diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/Entity.java b/spring-batch-core/src/main/java/org/springframework/batch/core/Entity.java
index af9bf7b2f..0d4d35767 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/Entity.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/Entity.java
@@ -77,13 +77,13 @@ public class Entity implements Serializable {
 	 */
 	public void incrementVersion() {
 		if (version == null) {
-			version = new Integer(0);
+			version = 0;
 		} else {
-			version = new Integer(version.intValue() + 1);
+			version = version + 1;
 		}
 	}
 
-	// @Override
+	@Override
 	public String toString() {
 		return ClassUtils.getShortName(getClass()) + ": id=" + getId();
 	}
@@ -94,6 +94,7 @@ public class Entity implements Serializable {
 	 * 
 	 * @see java.lang.Object#equals(java.lang.Object)
 	 */
+	@Override
 	public boolean equals(Object other) {
 		if (other == this) {
 			return true;
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/util/SimpleMethodInvoker.java b/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/util/SimpleMethodInvoker.java
index 7c873d315..d222c4416 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/util/SimpleMethodInvoker.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/util/SimpleMethodInvoker.java
@@ -78,7 +78,7 @@ public class SimpleMethodInvoker implements MethodInvoker {
 	public Object invokeMethod(Object... args) {
 		
 		Class<?>[] parameterTypes = method.getParameterTypes();
-		Object[] invokeArgs = new Object[parameterTypes.length];
+		Object[] invokeArgs;
 		if(parameterTypes.length == 0){
 			invokeArgs = new Object[]{};
 		}
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/launch/support/SimpleJvmExitCodeMapper.java b/spring-batch-core/src/main/java/org/springframework/batch/core/launch/support/SimpleJvmExitCodeMapper.java
index d2f8101ab..0a7a6962d 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/launch/support/SimpleJvmExitCodeMapper.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/launch/support/SimpleJvmExitCodeMapper.java
@@ -41,10 +41,10 @@ public class SimpleJvmExitCodeMapper implements ExitCodeMapper {
 
 	public SimpleJvmExitCodeMapper() {
 		mapping = new HashMap<String, Integer>();
-		mapping.put(ExitStatus.FINISHED.getExitCode(), new Integer(JVM_EXITCODE_COMPLETED));
-		mapping.put(ExitStatus.FAILED.getExitCode(), new Integer(JVM_EXITCODE_GENERIC_ERROR));
-		mapping.put(ExitCodeMapper.JOB_NOT_PROVIDED, new Integer(JVM_EXITCODE_JOB_ERROR));
-		mapping.put(ExitCodeMapper.NO_SUCH_JOB, new Integer(JVM_EXITCODE_JOB_ERROR));
+		mapping.put(ExitStatus.FINISHED.getExitCode(), JVM_EXITCODE_COMPLETED);
+		mapping.put(ExitStatus.FAILED.getExitCode(), JVM_EXITCODE_GENERIC_ERROR);
+		mapping.put(ExitCodeMapper.JOB_NOT_PROVIDED, JVM_EXITCODE_JOB_ERROR);
+		mapping.put(ExitCodeMapper.NO_SUCH_JOB, JVM_EXITCODE_JOB_ERROR);
 	}
 
 	public Map<String, Integer> getMapping() {
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobExecutionDao.java b/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobExecutionDao.java
index 20ed662d6..b937978ae 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobExecutionDao.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobExecutionDao.java
@@ -114,7 +114,7 @@ public class JdbcJobExecutionDao extends AbstractJdbcBatchMetadataDao implements
 
 		jobExecution.incrementVersion();
 
-		jobExecution.setId(new Long(jobExecutionIncrementer.nextLongValue()));
+		jobExecution.setId(jobExecutionIncrementer.nextLongValue());
 		Object[] parameters = new Object[] { jobExecution.getId(), jobExecution.getJobId(),
 				jobExecution.getStartTime(), jobExecution.getEndTime(), jobExecution.getStatus().toString(),
 				jobExecution.getExitStatus().getExitCode(), jobExecution.getExitStatus().getExitDescription(),
@@ -278,7 +278,7 @@ public class JdbcJobExecutionDao extends AbstractJdbcBatchMetadataDao implements
 		}
 
 		public JobExecution mapRow(ResultSet rs, int rowNum) throws SQLException {
-			Long id = new Long(rs.getLong(1));
+			Long id = rs.getLong(1);
 			JobExecution jobExecution;
 
 			if (jobInstance == null) {
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobInstanceDao.java b/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobInstanceDao.java
index 3c2bd94bb..31d7c4933 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobInstanceDao.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/repository/dao/JdbcJobInstanceDao.java
@@ -82,7 +82,7 @@ public class JdbcJobInstanceDao extends AbstractJdbcBatchMetadataDao implements
 
 		Assert.state(getJobInstance(jobName, jobParameters) == null, "JobInstance must not already exist");
 
-		Long jobId = new Long(jobIncrementer.nextLongValue());
+		Long jobId = jobIncrementer.nextLongValue();
 
 		JobInstance jobInstance = new JobInstance(jobId, jobParameters, jobName);
 		jobInstance.incrementVersion();
@@ -131,16 +131,16 @@ public class JdbcJobInstanceDao extends AbstractJdbcBatchMetadataDao implements
 				Types.BIGINT, Types.DOUBLE };
 
 		if (type == ParameterType.STRING) {
-			args = new Object[] { jobId, key, type, value, new Timestamp(0L), new Long(0), new Double(0) };
+			args = new Object[] { jobId, key, type, value, new Timestamp(0L), 0L, 0D };
 		}
 		else if (type == ParameterType.LONG) {
 			args = new Object[] { jobId, key, type, "", new Timestamp(0L), value, new Double(0) };
 		}
 		else if (type == ParameterType.DOUBLE) {
-			args = new Object[] { jobId, key, type, "", new Timestamp(0L), new Long(0), value };
+			args = new Object[] { jobId, key, type, "", new Timestamp(0L), 0L, value };
 		}
 		else if (type == ParameterType.DATE) {
-			args = new Object[] { jobId, key, type, "", value, new Long(0), new Double(0) };
+			args = new Object[] { jobId, key, type, "", value, 0L, 0D };
 		}
 
 		getJdbcTemplate().getJdbcOperations().update(getQuery(CREATE_JOB_PARAMETERS), args, argTypes);
@@ -317,7 +317,7 @@ public class JdbcJobInstanceDao extends AbstractJdbcBatchMetadataDao implements
 			if(jobParameters == null){
 				jobParameters = getJobParameters(id);
 			}
-			JobInstance jobInstance = new JobInstance(new Long(rs.getLong(1)), jobParameters, rs.getString(2));
+			JobInstance jobInstance = new JobInstance(rs.getLong(1), jobParameters, rs.getString(2));
 			// should always be at version=0 because they never get updated
 			jobInstance.incrementVersion();
 			return jobInstance;