diff --git a/CONTRIBUTING.adoc b/CONTRIBUTING.adoc
index a61cae6054..f9d1ebda36 100755
--- a/CONTRIBUTING.adoc
+++ b/CONTRIBUTING.adoc
@@ -7,7 +7,7 @@ something, or simply want to hack on the code this document should help you get
 
 == Code of Conduct
 This project adheres to the Contributor Covenant link:CODE_OF_CONDUCT.adoc[code of
-conduct]. By participating, you  are expected to uphold this code. Please report
+conduct]. By participating, you are expected to uphold this code. Please report
 unacceptable behavior to spring-code-of-conduct@pivotal.io.
 
 
diff --git a/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ResourcePropertiesTests.java b/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ResourcePropertiesTests.java
index f855ca9e3e..a3fdf00956 100644
--- a/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ResourcePropertiesTests.java
+++ b/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ResourcePropertiesTests.java
@@ -31,7 +31,6 @@ public class ResourcePropertiesTests {
 
 	@Test
 	public void resourceChainNoCustomization() {
-		System.out.println(this.properties.getChain().getEnabled());
 		assertThat(this.properties.getChain().getEnabled()).isNull();
 	}
 
diff --git a/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc b/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc
index 50d5094163..bcfca72e2b 100644
--- a/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc
+++ b/spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc
@@ -772,7 +772,7 @@ definitions by simply listing the properties classes directly in the
 
 [NOTE]
 ====
-When `@ConfigurationProperties` bean are registered that way, the bean will have a
+When `@ConfigurationProperties` bean is registered that way, the bean will have a
 conventional name: `<prefix>-<fqn>`, where `<prefix>` is the environment key prefix
 specified in the `@ConfigurationProperties` annotation and <fqn> the fully qualified
 name of the bean. If the annotation does not provide any prefix, only the fully qualified
@@ -2002,7 +2002,7 @@ password, printed at INFO level when the application starts up)
 	Using default security password: 78fa095d-3f4c-48b1-ad50-e24c31d5cf35
 ----
 
-NOTE: If you fine tune your logging configuration, ensure that the
+NOTE: If you fine-tune your logging configuration, ensure that the
 `org.springframework.boot.autoconfigure.security` category is set to log `INFO` messages,
 otherwise the default password will not be printed.
 
@@ -2372,7 +2372,7 @@ loadable.
 
 See {sc-spring-boot-autoconfigure}/jdbc/DataSourceProperties.{sc-ext}[`DataSourceProperties`]
 for more of the supported options. These are the standard options that work regardless of
-the actual implementation. It is also possible to fine tune implementation-specific
+the actual implementation. It is also possible to fine-tune implementation-specific
 settings using their respective prefix (`+spring.datasource.tomcat*+`,
 `+spring.datasource.hikari+`, `+spring.datasource.dbcp*+` and
 `+spring.datasource.dbcp2*+`), refer to the documentation of the connection pool
diff --git a/spring-boot/src/main/java/org/springframework/boot/ExitCodeEvent.java b/spring-boot/src/main/java/org/springframework/boot/ExitCodeEvent.java
index a16af1c4d2..6a18bc2851 100644
--- a/spring-boot/src/main/java/org/springframework/boot/ExitCodeEvent.java
+++ b/spring-boot/src/main/java/org/springframework/boot/ExitCodeEvent.java
@@ -41,7 +41,7 @@ public class ExitCodeEvent extends ApplicationEvent {
 
 	/**
 	 * Return the exit code that will be used to exit the JVM.
-	 * @return the the exit code
+	 * @return the exit code
 	 */
 	public int getExitCode() {
 		return this.exitCode;
diff --git a/spring-boot/src/main/java/org/springframework/boot/context/ContextIdApplicationContextInitializer.java b/spring-boot/src/main/java/org/springframework/boot/context/ContextIdApplicationContextInitializer.java
index 8ae509feb9..3b05893871 100644
--- a/spring-boot/src/main/java/org/springframework/boot/context/ContextIdApplicationContextInitializer.java
+++ b/spring-boot/src/main/java/org/springframework/boot/context/ContextIdApplicationContextInitializer.java
@@ -71,7 +71,7 @@ public class ContextIdApplicationContextInitializer implements
 	 * <li>{@code server.port}</li>
 	 * <li>{@code PORT}</li>
 	 * </ul>
-	 * This order allows favors a platform defined index over any user defined value.
+	 * This order favors a platform defined index over any user defined value.
 	 */
 	private static final String INDEX_PATTERN = "${vcap.application.instance_index:${spring.application.index:${server.port:${PORT:null}}}}";
 
diff --git a/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/NoUniqueBeanDefinitionExceptionFailureAnalyzer.java b/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/NoUniqueBeanDefinitionExceptionFailureAnalyzer.java
index 811eebc8e9..618c082695 100644
--- a/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/NoUniqueBeanDefinitionExceptionFailureAnalyzer.java
+++ b/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/NoUniqueBeanDefinitionExceptionFailureAnalyzer.java
@@ -80,13 +80,13 @@ class NoUniqueBeanDefinitionExceptionFailureAnalyzer
 			}
 			catch (NoSuchBeanDefinitionException ex) {
 				message.append(String.format(
-						"\t- %s: a programtically registered singleton", beanName));
+						"\t- %s: a programmatically registered singleton", beanName));
 			}
 
 		}
 		return new FailureAnalysis(message.toString(),
 				"Consider marking one of the beans as @Primary, updating the consumer to"
-						+ " accept multiple beans, or using @Qualifer to identify the"
+						+ " accept multiple beans, or using @Qualifier to identify the"
 						+ " bean that should be consumed",
 				cause);
 	}