diff --git a/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
index 2f8f5e3e45d..733a5755d93 100644
--- a/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
+++ b/configuration-metadata/spring-boot-configuration-metadata-changelog-generator/src/main/java/org/springframework/boot/configurationmetadata/changelog/Difference.java
@@ -20,7 +20,7 @@ import org.springframework.boot.configurationmetadata.ConfigurationMetadataPrope
 import org.springframework.boot.configurationmetadata.Deprecation.Level;
 
 /**
- * A difference the metadata.
+ * A difference in the metadata.
  *
  * @param type the type of the difference
  * @param oldProperty the old property
diff --git a/core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnPropertyCondition.java b/core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnPropertyCondition.java
index 0d965bb09ec..27cdcbb6554 100644
--- a/core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnPropertyCondition.java
+++ b/core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/OnPropertyCondition.java
@@ -40,7 +40,7 @@ import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
 
 /**
- * {@link Condition} that checks if properties are defined in environment.
+ * {@link Condition} that checks if properties are defined in the environment.
  *
  * @author Maciej Walkowiak
  * @author Phillip Webb
diff --git a/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/SpringBootTest.java b/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/SpringBootTest.java
index 70e5d66f067..2defc64155b 100644
--- a/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/SpringBootTest.java
+++ b/core/spring-boot-test/src/main/java/org/springframework/boot/test/context/SpringBootTest.java
@@ -128,7 +128,7 @@ public @interface SpringBootTest {
 	UseMainMethod useMainMethod() default UseMainMethod.NEVER;
 
 	/**
-	 * An enumeration web environment modes.
+	 * An enumeration of web environment modes.
 	 */
 	enum WebEnvironment {
 
diff --git a/module/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Operation.java b/module/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Operation.java
index 362ea61a139..dc4bf1281ad 100644
--- a/module/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Operation.java
+++ b/module/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/Operation.java
@@ -37,7 +37,7 @@ public interface Operation {
 	 * Invoke the underlying operation using the given {@code context}. Results intended
 	 * to be returned in the body of the response should additionally implement
 	 * {@link OperationResponseBody}.
-	 * @param context the context in to use when invoking the operation
+	 * @param context the context to use when invoking the operation
 	 * @return the result of the operation, may be {@code null}
 	 */
 	@Nullable Object invoke(InvocationContext context);
diff --git a/module/spring-boot-flyway/src/main/java/org/springframework/boot/flyway/autoconfigure/FlywayDataSource.java b/module/spring-boot-flyway/src/main/java/org/springframework/boot/flyway/autoconfigure/FlywayDataSource.java
index 4ba46b6d4fe..c8c06fc7ab2 100644
--- a/module/spring-boot-flyway/src/main/java/org/springframework/boot/flyway/autoconfigure/FlywayDataSource.java
+++ b/module/spring-boot-flyway/src/main/java/org/springframework/boot/flyway/autoconfigure/FlywayDataSource.java
@@ -25,7 +25,7 @@ import java.lang.annotation.Target;
 import org.springframework.beans.factory.annotation.Qualifier;
 
 /**
- * Qualifier annotation for a DataSource to be injected in to Flyway. If used for a second
+ * Qualifier annotation for a DataSource to be injected into Flyway. If used for a second
  * data source, the other (main) one would normally be marked as {@code @Primary}.
  *
  * @author Dave Syer
diff --git a/module/spring-boot-liquibase/src/main/java/org/springframework/boot/liquibase/autoconfigure/LiquibaseDataSource.java b/module/spring-boot-liquibase/src/main/java/org/springframework/boot/liquibase/autoconfigure/LiquibaseDataSource.java
index 8947d1c5743..4e3318a0ccd 100644
--- a/module/spring-boot-liquibase/src/main/java/org/springframework/boot/liquibase/autoconfigure/LiquibaseDataSource.java
+++ b/module/spring-boot-liquibase/src/main/java/org/springframework/boot/liquibase/autoconfigure/LiquibaseDataSource.java
@@ -25,7 +25,7 @@ import java.lang.annotation.Target;
 import org.springframework.beans.factory.annotation.Qualifier;
 
 /**
- * Qualifier annotation for a DataSource to be injected in to Liquibase. If used for a
+ * Qualifier annotation for a DataSource to be injected into Liquibase. If used for a
  * second data source, the other (main) one would normally be marked as {@code @Primary}.
  *
  * @author Eddú Meléndez