misc minor code changes

hibernate-core/src/main/java/org/hibernate/boot/model/internal/EntityBinder.java

@@ -1568,8 +1568,7 @@ private void bindSynchronize() {
 		if ( synchronize != null ) {
 			final JdbcEnvironment jdbcEnvironment = getMetadataCollector().getDatabase().getJdbcEnvironment();
 			final boolean logical = synchronize.logical();
-			final String[] tableNames = synchronize.value();
-			for ( String tableName : tableNames ) {
+			for ( String tableName : synchronize.value() ) {
 				final String physicalName = logical ? toPhysicalName( jdbcEnvironment, tableName ) : tableName;
 				persistentClass.addSynchronizedTable( physicalName );
 			}

hibernate-core/src/main/java/org/hibernate/sql/Template.java

@@ -207,8 +207,8 @@ else if ( quotedIdentifier && dialect.closeQuote()==token.charAt(0) ) {
 					isOpenQuote = false;
 				}
 				if ( isOpenQuote
-					&& !inFromClause // don't want to append alias to tokens inside the from clause
-					&& notEndsWithDot( previousToken ) ) {
+						&& !inFromClause // don't want to append alias to tokens inside the FROM clause
+						&& !endsWithDot( previousToken ) ) {
 					result.append( alias ).append( '.' );
 				}
 			}
@@ -237,7 +237,7 @@ else if ( FUNCTION_WITH_FROM_KEYWORDS.contains(lcToken) && "(".equals( nextToken
 				result.append(token);
 				inExtractOrTrim = true;
 			}
-			else if ( !inFromClause // don't want to append alias to tokens inside the from clause
+			else if ( !inFromClause // don't want to append alias to tokens inside the FROM clause
 					&& isIdentifier( token )
 					&& !isFunctionOrKeyword( lcToken, nextToken, dialect, typeConfiguration )
 					&& !isLiteral( lcToken, nextToken, sql, symbols, tokens ) ) {
@@ -274,31 +274,29 @@ else if ( inFromClause && ",".equals(lcToken) ) {
 		return result.toString();
 	}
 
-	private static boolean notEndsWithDot(String token) {
-		return token == null || !token.endsWith( "." );
+	private static boolean endsWithDot(String token) {
+		return token != null && token.endsWith( "." );
 	}
 
 	private static boolean isLiteral(
 			String lcToken, String next,
 			String sqlWhereString, String symbols, StringTokenizer tokens) {
-		if ( LITERAL_PREFIXES.contains( lcToken ) && next != null ) {
-			// easy cases first
-			if ( "'".equals(next) ) {
-				return true;
-			}
-			else if ( !next.isBlank() ) {
-				return false;
-			}
-			else {
+		if ( next == null ) {
+			return false;
+		}
+		else if ( LITERAL_PREFIXES.contains( lcToken ) ) {
+			if ( next.isBlank() ) {
 				// we need to look ahead in the token stream
 				// to find the first non-blank token
 				return lookPastBlankTokens( sqlWhereString, symbols, tokens, 1,
-						(String nextToken)
-								-> "'".equals(nextToken)
+						(nextToken) -> "'".equals(nextToken)
 								|| lcToken.equals("time") && "with".equals(nextToken)
 								|| lcToken.equals("timestamp") && "with".equals(nextToken)
 								|| lcToken.equals("time") && "zone".equals(nextToken) );
 			}
+			else {
+				return "'".equals(next);
+			}
 		}
 		else {
 			return false;
@@ -351,15 +349,15 @@ public static List<String> collectColumnNames(String template) {
 		int begin = 0;
 		int match;
 		while ( ( match = template.indexOf(TEMPLATE, begin) ) >= 0 ) {
-			int start = match + TEMPLATE.length() + 1;
+			final int start = match + TEMPLATE.length() + 1;
 			for ( int loc = start;; loc++ ) {
 				if ( loc == template.length() - 1 ) {
 					names.add( template.substring( start ) );
 					begin = template.length();
 					break;
 				}
 				else {
-					char ch = template.charAt( loc );
+					final char ch = template.charAt( loc );
 					if ( PUNCTUATION.indexOf(ch) >= 0 || WHITESPACE.indexOf(ch) >= 0 ) {
 						names.add( template.substring( start, loc ) );
 						begin = loc;
@@ -401,17 +399,16 @@ private static boolean isType(String lcToken, TypeConfiguration typeConfiguratio
 	}
 
 	private static boolean isIdentifier(String token) {
-		if ( isBoolean( token ) ) {
-			return false;
-		}
-		return token.charAt( 0 ) == '`'
-			|| ( //allow any identifier quoted with backtick
-				isLetter( token.charAt( 0 ) ) && //only recognizes identifiers beginning with a letter
-						token.indexOf( '.' ) < 0
-			);
+		return token.charAt( 0 ) == '`' // allow any identifier quoted with backtick
+			|| isLetter( token.charAt( 0 ) )  // only recognizes identifiers beginning with a letter
+				&& token.indexOf( '.' ) < 0
+				&& !isBoolean( token );
 	}
 
 	private static boolean isBoolean(String token) {
-		return "true".equals( token ) || "false".equals( token );
+		return switch ( token.toLowerCase( Locale.ROOT ) ) {
+			case "true", "false" -> true;
+			default -> false;
+		};
 	}
 }

hibernate-core/src/main/java/org/hibernate/type/descriptor/DateTimeUtils.java

@@ -20,6 +20,7 @@
 import java.util.Locale;
 import java.util.TimeZone;
 
+import org.hibernate.Internal;
 import org.hibernate.dialect.Dialect;
 import org.hibernate.sql.ast.spi.SqlAppender;
 
@@ -32,6 +33,7 @@
  * @author Steve Ebersole
  * @author Gavin King
  */
+@Internal
 public final class DateTimeUtils {
 	private DateTimeUtils() {
 	}
@@ -435,8 +437,8 @@ public static <T extends Temporal> T adjustToDefaultPrecision(T temporal, Dialec
 		return adjustToPrecision( temporal, d.getDefaultTimestampPrecision(), d );
 	}
 
-	public static <T extends Temporal> T adjustToPrecision(T temporal, int precision, Dialect d) {
-		return d.doesRoundTemporalOnOverflow()
+	public static <T extends Temporal> T adjustToPrecision(T temporal, int precision, Dialect dialect) {
+		return dialect.doesRoundTemporalOnOverflow()
 				? roundToSecondPrecision( temporal, precision )
 				: truncateToPrecision( temporal, precision );
 	}
@@ -484,6 +486,7 @@ public static <T extends Temporal> T roundToSecondPrecision(T temporal, int prec
 		}
 		final long nanos = roundToPrecision( temporal.get( ChronoField.NANO_OF_SECOND ), precision );
 		if ( nanos == 1000000000L ) {
+			//noinspection unchecked
 			return (T) temporal.plus( 1L, ChronoUnit.SECONDS ).with( ChronoField.NANO_OF_SECOND, 0L );
 		}
 		//noinspection unchecked
@@ -501,27 +504,17 @@ public static long roundToPrecision(int nano, int precision) {
 	}
 
 	private static int pow10(int exponent) {
-		switch ( exponent ) {
-			case 0:
-				return 1;
-			case 1:
-				return 10;
-			case 2:
-				return 100;
-			case 3:
-				return 1_000;
-			case 4:
-				return 10_000;
-			case 5:
-				return 100_000;
-			case 6:
-				return 1_000_000;
-			case 7:
-				return 10_000_000;
-			case 8:
-				return 100_000_000;
-			default:
-				return (int) Math.pow( 10, exponent );
-		}
+		return switch ( exponent ) {
+			case 0 -> 1;
+			case 1 -> 10;
+			case 2 -> 100;
+			case 3 -> 1_000;
+			case 4 -> 10_000;
+			case 5 -> 100_000;
+			case 6 -> 1_000_000;
+			case 7 -> 10_000_000;
+			case 8 -> 100_000_000;
+			default -> (int) Math.pow( 10, exponent );
+		};
 	}
 }

hibernate-core/src/main/java/org/hibernate/type/descriptor/sql/spi/DdlTypeRegistry.java

@@ -267,7 +267,6 @@ public boolean isTypeNameRegistered(final String typeName) {
 				return true;
 			}
 		}
-
 		return false;
 	}
 }