Polish

spring-context-support/src/main/java/org/springframework/cache/jcache/config/AbstractJCacheConfiguration.java

@@ -25,7 +25,6 @@ import org.springframework.cache.jcache.interceptor.JCacheOperationSource;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Role;
-import org.springframework.lang.Nullable;
 
 /**
  * Abstract JSR-107 specific {@code @Configuration} class providing common

spring-context-support/src/main/java/org/springframework/scheduling/commonj/TimerManagerFactoryBean.java

@@ -27,7 +27,6 @@ import org.springframework.beans.factory.DisposableBean;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.context.Lifecycle;
-import org.springframework.util.Assert;
 
 /**
  * {@link org.springframework.beans.factory.FactoryBean} that retrieves a

spring-context-support/src/main/java/org/springframework/scheduling/quartz/MethodInvokingJobDetailFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2017 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,7 +35,6 @@ import org.springframework.beans.factory.BeanNameAware;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.support.ArgumentConvertingMethodInvoker;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.MethodInvoker;