( type instanceof SqmExpressable ) {
-					adjustedTimestampType = (SqmExpressable) type;
+					adjustedTimestampType = (SqmExpressable<?>) type;
 				}
 				else if (type instanceof AttributeMapping ) {
-					adjustedTimestampType = (SqmExpressable) ( (AttributeMapping) type ).getMappedType();
+					adjustedTimestampType = (SqmExpressable<?>) ( (AttributeMapping) type ).getMappedType();
 				}
 				else {
 					// else we know it has not been transformed
@@ -4758,7 +4751,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 	}
 
-	private Object transformDatetimeArithmetic(SqmBinaryArithmetic expression) {
+	private Object transformDatetimeArithmetic(SqmBinaryArithmetic<?> expression) {
 		BinaryArithmeticOperator operator = expression.getOperator();
 
 		// the only kind of algebra we know how to
@@ -5055,7 +5048,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	@Override
 	public CaseSimpleExpression visitSimpleCaseExpression(SqmCaseSimple<?, ?> expression) {
 		final List<CaseSimpleExpression.WhenFragment> whenFragments = new ArrayList<>( expression.getWhenFragments().size() );
-		final Supplier<MappingModelExpressable> inferenceSupplier = inferrableTypeAccessStack.getCurrent();
+		final Supplier<MappingModelExpressable<?>> inferenceSupplier = inferrableTypeAccessStack.getCurrent();
 		inferrableTypeAccessStack.push(
 				() -> {
 					for ( SqmCaseSimple.WhenFragment<?, ?> whenFragment : expression.getWhenFragments() ) {
@@ -5113,7 +5106,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	@Override
 	public CaseSearchedExpression visitSearchedCaseExpression(SqmCaseSearched<?> expression) {
 		final List<CaseSearchedExpression.WhenFragment> whenFragments = new ArrayList<>( expression.getWhenFragments().size() );
-		final Supplier<MappingModelExpressable> inferenceSupplier = inferrableTypeAccessStack.getCurrent();
+		final Supplier<MappingModelExpressable<?>> inferenceSupplier = inferrableTypeAccessStack.getCurrent();
 		MappingModelExpressable<?> resolved = determineCurrentExpressable( expression );
 
 		Expression otherwise = null;
@@ -5161,39 +5154,35 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		}
 	}
 
-	private <X> X visitWithLenientInferredType(SqmExpression<?> expression, SqmExpression<?> inferred) {
+//	private <X> X visitWithLenientInferredType(SqmExpression<?> expression, SqmExpression<?> inferred) {
-		inferrableTypeAccessStack.push(
+//		inferrableTypeAccessStack.push(
-				() -> {
+//				() -> {
-					MappingModelExpressable<?> definedType = creationContext
+//					MappingModelExpressable<?> definedType = creationContext
-							.getDomainModel()
+//							.getDomainModel()
-							.resolveMappingExpressable(
+//							.resolveMappingExpressable(
-									expression.getNodeType(),
+//									expression.getNodeType(),
-									getFromClauseIndex()::findTableGroup
+//									getFromClauseIndex()::findTableGroup
-							);
+//							);
-					if ( definedType != null ) {
+//					if ( definedType != null ) {
-						return definedType;
+//						return definedType;
-					}
+//					}
-					definedType = creationContext
+//					definedType = creationContext
-							.getDomainModel()
+//							.getDomainModel()
-							.lenientlyResolveMappingExpressable(
+//							.lenientlyResolveMappingExpressable(
-									inferred.getNodeType(),
+//									inferred.getNodeType(),
-									getFromClauseIndex()::findTableGroup
+//									getFromClauseIndex()::findTableGroup
-							);
+//							);
-					if ( definedType != null ) {
+//					return definedType;
-						return definedType;
+//				}
-					}
+//		);
-
+//
-					return null;
+//		try {
-				}
+//			return (X) expression.accept( this );
-		);
+//		}
-
+//		finally {
-		try {
+//			inferrableTypeAccessStack.pop();
-			return (X) expression.accept( this );
+//		}
-		}
+//	}
-		finally {
-			inferrableTypeAccessStack.pop();
-		}
-	}
 
 	@Override
 	public Object visitAny(SqmAny<?> sqmAny) {
@@ -5255,7 +5244,8 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		final BasicValuedMapping inferrableType = (BasicValuedMapping) inferrableTypeAccessStack.getCurrent().get();
 		if ( inferrableType instanceof ConvertibleModelPart ) {
 			final ConvertibleModelPart inferredPart = (ConvertibleModelPart) inferrableType;
-			final BasicValueConverter valueConverter = inferredPart.getValueConverter();
+			@SuppressWarnings("unchecked")
+			final BasicValueConverter<Enum<?>,?> valueConverter = inferredPart.getValueConverter();
 			final Object jdbcValue = valueConverter.toRelationalValue( sqmEnumLiteral.getEnumValue() );
 			return new QueryLiteral<>( jdbcValue, inferredPart );
 		}
@@ -5312,8 +5302,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 					() -> ( (EntityCollectionPart) pluralAttributeMapping.getElementDescriptor() ).getKeyTargetMatchPart() );
 		}
 		else if ( pluralAttributeMapping.getElementDescriptor() instanceof EmbeddedCollectionPart ) {
-			inferrableTypeAccessStack.push(
+			inferrableTypeAccessStack.push(pluralAttributeMapping::getElementDescriptor);
-					() -> pluralAttributeMapping.getElementDescriptor() );
 		}
 		else {
 			inferrableTypeAccessStack.push( () -> pluralAttributeMapping );
@@ -5722,7 +5711,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	@Override
-	public InSubQueryPredicate visitInSubQueryPredicate(SqmInSubQueryPredicate predicate) {
+	public InSubQueryPredicate visitInSubQueryPredicate(SqmInSubQueryPredicate<?> predicate) {
 		return new InSubQueryPredicate(
 				visitWithInferredType( predicate.getTestExpression(), predicate.getSubQueryExpression() ),
 				visitWithInferredType( predicate.getSubQueryExpression(), predicate.getTestExpression() ),
@@ -5865,16 +5854,16 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 				}
 			}
 
-			final TableGroup existingJoinedGroup = fromClauseIndex.findTableGroup( fetchablePath );
+//			final TableGroup existingJoinedGroup = fromClauseIndex.findTableGroup( fetchablePath );
-			if ( existingJoinedGroup != null ) {
+//			if ( existingJoinedGroup != null ) {
 				// we can use this to trigger the fetch from the joined group.
 
 				// todo (6.0) : do we want to do this though?
 				//  	On the positive side it would allow EntityGraph to use the existing TableGroup.  But that ties in
 				//  	to the discussion above regarding how to handle eager and EntityGraph (JOIN versus SELECT).
 				//		Can be problematic if the existing one is restricted
-				//fetchTiming = FetchTiming.IMMEDIATE;
+//				fetchTiming = FetchTiming.IMMEDIATE;
-			}
+//			}
 
 			// lastly, account for any app-defined max-fetch-depth
 			final Integer maxDepth = getCreationContext().getMaximumFetchDepth();
@@ -6147,10 +6136,6 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 			return delegate.resolveSqlSelection( expression, javaTypeDescriptor, typeConfiguration );
 		}
 
-		public SqmAliasedNodeCollector getSqmAliasedNodeCollector() {
-			return sqmAliasedNodeCollector;
-		}
-
 		public void setSqmAliasedNodeCollector(SqmAliasedNodeCollector sqmAliasedNodeCollector) {
 			this.sqmAliasedNodeCollector = sqmAliasedNodeCollector;
 		}
@@ -6161,6 +6146,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 		private final List<SqlSelection>[] sqlSelectionsForSqmSelection;
 		private int index = -1;
 
+		@SuppressWarnings("unchecked")
 		public SqmAliasedNodePositionTracker(SqlExpressionResolver delegate, List<? extends SqmAliasedNode<?>> selections) {
 			this.delegate = delegate;
 			this.sqlSelectionsForSqmSelection = new List[countIndividualSelections( selections )];
@@ -6211,20 +6197,18 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
 	}
 
 	@Override
-	public List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter sqmParameter) {
+	public List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter<?> sqmParameter) {
 		assert sqmParameter.allowMultiValuedBinding();
-		final QueryParameterImplementor<?> domainParam = domainParameterXref.getQueryParameter(
+		final QueryParameterImplementor<?> domainParam = domainParameterXref.getQueryParameter( sqmParameter );
-				sqmParameter );
+		final QueryParameterBinding<?> domainParamBinding = domainParameterBindings.getBinding( domainParam );
-		final QueryParameterBinding domainParamBinding = domainParameterBindings.getBinding(
-				domainParam );
 
-		final Collection bindValues = domainParamBinding.getBindValues();
+		final Collection<?> bindValues = domainParamBinding.getBindValues();
 		final int bindValuesSize = bindValues.size();
 		final List<Expression> result = new ArrayList<>( bindValuesSize );
 
 		boolean first = true;
 		for ( int i = 0; i < bindValuesSize; i++ ) {
-			final SqmParameter sqmParamToConsume;
+			final SqmParameter<?> sqmParamToConsume;
 			// for each bind value create an "expansion"
 			if ( first ) {
 				sqmParamToConsume = sqmParameter;

hibernate-core/src/main/java/org/hibernate/query/sqm/sql/FakeSqmToSqlAstConverter.java

@@ -74,7 +74,7 @@ public class FakeSqmToSqlAstConverter extends BaseSemanticQueryWalker implements
 	}
 
 	@Override
-	public List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter sqmParameter) {
+	public List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter<?> sqmParameter) {
 		return null;
 	}
 }

hibernate-core/src/main/java/org/hibernate/query/sqm/sql/SqmToSqlAstConverter.java

@@ -23,6 +23,6 @@ import org.hibernate.sql.ast.tree.expression.Expression;
 public interface SqmToSqlAstConverter extends SemanticQueryWalker<Object>, SqlAstCreationState {
 	Stack<Clause> getCurrentClauseStack();
 
-	List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter sqmParameter);
+	List<Expression> expandSelfRenderingFunctionMultiValueParameter(SqmParameter<?> sqmParameter);
 
 }

hibernate-core/src/main/java/org/hibernate/query/sqm/sql/SqmTranslation.java

@@ -8,10 +8,8 @@ package org.hibernate.query.sqm.sql;
 
 import java.util.List;
 import java.util.Map;
-import java.util.function.Function;
 
 import org.hibernate.metamodel.mapping.MappingModelExpressable;
-import org.hibernate.query.sqm.spi.SqmParameterMappingModelResolutionAccess;
 import org.hibernate.query.sqm.tree.expression.SqmParameter;
 import org.hibernate.sql.ast.spi.FromClauseAccess;
 import org.hibernate.sql.ast.spi.SqlExpressionResolver;
@@ -27,6 +25,6 @@ public interface SqmTranslation<T extends Statement> {
 	T getSqlAst();
 	SqlExpressionResolver getSqlExpressionResolver();
 	FromClauseAccess getFromClauseAccess();
-	Map<SqmParameter, List<List<JdbcParameter>>> getJdbcParamsBySqmParam();
+	Map<SqmParameter<?>, List<List<JdbcParameter>>> getJdbcParamsBySqmParam();
-	Map<SqmParameter,MappingModelExpressable> getSqmParameterMappingModelTypeResolutions();
+	Map<SqmParameter<?>, MappingModelExpressable<?>> getSqmParameterMappingModelTypeResolutions();
 }

hibernate-core/src/main/java/org/hibernate/query/sqm/sql/StandardSqmTranslation.java

@@ -22,15 +22,15 @@ import org.hibernate.sql.ast.tree.expression.JdbcParameter;
 public class StandardSqmTranslation<T extends Statement> implements SqmTranslation<T> {
 
 	private final T sqlAst;
-	private final Map<SqmParameter, List<List<JdbcParameter>>> jdbcParamMap;
+	private final Map<SqmParameter<?>, List<List<JdbcParameter>>> jdbcParamMap;
-	private final Map<SqmParameter, MappingModelExpressable> parameterMappingModelTypeMap;
+	private final Map<SqmParameter<?>, MappingModelExpressable<?>> parameterMappingModelTypeMap;
 	private final SqlExpressionResolver sqlExpressionResolver;
 	private final FromClauseAccess fromClauseAccess;
 
 	public StandardSqmTranslation(
 			T sqlAst,
-			Map<SqmParameter, List<List<JdbcParameter>>> jdbcParamMap,
+			Map<SqmParameter<?>, List<List<JdbcParameter>>> jdbcParamMap,
-			Map<SqmParameter, MappingModelExpressable> parameterMappingModelTypeMap,
+			Map<SqmParameter<?>, MappingModelExpressable<?>> parameterMappingModelTypeMap,
 			SqlExpressionResolver sqlExpressionResolver,
 			FromClauseAccess fromClauseAccess) {
 		this.sqlAst = sqlAst;
@@ -46,12 +46,12 @@ public class StandardSqmTranslation<T extends Statement> implements SqmTranslati
 	}
 
 	@Override
-	public Map<SqmParameter, List<List<JdbcParameter>>> getJdbcParamsBySqmParam() {
+	public Map<SqmParameter<?>, List<List<JdbcParameter>>> getJdbcParamsBySqmParam() {
 		return jdbcParamMap;
 	}
 
 	@Override
-	public Map<SqmParameter, MappingModelExpressable> getSqmParameterMappingModelTypeResolutions() {
+	public Map<SqmParameter<?>, MappingModelExpressable<?>> getSqmParameterMappingModelTypeResolutions() {
 		return parameterMappingModelTypeMap;
 	}
 

hibernate-core/src/main/java/org/hibernate/sql/ast/spi/FromClauseAccess.java

@@ -42,7 +42,7 @@ public interface FromClauseAccess {
 
 	/**
 	 * Register a TableGroup under the given `navigablePath`.  Logs a message
-	 * if thhis registration over-writes an existing one.
+	 * if this registration over-writes an existing one.
 	 */
 	void registerTableGroup(NavigablePath navigablePath, TableGroup tableGroup);
 

hibernate-core/src/main/java/org/hibernate/sql/ast/tree/expression/FunctionExpression.java

@@ -19,5 +19,5 @@ public interface FunctionExpression extends Expression {
 
 	String getFunctionName();
 
-	List<SqlAstNode> getArguments();
+	List<? extends SqlAstNode> getArguments();
 }

hibernate-core/src/test/java/org/hibernate/orm/test/subquery/SubqueryTest.java

@@ -59,9 +59,9 @@ public class SubqueryTest extends BaseSessionFactoryFunctionalTest {
 
 		@Override
 		public void render(
-				SqlAppender sqlAppender, List<SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
+                SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, SqlAstTranslator<?> walker) {
 			sqlAstArguments.get( 0 ).accept( walker );
-			sqlAppender.appendSql( " limit " + ( (QueryLiteral) sqlAstArguments.get( 1 ) ).getLiteralValue() );
+			sqlAppender.appendSql( " limit " + ( (QueryLiteral<?>) sqlAstArguments.get( 1 ) ).getLiteralValue() );
 		}
 	}