fix html related warnings in javadoc

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>
diff --git a/src/javax/persistence/ForeignKey.java b/src/javax/persistence/ForeignKey.java
index c0294a8..345edbb 100644
--- a/src/javax/persistence/ForeignKey.java
+++ b/src/javax/persistence/ForeignKey.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011 - 2013 Oracle Corporation. All rights reserved.
+ * Copyright (c) 2011 - 2017 Oracle Corporation. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
@@ -30,7 +30,6 @@
  * The syntax used in the <code>foreignKeyDefinition</code> element 
  * should follow the SQL syntax used by the target database for foreign
  * key constraints.  For example, this may be similar the following:
- * <p>
  * <pre>
  * FOREIGN KEY ( &#060;COLUMN expression&#062; {, &#060;COLUMN expression&#062;}... )
  * REFERENCES &#060;TABLE identifier&#062; [
diff --git a/src/javax/persistence/PersistenceContext.java b/src/javax/persistence/PersistenceContext.java
index 07455cc..3f4909d 100644
--- a/src/javax/persistence/PersistenceContext.java
+++ b/src/javax/persistence/PersistenceContext.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2008 - 2015 Oracle Corporation. All rights reserved.
+ * Copyright (c) 2008 - 2017 Oracle Corporation. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
@@ -60,7 +60,7 @@
      * automatically synchronized with the current transaction or whether
      * the persistence context must be explicitly joined to the current
      * transaction by means of the EntityManager 
-     * {@link EntityManager#joinTransaction <code>joinTransaction</code>} method.
+     * {@link EntityManager#joinTransaction joinTransaction} method.
      * @since Java Persistence 2.1
      */
     SynchronizationType synchronization() default SynchronizationType.SYNCHRONIZED;
diff --git a/src/javax/persistence/StoredProcedureQuery.java b/src/javax/persistence/StoredProcedureQuery.java
index 7b4265f..51acf3e 100644
--- a/src/javax/persistence/StoredProcedureQuery.java
+++ b/src/javax/persistence/StoredProcedureQuery.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2011 - 2013 Oracle Corporation. All rights reserved.
+ * Copyright (c) 2011 - 2017 Oracle Corporation. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
@@ -24,7 +24,6 @@
  * <p>
  * Stored procedure query execution may be controlled in accordance with 
  * the following:
- * <p>
  * <ul>
  * <li>The <code>setParameter</code> methods are used to set the values of 
  * all required <code>IN</code> and <code>INOUT</code> parameters.