Use concatenation instead of torn StringBuilder::append chain

spring-aop/src/main/java/org/springframework/aop/interceptor/AbstractMonitoringInterceptor.java

@@ -98,16 +98,12 @@ public abstract class AbstractMonitoringInterceptor extends AbstractTraceInterce
 	 * @see #setSuffix
 	 */
 	protected String createInvocationTraceName(MethodInvocation invocation) {
-		StringBuilder sb = new StringBuilder(getPrefix());
 		Method method = invocation.getMethod();
 		Class<?> clazz = method.getDeclaringClass();
 		if (this.logTargetClassInvocation && clazz.isInstance(invocation.getThis())) {
 			clazz = invocation.getThis().getClass();
 		}
-		sb.append(clazz.getName());
-		sb.append('.').append(method.getName());
-		sb.append(getSuffix());
-		return sb.toString();
+		return getPrefix() + clazz.getName() + '.' + method.getName() + getSuffix();
 	}
 
 }

spring-beans/src/main/java/org/springframework/beans/factory/support/GenericBeanDefinition.java

@@ -89,12 +89,10 @@ public class GenericBeanDefinition extends AbstractBeanDefinition {
 
 	@Override
 	public String toString() {
-		StringBuilder sb = new StringBuilder("Generic bean");
 		if (this.parentName != null) {
-			sb.append(" with parent '").append(this.parentName).append("'");
+			return "Generic bean with parent '" + this.parentName + "': " + super.toString();
 		}
-		sb.append(": ").append(super.toString());
-		return sb.toString();
+		return "Generic bean: " + super.toString();
 	}
 
 }

spring-context-support/src/main/java/org/springframework/cache/jcache/interceptor/AnnotationJCacheOperationSource.java

@@ -212,10 +212,9 @@ public abstract class AnnotationJCacheOperationSource extends AbstractFallbackJC
 			parameters.add(parameterType.getName());
 		}
 
-		StringBuilder sb = new StringBuilder(method.getDeclaringClass().getName());
-		sb.append(".").append(method.getName());
-		sb.append("(").append(StringUtils.collectionToCommaDelimitedString(parameters)).append(")");
-		return sb.toString();
+		return method.getDeclaringClass().getName()
+				+ '.' + method.getName()
+				+ '(' + StringUtils.collectionToCommaDelimitedString(parameters) + ')';
 	}
 
 	private int countNonNull(Object... instances) {