Fix Javadoc @code tags

Signed-off-by: Johnny Lim <izeye@naver.com>

spring-core/src/main/java/org/springframework/core/SpringProperties.java

@@ -123,7 +123,7 @@ public final class SpringProperties {
 	 * Retrieve the flag for the given property key.
 	 * @param key the property key
 	 * @return {@code true} if the property is set to the string "true"
-	 * (ignoring case), {@code} false otherwise
+	 * (ignoring case), {@code false} otherwise
 	 */
 	public static boolean getFlag(String key) {
 		return Boolean.parseBoolean(getProperty(key));

spring-jdbc/src/main/java/org/springframework/jdbc/core/JdbcOperations.java

@@ -163,7 +163,7 @@ public interface JdbcOperations {
 	 * @param sql the SQL query to execute
 	 * @param rowMapper a callback that will map one object per row
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if there is any problem executing the query
@@ -598,7 +598,7 @@ public interface JdbcOperations {
 	 * (constants from {@code java.sql.Types})
 	 * @param rowMapper a callback that will map one object per row
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if the query fails
@@ -617,7 +617,7 @@ public interface JdbcOperations {
 	 * only the argument value but also the SQL type and optionally the scale
 	 * @param rowMapper a callback that will map one object per row
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if the query fails
@@ -637,7 +637,7 @@ public interface JdbcOperations {
 	 * may also contain {@link SqlParameterValue} objects which indicate not
 	 * only the argument value but also the SQL type and optionally the scale
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if the query fails

spring-jdbc/src/main/java/org/springframework/jdbc/core/namedparam/NamedParameterJdbcOperations.java

@@ -267,7 +267,7 @@ public interface NamedParameterJdbcOperations {
 	 * @param paramSource container of arguments to bind to the query
 	 * @param rowMapper object that will map one object per row
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if the query fails
@@ -284,7 +284,7 @@ public interface NamedParameterJdbcOperations {
 	 * (leaving it to the PreparedStatement to guess the corresponding SQL type)
 	 * @param rowMapper object that will map one object per row
 	 * @return the single mapped object (may be {@code null} if the given
-	 * {@link RowMapper} returned {@code} null)
+	 * {@link RowMapper} returned {@code null})
 	 * @throws org.springframework.dao.IncorrectResultSizeDataAccessException
 	 * if the query does not return exactly one row
 	 * @throws DataAccessException if the query fails

spring-messaging/src/main/java/org/springframework/messaging/simp/broker/BrokerAvailabilityEvent.java

@@ -33,8 +33,8 @@ public class BrokerAvailabilityEvent extends ApplicationEvent {
 	/**
 	 * Creates a new {@code BrokerAvailabilityEvent}.
 	 *
-	 * @param brokerAvailable {@code true} if the broker is available, {@code}
+	 * @param brokerAvailable {@code true} if the broker is available, {@code
-	 * false otherwise
+	 * false} otherwise
 	 * @param source the component that is acting as the broker, or as a relay
 	 * for an external broker, that has changed availability. Must not be {@code
 	 * null}.

spring-test/src/main/java/org/springframework/test/context/aot/AotTestAttributes.java

@@ -124,7 +124,7 @@ public interface AotTestAttributes {
 	 * Retrieve the attribute value for the given name as a {@code boolean}.
 	 * @param name the unique attribute name
 	 * @return {@code true} if the attribute is set to "true" (ignoring case),
-	 * {@code} false otherwise
+	 * {@code false} otherwise
 	 * @see #getString(String)
 	 * @see #setAttribute(String, String)
 	 * @see Boolean#parseBoolean(String)

spring-tx/src/main/java/org/springframework/jca/endpoint/AbstractMessageEndpointFactory.java

@@ -144,7 +144,7 @@ public abstract class AbstractMessageEndpointFactory implements MessageEndpointF
 
 	/**
 	 * Implementation of the JCA 1.7 {@code #getEndpointClass()} method,
-	 * returning {@code} null in order to indicate a synthetic endpoint type.
+	 * returning {@code null} in order to indicate a synthetic endpoint type.
 	 */
 	@Override
 	public @Nullable Class<?> getEndpointClass() {

spring-web/src/main/java/org/springframework/http/converter/json/AbstractJsonHttpMessageConverter.java

@@ -133,7 +133,7 @@ public abstract class AbstractJsonHttpMessageConverter extends AbstractGenericHt
 	/**
 	 * Template method that reads the JSON-bound object from the given {@link Reader}.
 	 * @param resolvedType the resolved generic type
-	 * @param reader the {@code} Reader to use
+	 * @param reader the {@code Reader} to use
 	 * @return the JSON-bound object
 	 * @throws Exception in case of read/parse failures
 	 */
@@ -143,7 +143,7 @@ public abstract class AbstractJsonHttpMessageConverter extends AbstractGenericHt
 	 * Template method that writes the JSON-bound object to the given {@link Writer}.
 	 * @param object the object to write to the output message
 	 * @param type the type of object to write (may be {@code null})
-	 * @param writer the {@code} Writer to use
+	 * @param writer the {@code Writer} to use
 	 * @throws Exception in case of write failures
 	 */
 	protected abstract void writeInternal(Object object, @Nullable Type type, Writer writer) throws Exception;

spring-webmvc/src/main/java/org/springframework/web/servlet/resource/ResourceTransformerSupport.java

@@ -66,7 +66,7 @@ public abstract class ResourceTransformerSupport implements ResourceTransformer
 	 * @param request the current request
 	 * @param resource the resource being transformed
 	 * @param transformerChain the transformer chain
-	 * @return the resolved URL, or {@code} if not resolvable
+	 * @return the resolved URL, or {@code null} if not resolvable
 	 */
 	protected @Nullable String resolveUrlPath(String resourcePath, HttpServletRequest request,
 			Resource resource, ResourceTransformerChain transformerChain) {