[ci] Remove unused imports

Author: hazendaz

src/main/java/org/apache/ibatis/plugin/Signature.java

@@ -16,7 +16,6 @@
 package org.apache.ibatis.plugin;
 
 import java.lang.annotation.Documented;
-import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;

src/main/java/org/apache/ibatis/transaction/Transaction.java

@@ -17,7 +17,6 @@
 
 import java.sql.Connection;
 import java.sql.SQLException;
-import java.sql.Statement;
 
 /**
  * Wraps a database connection.

src/main/java/org/apache/ibatis/transaction/managed/ManagedTransaction.java

@@ -17,8 +17,6 @@
 
 import java.sql.Connection;
 import java.sql.SQLException;
-import java.sql.Statement;
-
 import javax.sql.DataSource;
 
 import org.apache.ibatis.logging.Log;

src/test/java/org/apache/ibatis/builder/CustomObjectWrapperFactory.java

@@ -16,13 +16,9 @@
 package org.apache.ibatis.builder;
 
 import org.apache.ibatis.reflection.MetaObject;
-import org.apache.ibatis.reflection.factory.DefaultObjectFactory;
 import org.apache.ibatis.reflection.wrapper.ObjectWrapper;
 import org.apache.ibatis.reflection.wrapper.ObjectWrapperFactory;
 
-import java.util.List;
-import java.util.Properties;
-
 public class CustomObjectWrapperFactory implements ObjectWrapperFactory {
 
   private String option;

src/test/java/org/apache/ibatis/builder/XmlConfigBuilderTest.java

@@ -29,7 +29,6 @@
 import org.apache.ibatis.builder.mapper.CustomMapper;
 import org.apache.ibatis.builder.typehandler.CustomIntegerTypeHandler;
 import org.apache.ibatis.builder.xml.XMLConfigBuilder;
-import org.apache.ibatis.datasource.pooled.PooledDataSource;
 import org.apache.ibatis.datasource.unpooled.UnpooledDataSource;
 import org.apache.ibatis.domain.blog.Author;
 import org.apache.ibatis.domain.blog.Blog;
@@ -41,9 +40,7 @@
 import org.apache.ibatis.io.JBoss6VFS;
 import org.apache.ibatis.io.Resources;
 import org.apache.ibatis.logging.slf4j.Slf4jImpl;
-import org.apache.ibatis.mapping.DatabaseIdProvider;
 import org.apache.ibatis.mapping.Environment;
-import org.apache.ibatis.plugin.Interceptor;
 import org.apache.ibatis.scripting.defaults.RawLanguageDriver;
 import org.apache.ibatis.scripting.xmltags.XMLLanguageDriver;
 import org.apache.ibatis.session.AutoMappingBehavior;

src/test/java/org/apache/ibatis/builder/XmlMapperBuilderTest.java

@@ -25,7 +25,6 @@
 import org.apache.ibatis.mapping.StatementType;
 import org.apache.ibatis.session.Configuration;
 import org.apache.ibatis.type.TypeHandler;
-import org.hamcrest.CoreMatchers;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;

src/test/java/org/apache/ibatis/submitted/keygen/Jdbc3KeyGeneratorTest.java

@@ -23,13 +23,11 @@
 import java.util.List;
 
 import org.apache.ibatis.exceptions.PersistenceException;
-import org.apache.ibatis.executor.ExecutorException;
 import org.apache.ibatis.io.Resources;
 import org.apache.ibatis.jdbc.ScriptRunner;
 import org.apache.ibatis.session.SqlSession;
 import org.apache.ibatis.session.SqlSessionFactory;
 import org.apache.ibatis.session.SqlSessionFactoryBuilder;
-import org.hamcrest.CoreMatchers;
 import org.junit.BeforeClass;
 import org.junit.Rule;
 import org.junit.Test;

src/test/java/org/apache/ibatis/type/TypeHandlerRegistryTest.java

@@ -17,7 +17,6 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;
 import static org.junit.Assert.assertTrue;