Replace use of Apache Shiro StringUtils with Spring Framework StringUtils.

Author: jxblum

spring-data-geode-test/src/main/java/org/springframework/data/gemfire/tests/extensions/spring/context/annotation/DependencyOfBeanFactoryPostProcessor.java

@@ -18,8 +18,6 @@
 import java.lang.annotation.Annotation;
 import java.util.Optional;
 
-import org.apache.shiro.util.StringUtils;
-
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
@@ -30,6 +28,7 @@
 import org.springframework.data.gemfire.util.ArrayUtils;
 import org.springframework.lang.NonNull;
 import org.springframework.lang.Nullable;
+import org.springframework.util.StringUtils;
 
 /**
  * Spring {@link BeanFactoryPostProcessor} implementation used to post process {@link BeanDefinition BeanDefinitions}

spring-data-geode-test/src/main/java/org/springframework/data/gemfire/tests/integration/IntegrationTestsSupport.java

@@ -37,7 +37,6 @@
 import java.util.function.Function;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
-import java.util.stream.Collectors;
 
 import org.junit.AfterClass;
 import org.junit.Before;
@@ -56,8 +55,6 @@
 import org.apache.geode.internal.net.SSLConfigurationFactory;
 import org.apache.geode.internal.net.SocketCreatorFactory;
 
-import org.apache.shiro.util.StringUtils;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationEvent;
@@ -80,6 +77,7 @@
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ReflectionUtils;
+import org.springframework.util.StringUtils;
 
 /**
  * The {@link IntegrationTestsSupport} class is an abstract base class supporting integration tests
@@ -235,7 +233,7 @@ public static void clearAllJavaGemFireGeodeAndSpringDotPrefixedSystemProperties(
 
 		List<String> allSystemPropertyNames = System.getProperties().stringPropertyNames().stream()
 			.filter(ALL_SYSTEM_PROPERTIES_NAME_PREDICATE)
-			.collect(Collectors.toList());
+			.toList();
 
 		allSystemPropertyNames.forEach(System::clearProperty);
 	}