diff --git a/src/main/java/org/springframework/samples/petclinic/owner/PetRepository.java b/src/main/java/org/springframework/samples/petclinic/owner/PetRepository.java
index b0ec5db23..5ad150af7 100644
--- a/src/main/java/org/springframework/samples/petclinic/owner/PetRepository.java
+++ b/src/main/java/org/springframework/samples/petclinic/owner/PetRepository.java
@@ -23,7 +23,7 @@ import org.springframework.transaction.annotation.Transactional;
/**
* Repository class for Pet
domain objects All method names are compliant with Spring Data naming
- * conventions so this interface can easily be extended for Spring Data See here: http://static.springsource.org/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
+ * conventions so this interface can easily be extended for Spring Data See here: https://docs.spring.io/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
*
* @author Ken Krebs
* @author Juergen Hoeller
diff --git a/src/main/java/org/springframework/samples/petclinic/vet/VetRepository.java b/src/main/java/org/springframework/samples/petclinic/vet/VetRepository.java
index 20863ce76..c3594feee 100644
--- a/src/main/java/org/springframework/samples/petclinic/vet/VetRepository.java
+++ b/src/main/java/org/springframework/samples/petclinic/vet/VetRepository.java
@@ -24,7 +24,7 @@ import org.springframework.transaction.annotation.Transactional;
/**
* Repository class for Vet
domain objects All method names are compliant with Spring Data naming
- * conventions so this interface can easily be extended for Spring Data See here: http://static.springsource.org/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
+ * conventions so this interface can easily be extended for Spring Data See here: https://docs.spring.io/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
*
* @author Ken Krebs
* @author Juergen Hoeller
diff --git a/src/main/java/org/springframework/samples/petclinic/visit/VisitRepository.java b/src/main/java/org/springframework/samples/petclinic/visit/VisitRepository.java
index c7853d170..25a117e94 100644
--- a/src/main/java/org/springframework/samples/petclinic/visit/VisitRepository.java
+++ b/src/main/java/org/springframework/samples/petclinic/visit/VisitRepository.java
@@ -23,7 +23,7 @@ import org.springframework.samples.petclinic.model.BaseEntity;
/**
* Repository class for Visit
domain objects All method names are compliant with Spring Data naming
- * conventions so this interface can easily be extended for Spring Data See here: http://static.springsource.org/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
+ * conventions so this interface can easily be extended for Spring Data See here: https://docs.spring.io/spring-data/jpa/docs/current/reference/html/jpa.repositories.html#jpa.query-methods.query-creation
*
* @author Ken Krebs
* @author Juergen Hoeller
diff --git a/src/main/resources/templates/error.html b/src/main/resources/templates/error.html
index 2b40d7f98..b9026690e 100644
--- a/src/main/resources/templates/error.html
+++ b/src/main/resources/templates/error.html
@@ -1,6 +1,6 @@
-
+