Deprecate permissions fields on requests.

Fixes #45

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

@@ -17,6 +17,7 @@
 package org.springframework.credhub.support;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
+import org.springframework.credhub.core.permission.CredHubPermissionOperations;
 import org.springframework.credhub.support.permissions.CredentialPermission;
 import org.springframework.util.Assert;
 
@@ -206,6 +207,9 @@ public B overwrite(boolean overwrite) {
 		 * Sets a value indicating the action CredHub should take when a credential being written
 		 * or generated already exists.
 		 *
+		 * As of CredHub 2.0, this value must not be set on write requests (write requests always
+		 * overwrite the credential that already exists) but may be set on generate requests.
+		 *
 		 * @param mode the {@link WriteMode} to use when a credential exists
 		 * @return the builder
 		 */
@@ -218,9 +222,10 @@ public B mode(WriteMode mode) {
 		 * Add an {@link CredentialPermission} to the permissions that will be assigned to the
 		 * credential.
 		 *
-		 * @param permission a {@link CredentialPermission} to assign to the
-		 * credential
+		 * @param permission a {@link CredentialPermission} to assign to the credential
 		 * @return the builder
+		 * @deprecated as of CredHub 2.0, use {@link CredHubPermissionOperations} to assign
+		 * permissions to a credential after it is created
 		 */
 		public B permission(CredentialPermission permission) {
 			targetObj.getAdditionalPermissions().add(permission);
@@ -234,6 +239,8 @@ public B permission(CredentialPermission permission) {
 		 * @param permissions a collection of {@link CredentialPermission}s to
 		 * assign to the credential
 		 * @return the builder
+		 * @deprecated as of CredHub 2.0, use {@link CredHubPermissionOperations} to assign
+		 * permissions to a credential after it is created
 		 */
 		public B permissions(Collection<? extends CredentialPermission> permissions) {
 			targetObj.getAdditionalPermissions().addAll(permissions);
@@ -247,6 +254,8 @@ public B permissions(Collection<? extends CredentialPermission> permissions) {
 		 * @param permissions a collection of {@link CredentialPermission}s to
 		 * assign to the credential
 		 * @return the builder
+		 * @deprecated as of CredHub 2.0, use {@link CredHubPermissionOperations} to assign
+		 * permissions to a credential after it is created
 		 */
 		public B permissions(CredentialPermission... permissions) {
 			targetObj.getAdditionalPermissions().addAll(Arrays.asList(permissions));

spring-credhub-core/src/test/java/org/springframework/credhub/support/CredHubRequestUnitTestsBase.java

@@ -34,6 +34,7 @@ public abstract class CredHubRequestUnitTestsBase {
 	protected CredHubRequestBuilder requestBuilder;
 
 	@Test
+	@SuppressWarnings("deprecation")
 	public void serializationWithOnePermission() {
 		requestBuilder
 				.permission(CredentialPermission.builder()
@@ -50,7 +51,7 @@ public void serializationWithOnePermission() {
 	}
 
 	@Test
-	@SuppressWarnings("unchecked")
+	@SuppressWarnings({"unchecked", "deprecation"})
 	public void serializationWithThreePermissions() {
 		requestBuilder
 				.permission(CredentialPermission.builder()

spring-credhub-integration-tests/src/test/java/org/springframework/credhub/integration/CertificateIntegrationTests.java

@@ -36,6 +36,7 @@
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assume.assumeTrue;
 
 public class CertificateIntegrationTests extends CredHubIntegrationTests {
 	private static final SimpleCredentialName CREDENTIAL_NAME =
@@ -46,6 +47,8 @@ public class CertificateIntegrationTests extends CredHubIntegrationTests {
 
 	@Before
 	public void setUp() {
+		assumeTrue(serverApiIsV2());
+
 		credentials = operations.credentials();
 		certificates = operations.certificates();