Align javadoc improvements

spring-tx/src/main/java/org/springframework/dao/support/PersistenceExceptionTranslator.java

@@ -34,19 +34,19 @@ public interface PersistenceExceptionTranslator {
 
 	/**
 	 * Translate the given runtime exception thrown by a persistence framework to a
-	 * corresponding exception from Spring's generic DataAccessException hierarchy,
+	 * corresponding exception from Spring's generic
-	 * if possible.
+	 * {@link org.springframework.dao.DataAccessException} hierarchy, if possible.
-	 * <p>Do not translate exceptions that are not understand by this translator:
+	 * <p>Do not translate exceptions that are not understood by this translator:
 	 * for example, if coming from another persistence framework, or resulting
-	 * from user code and unrelated to persistence.
+	 * from user code or otherwise unrelated to persistence.
 	 * <p>Of particular importance is the correct translation to
 	 * DataIntegrityViolationException, for example on constraint violation.
 	 * Implementations may use Spring JDBC's sophisticated exception translation
 	 * to provide further information in the event of SQLException as a root cause.
-	 * @param ex a RuntimeException thrown
+	 * @param ex a RuntimeException to translate
 	 * @return the corresponding DataAccessException (or {@code null} if the
 	 * exception could not be translated, as in this case it may result from
-	 * user code rather than an actual persistence problem)
+	 * user code rather than from an actual persistence problem)
 	 * @see org.springframework.dao.DataIntegrityViolationException
 	 * @see org.springframework.jdbc.support.SQLExceptionTranslator
 	 */