Use switch expression where feasible

spring-expression/src/main/java/org/springframework/expression/common/TemplateAwareExpressionParser.java

@@ -184,14 +184,10 @@ public abstract class TemplateAwareExpressionParser implements ExpressionParser
 			}
 			char ch = expressionString.charAt(pos);
 			switch (ch) {
-				case '{':
-				case '[':
-				case '(':
+				case '{', '[', '(' -> {
 					stack.push(new Bracket(ch, pos));
-					break;
-				case '}':
-				case ']':
-				case ')':
+				}
+				case '}', ']', ')' -> {
 					if (stack.isEmpty()) {
 						throw new ParseException(expressionString, pos, "Found closing '" + ch +
 								"' at position " + pos + " without an opening '" +
@@ -203,9 +199,8 @@ public abstract class TemplateAwareExpressionParser implements ExpressionParser
 								"' at position " + pos + " but most recent opening is '" + p.bracket +
 								"' at position " + p.pos);
 					}
-					break;
-				case '\'':
-				case '"':
+				}
+				case '\'', '"' -> {
 					// jump to the end of the literal
 					int endLiteral = expressionString.indexOf(ch, pos + 1);
 					if (endLiteral == -1) {
@@ -213,7 +208,7 @@ public abstract class TemplateAwareExpressionParser implements ExpressionParser
 								"Found non terminating string literal starting at position " + pos);
 					}
 					pos = endLiteral;
-					break;
+				}
 			}
 			pos++;
 		}