feat: Update Gapic-Generator to generate libraries using java.time methods (#3321)

This PR leverages the changes in
#1872 so the
generated code uses the new `java.time` methods.
All test-related changes are golden file/string changes.

#### SonarCloud complaints
The SonarCloud scanner complains about code duplication in the generator
code, although after inspection I could not find a reason for stating
so.
It also complains about showcase although the changes in this folder are
strictly golden-oriented.

#### Downstream check failures
They are of the form "could not find remote branch `vX.X.X` to
checkout". This seems not related to this PR as it is also present in
#3318

Author: diegomarquezp

.gitignore

@@ -25,4 +25,4 @@ target/
 **/build/
 **/dist/
 library_generation/**/*.jar
-
+**/google-java-format.jar

gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/common/AbstractServiceStubSettingsClassComposer.java

@@ -104,6 +104,7 @@
 import com.google.longrunning.Operation;
 import com.google.protobuf.Empty;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -120,7 +121,6 @@
 import java.util.stream.Collectors;
 import javax.annotation.Generated;
 import javax.annotation.Nullable;
-import org.threeten.bp.Duration;
 
 public abstract class AbstractServiceStubSettingsClassComposer implements ClassComposer {
   private static final Statement EMPTY_LINE_STATEMENT = EmptyLineStatement.create();

gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/common/RetrySettingsComposer.java

@@ -390,7 +390,7 @@ public static Expr createBatchingBuilderSettingsExpr(
     batchingSettingsBuilderExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(batchingSettingsBuilderExpr)
-            .setMethodName("setDelayThreshold")
+            .setMethodName("setDelayThresholdDuration")
             .setArguments(
                 createDurationOfMillisExpr(toValExpr(batchingSettings.delayThresholdMillis())))
             .build();
@@ -511,7 +511,7 @@ private static List<Expr> createRetrySettingsExprs(
       settingsBuilderExpr =
           MethodInvocationExpr.builder()
               .setExprReferenceExpr(settingsBuilderExpr)
-              .setMethodName("setInitialRetryDelay")
+              .setMethodName("setInitialRetryDelayDuration")
               .setArguments(createDurationOfMillisExpr(toValExpr(retryPolicy.getInitialBackoff())))
               .build();
 
@@ -528,7 +528,7 @@ private static List<Expr> createRetrySettingsExprs(
       settingsBuilderExpr =
           MethodInvocationExpr.builder()
               .setExprReferenceExpr(settingsBuilderExpr)
-              .setMethodName("setMaxRetryDelay")
+              .setMethodName("setMaxRetryDelayDuration")
               .setArguments(createDurationOfMillisExpr(toValExpr(retryPolicy.getMaxBackoff())))
               .build();
     }
@@ -537,7 +537,7 @@ private static List<Expr> createRetrySettingsExprs(
       settingsBuilderExpr =
           MethodInvocationExpr.builder()
               .setExprReferenceExpr(settingsBuilderExpr)
-              .setMethodName("setInitialRpcTimeout")
+              .setMethodName("setInitialRpcTimeoutDuration")
               .setArguments(createDurationOfMillisExpr(toValExpr(settings.timeout())))
               .build();
     }
@@ -553,7 +553,8 @@ private static List<Expr> createRetrySettingsExprs(
             .build();
 
     if (!settings.kind().equals(GapicRetrySettings.Kind.NONE)) {
-      for (String setterMethodName : Arrays.asList("setMaxRpcTimeout", "setTotalTimeout")) {
+      for (String setterMethodName :
+          Arrays.asList("setMaxRpcTimeoutDuration", "setTotalTimeoutDuration")) {
         settingsBuilderExpr =
             MethodInvocationExpr.builder()
                 .setExprReferenceExpr(settingsBuilderExpr)
@@ -614,7 +615,7 @@ private static Expr createLroRetrySettingsExpr(
     lroRetrySettingsExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(lroRetrySettingsExpr)
-            .setMethodName("setInitialRetryDelay")
+            .setMethodName("setInitialRetryDelayDuration")
             .setArguments(createDurationOfMillisExpr(toValExpr(initialPollDelayMillis)))
             .build();
 
@@ -628,7 +629,7 @@ private static Expr createLroRetrySettingsExpr(
     lroRetrySettingsExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(lroRetrySettingsExpr)
-            .setMethodName("setMaxRetryDelay")
+            .setMethodName("setMaxRetryDelayDuration")
             .setArguments(createDurationOfMillisExpr(toValExpr(maxPollDelayMillis)))
             .build();
 
@@ -638,7 +639,7 @@ private static Expr createLroRetrySettingsExpr(
     lroRetrySettingsExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(lroRetrySettingsExpr)
-            .setMethodName("setInitialRpcTimeout")
+            .setMethodName("setInitialRpcTimeoutDuration")
             .setArguments(zeroDurationExpr)
             .build();
 
@@ -654,14 +655,14 @@ private static Expr createLroRetrySettingsExpr(
     lroRetrySettingsExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(lroRetrySettingsExpr)
-            .setMethodName("setMaxRpcTimeout")
+            .setMethodName("setMaxRpcTimeoutDuration")
             .setArguments(zeroDurationExpr)
             .build();
 
     lroRetrySettingsExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(lroRetrySettingsExpr)
-            .setMethodName("setTotalTimeout")
+            .setMethodName("setTotalTimeoutDuration")
             .setArguments(createDurationOfMillisExpr(toValExpr(totalPollTimeoutMillis)))
             .build();
 
@@ -714,7 +715,7 @@ private static TypeStore createStaticTypes() {
     List<Class<?>> concreteClazzes =
         Arrays.asList(
             BatchingSettings.class,
-            org.threeten.bp.Duration.class,
+            java.time.Duration.class,
             FlowControlSettings.class,
             FlowController.LimitExceededBehavior.class,
             ImmutableMap.class,

gapic-generator-java/src/main/java/com/google/api/generator/gapic/composer/samplecode/SettingsSampleComposer.java

@@ -70,15 +70,15 @@ public static Optional<Sample> composeSettingsSample(
             .build();
 
     // Builder with set value method
-    // e.g foobarSettingBuilder.fooSetting().setRetrySettings(
-    // echoSettingsBuilder.echoSettings().getRetrySettings().toBuilder().setTotalTimeout(Duration.ofSeconds(30)).build());
+    // e.g. foobarSettingBuilder.fooSetting().setRetrySettings(
+    //        echoSettingsBuilder.echoSettings().getRetrySettings().toBuilder()
+    //        .setTotalTimeoutDuration(Duration.ofSeconds(30)).build());
     MethodInvocationExpr settingBuilderMethodInvocationExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(localSettingsVarExpr)
             .setMethodName(
                 JavaStyle.toLowerCamelCase(String.format("%sSettings", methodNameOpt.get())))
             .build();
-    String disambiguation = "Settings";
     MethodInvocationExpr retrySettingsArgExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(settingBuilderMethodInvocationExpr)
@@ -364,7 +364,7 @@ public static Optional<Sample> composeLroSettingsSample(
     retrySettingsArgExpr =
         MethodInvocationExpr.builder()
             .setExprReferenceExpr(retrySettingsArgExpr)
-            .setMethodName("setMaxRetryDelay")
+            .setMethodName("setMaxRetryDelayDuration")
             .setArguments(ofFiveThousandMillisMethodInvocationExpr)
             .build();
     retrySettingsArgExpr =

gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/common/RetrySettingsComposerTest.java

@@ -119,20 +119,20 @@ void paramDefinitionsBlock_basic() {
             "ImmutableMap.Builder<String, RetrySettings> definitions = ImmutableMap.builder();\n",
             "RetrySettings settings = null;\n",
             "settings ="
-                + " RetrySettings.newBuilder().setInitialRetryDelay("
+                + " RetrySettings.newBuilder().setInitialRetryDelayDuration("
                 + "Duration.ofMillis(100L)).setRetryDelayMultiplier(2.0)"
-                + ".setMaxRetryDelay(Duration.ofMillis(3000L))"
-                + ".setInitialRpcTimeout(Duration.ofMillis(10000L))"
+                + ".setMaxRetryDelayDuration(Duration.ofMillis(3000L))"
+                + ".setInitialRpcTimeoutDuration(Duration.ofMillis(10000L))"
                 + ".setRpcTimeoutMultiplier(1.0)"
-                + ".setMaxRpcTimeout(Duration.ofMillis(10000L))"
-                + ".setTotalTimeout(Duration.ofMillis(10000L)).build();\n",
+                + ".setMaxRpcTimeoutDuration(Duration.ofMillis(10000L))"
+                + ".setTotalTimeoutDuration(Duration.ofMillis(10000L)).build();\n",
             "definitions.put(\"retry_policy_1_params\", settings);\n",
             "settings ="
                 + " RetrySettings.newBuilder()"
-                + ".setInitialRpcTimeout(Duration.ofMillis(5000L))"
+                + ".setInitialRpcTimeoutDuration(Duration.ofMillis(5000L))"
                 + ".setRpcTimeoutMultiplier(1.0)"
-                + ".setMaxRpcTimeout(Duration.ofMillis(5000L))"
-                + ".setTotalTimeout(Duration.ofMillis(5000L)).build();\n",
+                + ".setMaxRpcTimeoutDuration(Duration.ofMillis(5000L))"
+                + ".setTotalTimeoutDuration(Duration.ofMillis(5000L)).build();\n",
             "definitions.put(\"no_retry_0_params\", settings);\n",
             "RETRY_PARAM_DEFINITIONS = definitions.build();\n",
             "}\n");
@@ -341,10 +341,10 @@ void lroBuilderExpr() {
                 + "WaitResponse.class))"
                 + ".setMetadataTransformer(ProtoOperationTransformers.MetadataTransformer.create("
                 + "WaitMetadata.class)).setPollingAlgorithm(OperationTimedPollAlgorithm.create("
-                + "RetrySettings.newBuilder().setInitialRetryDelay(Duration.ofMillis(5000L))"
-                + ".setRetryDelayMultiplier(1.5).setMaxRetryDelay(Duration.ofMillis(45000L))"
-                + ".setInitialRpcTimeout(Duration.ZERO).setRpcTimeoutMultiplier(1.0)"
-                + ".setMaxRpcTimeout(Duration.ZERO).setTotalTimeout(Duration.ofMillis(300000L))"
+                + "RetrySettings.newBuilder().setInitialRetryDelayDuration(Duration.ofMillis(5000L))"
+                + ".setRetryDelayMultiplier(1.5).setMaxRetryDelayDuration(Duration.ofMillis(45000L))"
+                + ".setInitialRpcTimeoutDuration(Duration.ZERO).setRpcTimeoutMultiplier(1.0)"
+                + ".setMaxRpcTimeoutDuration(Duration.ZERO).setTotalTimeoutDuration(Duration.ofMillis(300000L))"
                 + ".build()))");
     assertEquals(expected, writerVisitor.write());
   }
@@ -394,7 +394,7 @@ void batchingSettings_minimalFlowControlSettings() {
             + "BatchingSettings.newBuilder()"
             + ".setElementCountThreshold(100L)"
             + ".setRequestByteThreshold(1048576L)"
-            + ".setDelayThreshold(Duration.ofMillis(10L))"
+            + ".setDelayThresholdDuration(Duration.ofMillis(10L))"
             + ".setFlowControlSettings("
             + "FlowControlSettings.newBuilder()"
             + ".setLimitExceededBehavior(FlowController.LimitExceededBehavior.Ignore)"
@@ -451,7 +451,7 @@ void batchingSettings_fullFlowControlSettings() {
             + "BatchingSettings.newBuilder()"
             + ".setElementCountThreshold(1000L)"
             + ".setRequestByteThreshold(1048576L)"
-            + ".setDelayThreshold(Duration.ofMillis(50L))"
+            + ".setDelayThresholdDuration(Duration.ofMillis(50L))"
             + ".setFlowControlSettings("
             + "FlowControlSettings.newBuilder()"
             + ".setMaxOutstandingElementCount(100000L)"

gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/goldens/DeprecatedServiceStubSettings.golden

@@ -22,9 +22,9 @@ import com.google.common.collect.Lists;
 import com.google.protobuf.Empty;
 import com.google.testdata.v1.FibonacciRequest;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -206,10 +206,10 @@ public class DeprecatedServiceStubSettings extends StubSettings<DeprecatedServic
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(60000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(60000L))
-              .setTotalTimeout(Duration.ofMillis(60000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(60000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(60000L))
               .build();
       definitions.put("no_retry_0_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();

gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/goldens/EchoSettings.golden

@@ -89,7 +89,7 @@ import javax.annotation.Generated;
  *         RetrySettings.newBuilder()
  *             .setInitialRetryDelayDuration(Duration.ofMillis(500))
  *             .setRetryDelayMultiplier(1.5)
- *             .setMaxRetryDelay(Duration.ofMillis(5000))
+ *             .setMaxRetryDelayDuration(Duration.ofMillis(5000))
  *             .setTotalTimeoutDuration(Duration.ofHours(24))
  *             .build());
  * echoSettingsBuilder

gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/goldens/EchoStubSettings.golden

@@ -49,9 +49,9 @@ import com.google.showcase.v1beta1.WaitMetadata;
 import com.google.showcase.v1beta1.WaitRequest;
 import com.google.showcase.v1beta1.WaitResponse;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -118,7 +118,7 @@ import org.threeten.bp.Duration;
  *         RetrySettings.newBuilder()
  *             .setInitialRetryDelayDuration(Duration.ofMillis(500))
  *             .setRetryDelayMultiplier(1.5)
- *             .setMaxRetryDelay(Duration.ofMillis(5000))
+ *             .setMaxRetryDelayDuration(Duration.ofMillis(5000))
  *             .setTotalTimeoutDuration(Duration.ofHours(24))
  *             .build());
  * echoSettingsBuilder
@@ -438,21 +438,21 @@ public class EchoStubSettings extends StubSettings<EchoStubSettings> {
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(2.0)
-              .setMaxRetryDelay(Duration.ofMillis(3000L))
-              .setInitialRpcTimeout(Duration.ofMillis(10000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(3000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(10000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(10000L))
-              .setTotalTimeout(Duration.ofMillis(10000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(10000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(10000L))
               .build();
       definitions.put("retry_policy_1_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRpcTimeout(Duration.ofMillis(5000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(5000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(5000L))
-              .setTotalTimeout(Duration.ofMillis(5000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(5000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(5000L))
               .build();
       definitions.put("no_retry_0_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
@@ -575,13 +575,13 @@ public class EchoStubSettings extends StubSettings<EchoStubSettings> {
           .setPollingAlgorithm(
               OperationTimedPollAlgorithm.create(
                   RetrySettings.newBuilder()
-                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setInitialRetryDelayDuration(Duration.ofMillis(5000L))
                       .setRetryDelayMultiplier(1.5)
-                      .setMaxRetryDelay(Duration.ofMillis(45000L))
-                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setMaxRetryDelayDuration(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeoutDuration(Duration.ZERO)
                       .setRpcTimeoutMultiplier(1.0)
-                      .setMaxRpcTimeout(Duration.ZERO)
-                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .setMaxRpcTimeoutDuration(Duration.ZERO)
+                      .setTotalTimeoutDuration(Duration.ofMillis(300000L))
                       .build()));
 
       return builder;

gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/goldens/LoggingServiceV2StubSettings.golden

@@ -54,10 +54,10 @@ import com.google.logging.v2.WriteLogEntriesRequest;
 import com.google.logging.v2.WriteLogEntriesResponse;
 import com.google.protobuf.Empty;
 import java.io.IOException;
+import java.time.Duration;
 import java.util.Collection;
 import java.util.List;
 import javax.annotation.Generated;
-import org.threeten.bp.Duration;
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
@@ -557,24 +557,24 @@ public class LoggingServiceV2StubSettings extends StubSettings<LoggingServiceV2S
       RetrySettings settings = null;
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(60000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(60000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(60000L))
-              .setTotalTimeout(Duration.ofMillis(60000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(60000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(60000L))
               .build();
       definitions.put("retry_policy_1_params", settings);
       settings =
           RetrySettings.newBuilder()
-              .setInitialRetryDelay(Duration.ofMillis(100L))
+              .setInitialRetryDelayDuration(Duration.ofMillis(100L))
               .setRetryDelayMultiplier(1.3)
-              .setMaxRetryDelay(Duration.ofMillis(60000L))
-              .setInitialRpcTimeout(Duration.ofMillis(3600000L))
+              .setMaxRetryDelayDuration(Duration.ofMillis(60000L))
+              .setInitialRpcTimeoutDuration(Duration.ofMillis(3600000L))
               .setRpcTimeoutMultiplier(1.0)
-              .setMaxRpcTimeout(Duration.ofMillis(3600000L))
-              .setTotalTimeout(Duration.ofMillis(3600000L))
+              .setMaxRpcTimeoutDuration(Duration.ofMillis(3600000L))
+              .setTotalTimeoutDuration(Duration.ofMillis(3600000L))
               .build();
       definitions.put("retry_policy_2_params", settings);
       RETRY_PARAM_DEFINITIONS = definitions.build();
@@ -651,7 +651,7 @@ public class LoggingServiceV2StubSettings extends StubSettings<LoggingServiceV2S
               BatchingSettings.newBuilder()
                   .setElementCountThreshold(1000L)
                   .setRequestByteThreshold(1048576L)
-                  .setDelayThreshold(Duration.ofMillis(50L))
+                  .setDelayThresholdDuration(Duration.ofMillis(50L))
                   .setFlowControlSettings(
                       FlowControlSettings.newBuilder()
                           .setMaxOutstandingElementCount(100000L)