Fix devappserver support for JaxRS applications without a web.xml

api/src/main/java/com/google/appengine/api/blobstore/BlobstoreServiceImpl.java

@@ -164,12 +164,10 @@ public void delete(BlobKey... blobKeys) {
     try {
       ApiProxy.makeSyncCall(PACKAGE, "DeleteBlob", request.build().toByteArray());
     } catch (ApiProxy.ApplicationException ex) {
-      switch (BlobstoreServiceError.ErrorCode.forNumber(ex.getApplicationError())) {
-        case INTERNAL_ERROR:
-          throw new BlobstoreFailureException("An internal blobstore error occurred.");
-        default:
-          throw new BlobstoreFailureException("An unexpected error occurred.", ex);
-      }
+      throw switch (BlobstoreServiceError.ErrorCode.forNumber(ex.getApplicationError())) {
+        case INTERNAL_ERROR -> new BlobstoreFailureException("An internal blobstore error occurred.");
+        default -> new BlobstoreFailureException("An unexpected error occurred.", ex);
+      };
     }
   }
 

api/src/main/java/com/google/appengine/api/datastore/AsyncDatastoreServiceImpl.java

@@ -253,16 +253,11 @@ protected TransactionImpl.InternalTransaction doBeginTransaction(TransactionOpti
       }
     }
     if (options.transactionMode() != null) {
-      switch (options.transactionMode()) {
-        case READ_ONLY:
-          request.setMode(TransactionMode.READ_ONLY);
-          break;
-        case READ_WRITE:
-          request.setMode(TransactionMode.READ_WRITE);
-          break;
-        default:
-          throw new AssertionError("Unrecognized transaction mode: " + options.transactionMode());
-      }
+      request.setMode(switch (options.transactionMode()) {
+        case READ_ONLY -> TransactionMode.READ_ONLY;
+        case READ_WRITE -> TransactionMode.READ_WRITE;
+        default -> throw new AssertionError("Unrecognized transaction mode: " + options.transactionMode());
+      });
     }
 
     Future<DatastoreV3Pb.Transaction> future =
@@ -620,21 +615,11 @@ protected Map<Index, IndexState> wrap(CompositeIndices indices) throws Exception
         for (CompositeIndex ci : indices.getIndexList()) {
           Index index = IndexTranslator.convertFromPb(ci);
           switch (ci.getState()) {
-            case DELETED:
-              answer.put(index, IndexState.DELETING);
-              break;
-            case ERROR:
-              answer.put(index, IndexState.ERROR);
-              break;
-            case READ_WRITE:
-              answer.put(index, IndexState.SERVING);
-              break;
-            case WRITE_ONLY:
-              answer.put(index, IndexState.BUILDING);
-              break;
-            default:
-              logger.log(Level.WARNING, "Unrecognized index state for " + index);
-              break;
+            case DELETED -> answer.put(index, IndexState.DELETING);
+            case ERROR -> answer.put(index, IndexState.ERROR);
+            case READ_WRITE -> answer.put(index, IndexState.SERVING);
+            case WRITE_ONLY -> answer.put(index, IndexState.BUILDING);
+            default -> logger.log(Level.WARNING, "Unrecognized index state for {0}", index);
           }
         }
         return answer;

api/src/main/java/com/google/appengine/api/datastore/BaseQueryResultsSource.java

@@ -129,13 +129,7 @@ public BaseQueryResultsSource(
     this.offset = fetchOptions.getOffset() != null ? fetchOptions.getOffset() : 0;
     this.txn = txn;
     this.query = query;
-    this.currentTransactionProvider =
-        new CurrentTransactionProvider() {
-          @Override
-          public Transaction getCurrentTransaction(Transaction defaultValue) {
-            return txn;
-          }
-        };
+    this.currentTransactionProvider = defaultValue -> txn;
     this.initialQueryResultFuture = initialQueryResultFuture;
     this.skippedResults = 0;
   }

api/src/main/java/com/google/appengine/api/datastore/Blob.java

@@ -62,8 +62,7 @@ public int hashCode() {
   /** Two {@code Blob} objects are considered equal if their contained bytes match exactly. */
   @Override
   public boolean equals(@Nullable Object object) {
-    if (object instanceof Blob) {
-      Blob key = (Blob) object;
+    if (object instanceof Blob key) {
       return Arrays.equals(bytes, key.bytes);
     }
     return false;

api/src/main/java/com/google/appengine/api/datastore/CloudDatastoreV1ClientImpl.java

@@ -22,8 +22,6 @@
 import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
 import com.google.api.client.googleapis.compute.ComputeCredential;
 import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
-import com.google.api.client.http.HttpRequest;
-import com.google.api.client.http.HttpRequestInitializer;
 import com.google.api.client.json.gson.GsonFactory;
 import com.google.api.client.util.ExponentialBackOff;
 import com.google.auto.value.AutoValue;
@@ -59,6 +57,7 @@
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 import java.util.logging.Level;
+import java.util.logging.LogRecord;
 import java.util.logging.Logger;
 import org.jspecify.annotations.Nullable;
 
@@ -126,67 +125,31 @@ static synchronized CloudDatastoreV1ClientImpl create(DatastoreServiceConfig con
 
   @Override
   public Future<BeginTransactionResponse> beginTransaction(final BeginTransactionRequest req) {
-    return makeCall(
-        new Callable<BeginTransactionResponse>() {
-          @Override
-          public BeginTransactionResponse call() throws DatastoreException {
-            return datastore.beginTransaction(req);
-          }
-        });
+    return makeCall(() -> datastore.beginTransaction(req));
   }
 
   @Override
   public Future<RollbackResponse> rollback(final RollbackRequest req) {
-    return makeCall(
-        new Callable<RollbackResponse>() {
-          @Override
-          public RollbackResponse call() throws DatastoreException {
-            return datastore.rollback(req);
-          }
-        });
+    return makeCall(() -> datastore.rollback(req));
   }
 
   @Override
   public Future<RunQueryResponse> runQuery(final RunQueryRequest req) {
-    return makeCall(
-        new Callable<RunQueryResponse>() {
-          @Override
-          public RunQueryResponse call() throws DatastoreException {
-            return datastore.runQuery(req);
-          }
-        });
+    return makeCall(() -> datastore.runQuery(req));
   }
 
   @Override
   public Future<LookupResponse> lookup(final LookupRequest req) {
-    return makeCall(
-        new Callable<LookupResponse>() {
-          @Override
-          public LookupResponse call() throws DatastoreException {
-            return datastore.lookup(req);
-          }
-        });
+    return makeCall(() -> datastore.lookup(req));
   }
 
   @Override
   public Future<AllocateIdsResponse> allocateIds(final AllocateIdsRequest req) {
-    return makeCall(
-        new Callable<AllocateIdsResponse>() {
-          @Override
-          public AllocateIdsResponse call() throws DatastoreException {
-            return datastore.allocateIds(req);
-          }
-        });
+    return makeCall(() -> datastore.allocateIds(req));
   }
 
   private Future<CommitResponse> commit(final CommitRequest req) {
-    return makeCall(
-        new Callable<CommitResponse>() {
-          @Override
-          public CommitResponse call() throws DatastoreException {
-            return datastore.commit(req);
-          }
-        });
+    return makeCall(() -> datastore.commit(req));
   }
 
   @Override
@@ -222,10 +185,11 @@ public T call() throws Exception {
           return callable.call();
         } catch (Exception e) {
           if (isRetryable(e) && remainingTries > 0) {
-            logger.log(
-                Level.FINE,
-                String.format("Caught retryable exception; %d tries remaining", remainingTries),
-                e);
+            LogRecord lr =
+                new LogRecord(Level.FINE, "Caught retryable exception; {0} tries remaining");
+            lr.setParameters(new Object[] {remainingTries});
+            lr.setThrown(e);
+            logger.log(lr);
             Thread.sleep(backoff.nextBackOffMillis());
           } else {
             throw e;
@@ -249,21 +213,17 @@ private <T extends Message> Future<T> makeCall(final Callable<T> oneAttempt) {
             ? new Exception()
             : null;
     return executor.submit(
-        new Callable<T>() {
-          @Override
-          public T call() throws Exception {
-            try {
-              return new RetryingCallable<>(oneAttempt, maxRetries).call();
-            } catch (DatastoreException e) {
-              String message =
-                  stackTraceCapturer != null
-                      ? String.format(
-                          "%s%nstack trace when async call was initiated: <%n%s>",
-                          e.getMessage(), Throwables.getStackTraceAsString(stackTraceCapturer))
-                      : String.format(
-                          "%s%n(stack trace capture for async call is disabled)", e.getMessage());
-              throw DatastoreApiHelper.createV1Exception(e.getCode(), message, e);
-            }
+        () -> {
+          try {
+            return new RetryingCallable<>(oneAttempt, maxRetries).call();
+          } catch (DatastoreException e) {
+            String message =
+                stackTraceCapturer != null
+                    ? e.getMessage()
+                        + "\nstack trace when async call was initiated: <\n"
+                        + Throwables.getStackTraceAsString(stackTraceCapturer)
+                    : e.getMessage() + "\n(stack trace capture for async call is disabled)";
+            throw DatastoreApiHelper.createV1Exception(e.getCode(), message, e);
           }
         });
   }
@@ -275,13 +235,10 @@ private static DatastoreOptions createDatastoreOptions(
     setProjectEndpoint(projectId, options);
     options.credential(getCredential());
     options.initializer(
-        new HttpRequestInitializer() {
-          @Override
-          public void initialize(HttpRequest request) throws IOException {
-            request.setConnectTimeout(httpConnectTimeoutMillis);
-            if (config.getDeadline() != null) {
-              request.setReadTimeout((int) (config.getDeadline() * 1000));
-            }
+        request -> {
+          request.setConnectTimeout(httpConnectTimeoutMillis);
+          if (config.getDeadline() != null) {
+            request.setReadTimeout((int) (config.getDeadline() * 1000));
           }
         });
     return options.build();
@@ -298,8 +255,7 @@ private static Credential getCredential() throws GeneralSecurityException, IOExc
       if (privateKeyFile != null) {
         logger.log(
             Level.INFO,
-            "Service account and private key file were provided. "
-                + "Using service account credential.");
+            "Service account and private key file were provided. Using service account credential.");
         return getServiceAccountCredentialBuilder(serviceAccount)
             .setServiceAccountPrivateKeyFromP12File(new File(privateKeyFile))
             .build();
@@ -308,8 +264,7 @@ private static Credential getCredential() throws GeneralSecurityException, IOExc
       if (privateKey != null) {
         logger.log(
             Level.INFO,
-            "Service account and private key were provided. "
-                + "Using service account credential.");
+            "Service account and private key were provided. Using service account credential.");
         return getServiceAccountCredentialBuilder(serviceAccount)
             .setServiceAccountPrivateKey(privateKey)
             .build();

api/src/main/java/com/google/appengine/api/datastore/CompositeIndexManager.java

@@ -145,12 +145,7 @@ protected String generateXmlForIndex(Index index, IndexSource source) {
 
   /** We compare {@link Property Properties} by comparing their names. */
   private static final Comparator<Property> PROPERTY_NAME_COMPARATOR =
-      new Comparator<Property>() {
-        @Override
-        public int compare(Property o1, Property o2) {
-          return o1.getName().compareTo(o2.getName());
-        }
-      };
+      (o1, o2) -> o1.getName().compareTo(o2.getName());
 
   private List<Property> getRecommendedIndexProps(IndexComponentsOnlyQuery query) {
     // Construct the list of index properties

api/src/main/java/com/google/appengine/api/datastore/DataTypeTranslator.java

@@ -1113,7 +1113,6 @@ public RawValue getValue(Value propertyValue) {
     }
 
     @Override
- @  SuppressWarnings("PatternMatchingInstanceof") 
     public @Nullable Comparable<?> asComparable(Object value) {
       Object value2 = ((RawValue) value).getValue();
       // All possible values except byte[] are already comparable.
@@ -2027,10 +2026,7 @@ public int compareTo(ComparableByteArray other) {
 
     @Override
     public boolean equals(@Nullable Object obj) {
-      if (obj == null) {
-        return false;
-      }
-      return Arrays.equals(bytes, ((ComparableByteArray) obj).bytes);
+      return obj instanceof ComparableByteArray other && Arrays.equals(bytes, other.bytes);
     }
 
     @Override

api/src/main/java/com/google/appengine/api/datastore/DatastoreApiHelper.java

@@ -63,59 +63,41 @@ public static RuntimeException translateError(ApiProxy.ApplicationException exce
     if (errorCode == null) {
       return new DatastoreFailureException(exception.getErrorDetail());
     }
-    switch (errorCode) {
-      case BAD_REQUEST:
-        return new IllegalArgumentException(exception.getErrorDetail());
-
-      case CONCURRENT_TRANSACTION:
-        return new ConcurrentModificationException(exception.getErrorDetail());
-
-      case NEED_INDEX:
-        return new DatastoreNeedIndexException(exception.getErrorDetail());
-
-      case TIMEOUT:
-      case BIGTABLE_ERROR:
-        return new DatastoreTimeoutException(exception.getErrorDetail());
-
-      case COMMITTED_BUT_STILL_APPLYING:
-        return new CommittedButStillApplyingException(exception.getErrorDetail());
-
-      case RESOURCE_EXHAUSTED:
-        return new ApiProxy.OverQuotaException(exception.getErrorDetail(), (Throwable) null);
-
-      case INTERNAL_ERROR:
-      default:
-        return new DatastoreFailureException(exception.getErrorDetail());
-    }
+    return switch (errorCode) {
+      case BAD_REQUEST -> new IllegalArgumentException(exception.getErrorDetail());
+      case CONCURRENT_TRANSACTION -> new ConcurrentModificationException(exception.getErrorDetail());
+      case NEED_INDEX -> new DatastoreNeedIndexException(exception.getErrorDetail());
+      case TIMEOUT, BIGTABLE_ERROR -> new DatastoreTimeoutException(exception.getErrorDetail());
+      case COMMITTED_BUT_STILL_APPLYING -> new CommittedButStillApplyingException(
+          exception.getErrorDetail());
+      case RESOURCE_EXHAUSTED -> new ApiProxy.OverQuotaException(
+          exception.getErrorDetail(), (Throwable) null);
+      default -> new DatastoreFailureException(exception.getErrorDetail());
+    };
   }
 
   static RuntimeException createV1Exception(Code code, String message, Throwable cause) {
     if (code == null) {
       return new DatastoreFailureException(message, cause);
     }
-    switch (code) {
-      case ABORTED:
-        return new ConcurrentModificationException(message, cause);
-      case FAILED_PRECONDITION:
+    return switch (code) {
+      case ABORTED -> new ConcurrentModificationException(message, cause);
+      case FAILED_PRECONDITION -> {
         if (message.contains("The Cloud Datastore API is not enabled for the project")) {
-          return new DatastoreFailureException(message, cause);
+          yield new DatastoreFailureException(message, cause);
         }
         // Could also indicate ErrorCode.SAFE_TIME_TOO_OLD.
-        return new DatastoreNeedIndexException(message, cause);
-      case DEADLINE_EXCEEDED:
-        return new DatastoreTimeoutException(message, cause);
-      case INVALID_ARGUMENT:
-      case PERMISSION_DENIED:
-        return new IllegalArgumentException(message, cause);
-      case UNAVAILABLE:
-        return new ApiProxy.RPCFailedException(message, cause);
-      case RESOURCE_EXHAUSTED:
-        return new ApiProxy.OverQuotaException(message, cause);
-      case INTERNAL:
-        // Could also indicate ErrorCode.COMMITTED_BUT_STILL_APPLYING.
-      default:
-        return new DatastoreFailureException(message, cause);
-    }
+        yield new DatastoreNeedIndexException(message, cause);
+      }
+      case DEADLINE_EXCEEDED -> new DatastoreTimeoutException(message, cause);
+      case INVALID_ARGUMENT, PERMISSION_DENIED -> new IllegalArgumentException(message, cause);
+      case UNAVAILABLE -> new ApiProxy.RPCFailedException(message, cause);
+      case RESOURCE_EXHAUSTED -> new ApiProxy.OverQuotaException(message, cause);
+      case INTERNAL ->
+          // Could also indicate ErrorCode.COMMITTED_BUT_STILL_APPLYING.
+          new DatastoreFailureException(message, cause);
+      default -> new DatastoreFailureException(message, cause);
+    };
   }
 
   static <T extends Message, S extends Message.Builder> Future<T> makeAsyncCall(
@@ -162,8 +144,8 @@ protected T wrap(byte[] responseBytes) throws InvalidProtocolBufferException {
 
       @Override
       protected Throwable convertException(Throwable cause) {
-        if (cause instanceof ApiProxy.ApplicationException) {
-          return translateError((ApiProxy.ApplicationException) cause);
+        if (cause instanceof ApiProxy.ApplicationException applicationException) {
+          return translateError(applicationException);
         }
         return cause;
       }