diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/ExcelFileParseException.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/ExcelFileParseException.java
index 8517869..d3690cb 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/ExcelFileParseException.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/ExcelFileParseException.java
@@ -27,11 +27,6 @@ import org.springframework.batch.item.ParseException;
  */
 public class ExcelFileParseException extends ParseException {
 
-    /**
-     * 
-     */
-    private static final long serialVersionUID = -3939056060545496492L;
-
     private final String filename;
     private final String sheet;
     private final String[] row;
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/jxl/JxlSheet.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/jxl/JxlSheet.java
index b22ab9e..ed0dcdf 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/jxl/JxlSheet.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/jxl/JxlSheet.java
@@ -43,6 +43,7 @@ public class JxlSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public int getNumberOfRows() {
         return this.delegate.getRows();
     }
@@ -50,6 +51,7 @@ public class JxlSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String[] getHeader() {
         return this.getRow(0);
     }
@@ -57,6 +59,7 @@ public class JxlSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String[] getRow(final int rowNumber) {
         final Cell[] row = this.delegate.getRow(rowNumber);
         return JxlUtils.extractContents(row);
@@ -65,6 +68,7 @@ public class JxlSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String getName() {
         return this.delegate.getName();
     }
@@ -72,6 +76,7 @@ public class JxlSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public int getNumberOfColumns() {
         return this.delegate.getColumns();
     }
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/DefaultRowMapper.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/DefaultRowMapper.java
index e6dd86d..70dd89b 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/DefaultRowMapper.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/DefaultRowMapper.java
@@ -39,6 +39,7 @@ public class DefaultRowMapper<T> implements RowMapper<T>, InitializingBean {
     private RowTokenizer rowTokenizer = new DefaultRowTokenizer();
     private FieldSetMapper<T> fieldSetMapper;
 
+    @Override
     public T mapRow(final Sheet sheet, final String[] row, final int rowNum) throws Exception {
         return this.fieldSetMapper.mapFieldSet(this.rowTokenizer.tokenize(sheet, row));
     }
@@ -56,6 +57,7 @@ public class DefaultRowMapper<T> implements RowMapper<T>, InitializingBean {
         this.rowTokenizer = rowTokenizer;
     }
 
+    @Override
     public void afterPropertiesSet() throws Exception {
         Assert.notNull(this.rowTokenizer, "The RowTokenizer must be set");
         Assert.notNull(this.fieldSetMapper, "The FieldSetMapper must be set");
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/PassThroughRowMapper.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/PassThroughRowMapper.java
index c4245fc..9fdcbf6 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/PassThroughRowMapper.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/mapping/PassThroughRowMapper.java
@@ -28,6 +28,7 @@ import org.springframework.batch.item.excel.Sheet;
  */
 public class PassThroughRowMapper implements RowMapper<String[]> {
 
+    @Override
     public String[] mapRow(final Sheet sheet, final String[] row, final int rowNum) throws Exception {
         return row;
     }
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/poi/PoiSheet.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/poi/PoiSheet.java
index d489e59..f50ecde 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/poi/PoiSheet.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/poi/PoiSheet.java
@@ -47,6 +47,7 @@ public class PoiSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public int getNumberOfRows() {
         return this.delegate.getLastRowNum() + 1;
     }
@@ -54,6 +55,7 @@ public class PoiSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String getName() {
         return this.delegate.getSheetName();
     }
@@ -61,6 +63,7 @@ public class PoiSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String[] getRow(final int rowNumber) {
         if (rowNumber > this.delegate.getLastRowNum()) {
             return null;
@@ -94,6 +97,7 @@ public class PoiSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public String[] getHeader() {
         return this.getRow(0);
     }
@@ -101,6 +105,7 @@ public class PoiSheet implements Sheet {
     /**
      * {@inheritDoc}
      */
+    @Override
     public int getNumberOfColumns() {
         final String[] columns = this.getHeader();
         if (columns != null) {
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/DefaultRowTokenizer.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/DefaultRowTokenizer.java
index 7b0ce7e..04deff4 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/DefaultRowTokenizer.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/DefaultRowTokenizer.java
@@ -40,6 +40,7 @@ public class DefaultRowTokenizer implements RowTokenizer, InitializingBean {
     private boolean includeSheetName = false;
     private String attributeForSheetName = null;
 
+    @Override
     public FieldSet tokenize(final Sheet sheet, final String[] row) {
         String[] values = new String[sheet.getNumberOfColumns()];
         System.arraycopy(row, 0, values, 0, row.length);
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/MappingColumnToAttributeConverter.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/MappingColumnToAttributeConverter.java
index 390cb6f..a1b5e73 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/MappingColumnToAttributeConverter.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/MappingColumnToAttributeConverter.java
@@ -31,6 +31,7 @@ public class MappingColumnToAttributeConverter implements ColumnToAttributeConve
 
     private final Map<String, String> mapping = new HashMap<String, String>();
 
+    @Override
     public String toAttribute(final String column) {
         if (this.mapping.containsKey(column)) {
             return this.mapping.get(column);
@@ -38,6 +39,7 @@ public class MappingColumnToAttributeConverter implements ColumnToAttributeConve
         return column;
     }
 
+    @Override
     public String toColumn(final String attribute) {
         if (this.mapping.containsValue(attribute)) {
             for (Map.Entry<String, String> entry : this.mapping.entrySet()) {
diff --git a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/PassThroughColumnToAttributeConverter.java b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/PassThroughColumnToAttributeConverter.java
index bb8544e..0b99d93 100644
--- a/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/PassThroughColumnToAttributeConverter.java
+++ b/spring-batch-excel/src/main/java/org/springframework/batch/item/excel/transform/PassThroughColumnToAttributeConverter.java
@@ -23,10 +23,12 @@ package org.springframework.batch.item.excel.transform;
  */
 public class PassThroughColumnToAttributeConverter implements ColumnToAttributeConverter {
 
+    @Override
     public String toAttribute(final String column) {
         return column;
     }
 
+    @Override
     public String toColumn(final String attribute) {
         return attribute;
     }