diff --git a/spring-batch-core/pom.xml b/spring-batch-core/pom.xml
index 2c14b672e..a8f27f613 100644
--- a/spring-batch-core/pom.xml
+++ b/spring-batch-core/pom.xml
@@ -43,6 +43,7 @@
 		<dependency>
 			<groupId>commons-lang</groupId>
 			<artifactId>commons-lang</artifactId>
+			<optional>true</optional>
 		</dependency>
 		<dependency>
 			<groupId>org.easymock</groupId>
@@ -117,11 +118,6 @@
 			<groupId>javax.annotation</groupId>
 			<artifactId>jsr250-api</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>log4j</groupId>
-			<artifactId>log4j</artifactId>
-			<optional>false</optional>
-		</dependency>
 		<dependency>
 			<groupId>log4j</groupId>
 			<artifactId>log4j</artifactId>
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameter.java b/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameter.java
index 0c7af27c1..7a4744e67 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameter.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameter.java
@@ -19,39 +19,38 @@ package org.springframework.batch.core;
 import java.io.Serializable;
 import java.util.Date;
 
-import org.apache.commons.lang.builder.HashCodeBuilder;
-
 /**
- * Domain representation of a parameter to a batch job.  Only the following types can be
- * parameters: String, Long, Date, and Double.
+ * Domain representation of a parameter to a batch job. Only the following types
+ * can be parameters: String, Long, Date, and Double.
  * 
  * @author Lucas Ward
  * @since 2.0
- *
+ * 
  */
-public class JobParameter implements Serializable{
-	
+public class JobParameter implements Serializable {
+
 	private final Object parameter;
+
 	private final ParameterType parameterType;
-	
+
 	/**
 	 * Construct a new JobParameter as a String.
 	 */
-	public JobParameter(String parameter){
+	public JobParameter(String parameter) {
 		this.parameter = parameter;
 		parameterType = ParameterType.STRING;
 	}
-	
+
 	/**
 	 * Construct a new JobParameter as a Long.
 	 * 
 	 * @param parameter
 	 */
-	public JobParameter(Long parameter){
+	public JobParameter(Long parameter) {
 		this.parameter = parameter;
 		parameterType = ParameterType.LONG;
 	}
-	
+
 	/**
 	 * Construct a new JobParameter as a Date.
 	 * 
@@ -61,65 +60,65 @@ public class JobParameter implements Serializable{
 		this.parameter = new Date(parameter.getTime());
 		parameterType = ParameterType.DATE;
 	}
-	
+
 	/**
 	 * Construct a new JobParameter as a Double.
 	 * 
 	 * @param parameter
 	 */
-	public JobParameter(Double parameter){
+	public JobParameter(Double parameter) {
 		this.parameter = parameter;
 		parameterType = ParameterType.DOUBLE;
 	}
-	
+
 	/**
 	 * @return the value contained within this JobParameter.
 	 */
-	public Object getValue(){
-		
-		if(parameter.getClass().isInstance(Date.class)){
-			return new Date(((Date)parameter).getTime());
+	public Object getValue() {
+
+		if (parameter.getClass().isInstance(Date.class)) {
+			return new Date(((Date) parameter).getTime());
 		}
-		else{
+		else {
 			return parameter;
 		}
 	}
-	
+
 	/**
 	 * @return a ParameterType representing the type of this parameter.
 	 */
-	public ParameterType getType(){
+	public ParameterType getType() {
 		return parameterType;
 	}
-	
+
 	@Override
 	public boolean equals(Object obj) {
-		if(obj instanceof JobParameter == false){
+		if (obj instanceof JobParameter == false) {
 			return false;
 		}
-		
-		if(this == obj){
+
+		if (this == obj) {
 			return true;
 		}
-		
-		JobParameter rhs = (JobParameter)obj;
+
+		JobParameter rhs = (JobParameter) obj;
 		return this.parameter.equals(rhs.parameter);
 	}
-	
+
 	@Override
 	public String toString() {
-		return parameterType==ParameterType.DATE ? ""+((Date)parameter).getTime() : parameter.toString();
+		return parameterType == ParameterType.DATE ? "" + ((Date) parameter).getTime() : parameter.toString();
 	}
-	
+
 	public int hashCode() {
-		return new HashCodeBuilder(7, 21).append(parameter).toHashCode();
+		return 7 + 21 * parameter.hashCode();
 	}
-	
+
 	/**
-	 * Enumeration representing the type of a JobParameter. 
+	 * Enumeration representing the type of a JobParameter.
 	 */
-	public enum ParameterType{
-		
+	public enum ParameterType {
+
 		STRING, DATE, LONG, DOUBLE;
 	}
 }
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameters.java b/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameters.java
index 14c1a1879..487383f45 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameters.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/JobParameters.java
@@ -21,8 +21,6 @@ import java.util.Date;
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import org.apache.commons.lang.builder.HashCodeBuilder;
-
 /**
  * Value object representing runtime parameters to a batch job. Because the
  * parameters have no individual meaning outside of the JobParameters they are
@@ -193,7 +191,7 @@ public class JobParameters implements Serializable {
 	
 	@Override
 	public int hashCode() {
-		return new HashCodeBuilder(7, 21).append(parameters).toHashCode();
+		return 17 + 23 * parameters.hashCode();
 	}
 	
 	@Override
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/JobParserJobFactoryBean.java b/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/JobParserJobFactoryBean.java
index cac420889..ef3248453 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/JobParserJobFactoryBean.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/JobParserJobFactoryBean.java
@@ -15,7 +15,6 @@
  */
 package org.springframework.batch.core.configuration.xml;
 
-import org.apache.commons.lang.StringUtils;
 import org.springframework.batch.core.JobExecutionListener;
 import org.springframework.batch.core.JobParametersIncrementer;
 import org.springframework.batch.core.job.flow.Flow;
@@ -23,6 +22,7 @@ import org.springframework.batch.core.job.flow.FlowJob;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.util.Assert;
+import org.springframework.util.StringUtils;
 
 /**
  * This {@link FactoryBean} is used by the batch namespace parser to create
@@ -51,7 +51,7 @@ class JobParserJobFactoryBean implements FactoryBean {
 	}
 
 	public final Object getObject() throws Exception {
-		Assert.isTrue(!StringUtils.isBlank(name), "The job must have an 'id'.");
+		Assert.isTrue(StringUtils.hasText(name), "The job must have an id.");
 		FlowJob flowJob = new FlowJob(name);
 
 		if (restartable != null) {
diff --git a/spring-batch-core/src/main/java/org/springframework/batch/core/step/tasklet/SystemCommandTasklet.java b/spring-batch-core/src/main/java/org/springframework/batch/core/step/tasklet/SystemCommandTasklet.java
index 8bf954bec..141cce6d3 100644
--- a/spring-batch-core/src/main/java/org/springframework/batch/core/step/tasklet/SystemCommandTasklet.java
+++ b/spring-batch-core/src/main/java/org/springframework/batch/core/step/tasklet/SystemCommandTasklet.java
@@ -20,7 +20,6 @@ import java.io.File;
 import java.util.concurrent.Callable;
 import java.util.concurrent.FutureTask;
 
-import org.apache.commons.lang.time.StopWatch;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.springframework.batch.core.ExitStatus;
@@ -34,6 +33,7 @@ import org.springframework.beans.factory.InitializingBean;
 import org.springframework.core.task.SimpleAsyncTaskExecutor;
 import org.springframework.core.task.TaskExecutor;
 import org.springframework.util.Assert;
+import org.springframework.util.StopWatch;
 
 /**
  * {@link Tasklet} that executes a system command.
@@ -105,7 +105,7 @@ public class SystemCommandTasklet extends StepExecutionListenerSupport implement
 					contribution.setExitStatus(systemProcessExitCodeMapper.getExitStatus(systemCommandTask.get()));
 					return RepeatStatus.FINISHED;
 				}
-				else if (stopWatch.getTime() > timeout) {
+				else if (stopWatch.getTotalTimeMillis() > timeout) {
 					systemCommandTask.cancel(interruptOnCancel);
 					throw new SystemCommandException("Execution of system command did not finish within the timeout");
 				}
@@ -169,6 +169,7 @@ public class SystemCommandTasklet extends StepExecutionListenerSupport implement
 	}
 
 	/**
+	 * Timeout in milliseconds.
 	 * @param timeout upper limit for how long the execution of the external
 	 * program is allowed to last.
 	 */
diff --git a/spring-batch-integration/pom.xml b/spring-batch-integration/pom.xml
index 22d77b063..5e720aa73 100644
--- a/spring-batch-integration/pom.xml
+++ b/spring-batch-integration/pom.xml
@@ -78,6 +78,11 @@
 			<artifactId>aspectjweaver</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>commons-lang</groupId>
+			<artifactId>commons-lang</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>cglib</groupId>
 			<artifactId>cglib-nodep</artifactId>
diff --git a/spring-batch-samples/pom.xml b/spring-batch-samples/pom.xml
index 8be9bc00d..fbbe8a09d 100644
--- a/spring-batch-samples/pom.xml
+++ b/spring-batch-samples/pom.xml
@@ -116,6 +116,10 @@
 			<groupId>commons-dbcp</groupId>
 			<artifactId>commons-dbcp</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>commons-lang</groupId>
+			<artifactId>commons-lang</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>