changing to use source 1.5; removed some @Override on interface methods; cleaned up unused imports

spring-data-commons-core/src/main/java/org/springframework/data/domain/PageImpl.java

@@ -190,7 +190,6 @@ public class PageImpl<T> implements Page<T> {
 	 * 
 	 * @see org.springframework.data.domain.Page#hasContent()
 	 */
-    @Override
     public boolean hasContent() {
     
     	return !content.isEmpty();

spring-data-commons-core/src/main/java/org/springframework/data/mapping/context/MappingContextAwareBeanPostProcessor.java

@@ -52,17 +52,14 @@ public class MappingContextAwareBeanPostProcessor implements BeanPostProcessor,
 		this.mappingContextBeanName = mappingContextBeanName;
 	}
 
-	@Override
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
 		this.applicationContext = applicationContext;
 	}
 
-	@Override
 	public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
 		return bean;
 	}
 
-	@Override
 	public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
 		if (bean instanceof MappingContextAware) {
 			if (null == mappingContext) {

spring-data-commons-core/src/main/java/org/springframework/data/persistence/AbstractConstructorEntityInstantiator.java

@@ -88,7 +88,6 @@ public abstract class AbstractConstructorEntityInstantiator<BACKING_INTERFACE, S
         };
     }
 
-    @SuppressWarnings("unchecked")
     protected <T extends BACKING_INTERFACE> StateBackedCreator<T, STATE> createWithoutConstructorInvocation(final Class<T> type, Class<STATE> stateType) {
         ReflectionFactory rf = ReflectionFactory.getReflectionFactory();
         Constructor<?> objectConstructor = getDeclaredConstructor(Object.class);

spring-data-commons-core/src/main/java/org/springframework/data/repository/support/DefaultRepositoryInformation.java

@@ -60,7 +60,6 @@ class DefaultRepositoryInformation implements RepositoryInformation {
   /* (non-Javadoc)
    * @see org.springframework.data.repository.support.RepositoryMetadata#getRepositoryInterface()
    */
-  @Override
   public Class<?> getRepositoryInterface() {
     return metadata.getRepositoryInterface();
   }
@@ -68,7 +67,6 @@ class DefaultRepositoryInformation implements RepositoryInformation {
   /* (non-Javadoc)
    * @see org.springframework.data.repository.support.RepositoryMetadata#getDomainClass()
    */
-  @Override
   public Class<?> getDomainClass() {
     return metadata.getDomainClass();
   }
@@ -76,7 +74,6 @@ class DefaultRepositoryInformation implements RepositoryInformation {
   /* (non-Javadoc)
    * @see org.springframework.data.repository.support.RepositoryMetadata#getIdClass()
    */
-  @Override
   public Class<?> getIdClass() {
     return metadata.getIdClass();
   }

spring-data-commons-core/src/main/java/org/springframework/data/repository/support/DefaultRepositoryMetadata.java

@@ -16,15 +16,6 @@
 package org.springframework.data.repository.support;
 
 import static org.springframework.core.GenericTypeResolver.*;
-import static org.springframework.data.repository.util.ClassUtils.*;
-
-import java.lang.reflect.Method;
-import java.lang.reflect.Type;
-import java.lang.reflect.TypeVariable;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
 
 import org.springframework.data.repository.Repository;
 import org.springframework.util.Assert;

spring-data-commons-core/src/main/java/org/springframework/data/util/TypeDiscoverer.java

@@ -6,7 +6,6 @@ import java.lang.reflect.GenericArrayType;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
 import java.lang.reflect.TypeVariable;
-import java.util.Collection;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
@@ -149,7 +148,6 @@ class TypeDiscoverer implements TypeInformation {
   /* (non-Javadoc)
    * @see org.springframework.data.util.TypeInformation#isMap()
    */
-  @Override
   public boolean isMap() {
     Class<?> rawType = getType();
     return rawType == null ? false : Map.class.isAssignableFrom(rawType);
@@ -171,7 +169,6 @@ class TypeDiscoverer implements TypeInformation {
   /* (non-Javadoc)
    * @see org.springframework.data.util.TypeInformation#isCollectionLike()
    */
-  @Override
   public boolean isCollectionLike() {
    
     Class<?> rawType = getType();

spring-data-commons-parent/pom.xml

@@ -255,8 +255,8 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.5</source>
+					<target>1.5</target>
 					<compilerArgument>-Xlint:all</compilerArgument>
 					<showWarnings>true</showWarnings>
 					<showDeprecation>false</showDeprecation>