chore(deps): upgrade gapic-generator-java to 2.8.0 and update gax-jav…

…a to 2.18.1 (#243)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 450543911

Source-Link: googleapis/googleapis@5528344

Source-Link: https://github.com/googleapis/googleapis-gen/commit/9f6775cab1958982b88967a43e5e806af0f135db
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOWY2Nzc1Y2FiMTk1ODk4MmI4ODk2N2E0M2U1ZTgwNmFmMGYxMzVkYiJ9

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1/DataprocMetastoreClient.java

@@ -18,7 +18,6 @@
 
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
-import com.google.api.core.BetaApi;
 import com.google.api.gax.core.BackgroundResource;
 import com.google.api.gax.longrunning.OperationFuture;
 import com.google.api.gax.paging.AbstractFixedSizeCollection;
@@ -148,7 +147,6 @@ public static final DataprocMetastoreClient create(DataprocMetastoreSettings set
    * Constructs an instance of DataprocMetastoreClient, using the given stub for making calls. This
    * is for advanced usage - prefer using create(DataprocMetastoreSettings).
    */
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public static final DataprocMetastoreClient create(DataprocMetastoreStub stub) {
     return new DataprocMetastoreClient(stub);
   }
@@ -164,7 +162,6 @@ protected DataprocMetastoreClient(DataprocMetastoreSettings settings) throws IOE
     this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   protected DataprocMetastoreClient(DataprocMetastoreStub stub) {
     this.settings = null;
     this.stub = stub;
@@ -175,7 +172,6 @@ public final DataprocMetastoreSettings getSettings() {
     return settings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub getStub() {
     return stub;
   }

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1/stub/DataprocMetastoreStubSettings.java

@@ -466,7 +466,6 @@ public UnaryCallSettings<DeleteBackupRequest, Operation> deleteBackupSettings()
     return deleteBackupOperationSettings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub createStub() throws IOException {
     if (getTransportChannelProvider()
         .getTransportName()

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1alpha/DataprocMetastoreClient.java

@@ -149,7 +149,6 @@ public static final DataprocMetastoreClient create(DataprocMetastoreSettings set
    * Constructs an instance of DataprocMetastoreClient, using the given stub for making calls. This
    * is for advanced usage - prefer using create(DataprocMetastoreSettings).
    */
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public static final DataprocMetastoreClient create(DataprocMetastoreStub stub) {
     return new DataprocMetastoreClient(stub);
   }
@@ -165,7 +164,6 @@ protected DataprocMetastoreClient(DataprocMetastoreSettings settings) throws IOE
     this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   protected DataprocMetastoreClient(DataprocMetastoreStub stub) {
     this.settings = null;
     this.stub = stub;
@@ -176,7 +174,6 @@ public final DataprocMetastoreSettings getSettings() {
     return settings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub getStub() {
     return stub;
   }

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1alpha/stub/DataprocMetastoreStubSettings.java

@@ -467,7 +467,6 @@ public UnaryCallSettings<DeleteBackupRequest, Operation> deleteBackupSettings()
     return deleteBackupOperationSettings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub createStub() throws IOException {
     if (getTransportChannelProvider()
         .getTransportName()

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1beta/DataprocMetastoreClient.java

@@ -149,7 +149,6 @@ public static final DataprocMetastoreClient create(DataprocMetastoreSettings set
    * Constructs an instance of DataprocMetastoreClient, using the given stub for making calls. This
    * is for advanced usage - prefer using create(DataprocMetastoreSettings).
    */
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public static final DataprocMetastoreClient create(DataprocMetastoreStub stub) {
     return new DataprocMetastoreClient(stub);
   }
@@ -165,7 +164,6 @@ protected DataprocMetastoreClient(DataprocMetastoreSettings settings) throws IOE
     this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   protected DataprocMetastoreClient(DataprocMetastoreStub stub) {
     this.settings = null;
     this.stub = stub;
@@ -176,7 +174,6 @@ public final DataprocMetastoreSettings getSettings() {
     return settings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub getStub() {
     return stub;
   }

java-dataproc-metastore/google-cloud-dataproc-metastore/src/main/java/com/google/cloud/metastore/v1beta/stub/DataprocMetastoreStubSettings.java

@@ -467,7 +467,6 @@ public UnaryCallSettings<DeleteBackupRequest, Operation> deleteBackupSettings()
     return deleteBackupOperationSettings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public DataprocMetastoreStub createStub() throws IOException {
     if (getTransportChannelProvider()
         .getTransportName()