Fix Javadoc warnings.

spring-credhub-core/src/main/java/org/springframework/credhub/core/CredHubOperations.java

@@ -38,6 +38,7 @@ public interface CredHubOperations {
 	 * value.
 	 *
 	 * @param credentialRequest the credential to write to CredHub; must not be {@literal null}
+	 * @param <T> the credential implementation type
 	 * @return the details of the written credential
 	 */
 	<T> CredentialDetails<T> write(final CredentialRequest<T> credentialRequest);
@@ -48,6 +49,8 @@ public interface CredHubOperations {
 	 *
 	 * @param parametersRequest the parameters of the new credential to generate in CredHub;
 	 *                                must not be {@literal null}
+	 * @param <T> the credential implementation type
+	 * @param <P> the credential parameter implementation type
 	 * @return the details of the generated credential
 	 */
 	<T, P> CredentialDetails<T> generate(ParametersRequest<P> parametersRequest);
@@ -57,6 +60,7 @@ public interface CredHubOperations {
 	 *
 	 * @param id the ID of the credential; must not be {@literal null}
 	 * @param credentialType the type of the credential to be retrieved; must not be {@literal null}
+	 * @param <T> the credential implementation type
 	 * @return the details of the retrieved credential
 	 */
 	<T> CredentialDetails<T> getById(final String id, Class<T> credentialType);
@@ -67,6 +71,8 @@ public interface CredHubOperations {
 	 * including historical values.
 	 *
 	 * @param name the name of the credential; must not be {@literal null}
+	 * @param credentialType the type of credential expected to be returned
+	 * @param <T> the credential implementation type
 	 * @return the details of the retrieved credential, including history
 	 */
 	<T> List<CredentialDetails<T>> getByName(final String name, Class<T> credentialType);
@@ -77,6 +83,8 @@ public interface CredHubOperations {
 	 * including historical values.
 	 *
 	 * @param name the name of the credential; must not be {@literal null}
+	 * @param credentialType the type of credential expected to be returned
+	 * @param <T> the credential implementation type
 	 * @return the details of the retrieved credential, including history
 	 */
 	<T> List<CredentialDetails<T>> getByName(final CredentialName name, Class<T> credentialType);
@@ -186,6 +194,7 @@ public interface CredHubOperations {
 	 * by other methods.
 	 *
 	 * @param callback wrapper for the callback method
+	 * @param <T> the credential implementation type
 	 * @return the return value from the callback method
 	 */
 	<T> T doWithRest(RestOperationsCallback<T> callback);

spring-credhub-core/src/main/java/org/springframework/credhub/support/CredentialRequest.java

@@ -36,6 +36,8 @@ public class CredentialRequest<T> extends CredHubRequest {
 
 	/**
 	 * Initialize a {@link CredentialRequest}.
+	 *
+	 * @param type the credential implementation type
 	 */
 	protected CredentialRequest(CredentialType type) {
 		this.credentialType = type;

spring-credhub-core/src/main/java/org/springframework/credhub/support/json/JsonCredential.java

@@ -25,6 +25,7 @@ import java.util.Map;
  *
  * @author Scott Frederick
  */
+@SuppressWarnings("javadoc")
 public class JsonCredential extends HashMap<String, Object> {
 	/**
 	 * @see HashMap#HashMap()
@@ -35,6 +36,8 @@ public class JsonCredential extends HashMap<String, Object> {
 
 	/**
 	 * @see HashMap#HashMap(int)
+	 *
+	 * @param  initialCapacity the initial capacity
 	 */
 	public JsonCredential(int initialCapacity) {
 		super(initialCapacity);
@@ -42,6 +45,9 @@ public class JsonCredential extends HashMap<String, Object> {
 
 	/**
 	 * @see HashMap#HashMap(int, float)
+	 *
+	 * @param initialCapacity the initial capacity
+	 * @param loadFactor      the load factor
 	 */
 	public JsonCredential(int initialCapacity, float loadFactor) {
 		super(initialCapacity, loadFactor);
@@ -49,6 +55,8 @@ public class JsonCredential extends HashMap<String, Object> {
 
 	/**
 	 * @see HashMap#HashMap(Map)
+	 *
+	 * @param m the map whose mappings are to be placed in this map
 	 */
 	public JsonCredential(Map<? extends String, ?> m) {
 		super(m);