4.x: Use System.Logger instead of JUL where applicable #7792

Signed-off-by: Jorge Bescos Gascon <jorge.bescos.gascon@oracle.com>

common/common/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,9 +19,6 @@
  */
 module io.helidon.common {
 
-    // used only by LogConfig
-    requires java.logging;
-
     exports io.helidon.common;
 
 }

common/configurable/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2018, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@
     requires io.helidon.builder.api;
     requires io.helidon.common.context;
     requires java.management;
+    requires java.logging;
 
     requires transitive io.helidon.common.config;
     requires transitive io.helidon.common;

config/etcd/src/main/java/io/helidon/config/etcd/EtcdConfigSource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2022 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,8 +22,6 @@
 import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Optional;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 import io.helidon.common.media.type.MediaType;
 import io.helidon.common.media.type.MediaTypes;
@@ -51,7 +49,7 @@
 public class EtcdConfigSource extends AbstractConfigSource
         implements PollableSource<Long>, WatchableSource<EtcdEndpoint>, ParsableSource {
 
-    private static final Logger LOGGER = Logger.getLogger(EtcdConfigSource.class.getName());
+    private static final System.Logger LOGGER = System.getLogger(EtcdConfigSource.class.getName());
 
     private final EtcdEndpoint endpoint;
     private final List<EtcdEndpoint> endpoints;
@@ -119,7 +117,7 @@ public Optional<Content> load() throws ConfigException {
         try {
             content = etcdClient().get(endpoint.key());
         } catch (EtcdClientException e) {
-            LOGGER.log(Level.FINEST, "Get operation threw an exception.", e);
+            LOGGER.log(System.Logger.Level.TRACE, "Get operation threw an exception.", e);
             throw new ConfigException(String.format("Could not get data for key '%s'", endpoint.key()), e);
         }
 

config/etcd/src/main/java/io/helidon/config/etcd/EtcdWatcher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2020 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,8 +19,6 @@
 import java.util.concurrent.Flow;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Consumer;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 import io.helidon.config.Config;
 import io.helidon.config.etcd.EtcdConfigSourceBuilder.EtcdEndpoint;
@@ -34,7 +32,7 @@
  */
 public class EtcdWatcher implements ChangeWatcher<EtcdEndpoint> {
 
-    private static final Logger LOGGER = Logger.getLogger(EtcdWatcher.class.getName());
+    private static final System.Logger LOGGER = System.getLogger(EtcdWatcher.class.getName());
 
     private final AtomicBoolean started = new AtomicBoolean();
 
@@ -80,7 +78,7 @@ public void start(EtcdEndpoint endpoint, Consumer<ChangeEvent<EtcdEndpoint>> lis
             Flow.Publisher<Long> watchPublisher = etcdClient().watch(endpoint.key());
             watchPublisher.subscribe(new EtcdWatchSubscriber(listener, endpoint));
         } catch (EtcdClientException ex) {
-            LOGGER.log(Level.WARNING, String.format("Subscription on watching on '%s' key has failed. "
+            LOGGER.log(System.Logger.Level.WARNING, String.format("Subscription on watching on '%s' key has failed. "
                                                             + "Watching by '%s' polling strategy will not start.",
                                                     EtcdWatcher.this.endpoint.key(),
                                                     EtcdWatcher.this), ex);
@@ -96,7 +94,7 @@ public void stop() {
         try {
             this.etcdClient.close();
         } catch (EtcdClientException e) {
-            LOGGER.log(Level.FINE, "Faield to close etcd client", e);
+            LOGGER.log(System.Logger.Level.TRACE, "Faield to close etcd client", e);
         }
     }
 
@@ -142,7 +140,7 @@ public void onNext(Long item) {
 
         @Override
         public void onError(Throwable throwable) {
-            LOGGER.log(Level.WARNING,
+            LOGGER.log(System.Logger.Level.WARNING,
                             String.format(
                                     "Watching on '%s' key has failed. Watching will not continue. ",
                                     endpoint.key()),

config/etcd/src/main/java/io/helidon/config/etcd/internal/client/v2/EtcdV2Client.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,8 +25,6 @@
 import java.util.concurrent.SubmissionPublisher;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 import io.helidon.config.etcd.internal.client.EtcdClient;
 import io.helidon.config.etcd.internal.client.EtcdClientException;
@@ -45,7 +43,7 @@
 
 public class EtcdV2Client implements EtcdClient {
 
-    private static final Logger LOGGER = Logger.getLogger(EtcdV2Client.class.getName());
+    private static final System.Logger LOGGER = System.getLogger(EtcdV2Client.class.getName());
 
     private final Map<String, SubmissionPublisher<Long>> publishers = new ConcurrentHashMap<>();
     private final mousio.etcd4j.EtcdClient etcd;
@@ -150,7 +148,7 @@ public void onResponse(ResponsePromise<EtcdKeysResponse> responsePromise) {
                 publisher.submit(modifiedIndex);
                 waitForChange(modifiedIndex + 1);
             } catch (Exception e) {
-                LOGGER.log(Level.CONFIG, "Cannot read changed value.", e);
+                LOGGER.log(System.Logger.Level.INFO, "Cannot read changed value.", e);
             }
 
         }

config/etcd/src/main/java/io/helidon/config/etcd/internal/client/v3/EtcdV3Client.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2021 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,8 +23,6 @@
 import java.util.concurrent.Flow;
 import java.util.concurrent.SubmissionPublisher;
 import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 import io.helidon.config.etcd.internal.client.EtcdClient;
 import io.helidon.config.etcd.internal.client.EtcdClientException;
@@ -48,7 +46,7 @@
  */
 public class EtcdV3Client implements EtcdClient {
 
-    private static final Logger LOGGER = Logger.getLogger(EtcdV3Client.class.getName());
+    private static final System.Logger LOGGER = System.getLogger(EtcdV3Client.class.getName());
 
     private final Map<String, SubmissionPublisher<Long>> publishers = new ConcurrentHashMap<>();
 
@@ -148,7 +146,7 @@ public void close() throws EtcdClientException {
             try {
                 channel.awaitTermination(1, TimeUnit.SECONDS);
             } catch (InterruptedException e) {
-                LOGGER.log(Level.CONFIG, "Error closing gRPC channel, reason: " + e.getLocalizedMessage(), e);
+                LOGGER.log(System.Logger.Level.INFO, "Error closing gRPC channel, reason: " + e.getLocalizedMessage(), e);
             } finally {
                 channel.shutdown();
             }

config/etcd/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@
     requires io.grpc.stub;
     requires io.helidon.common.media.type;
     requires io.helidon.common;
-    requires java.logging;
+
 
     requires static java.annotation;
 

config/hocon/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@
 module io.helidon.config.hocon {
 
     requires io.helidon.common;
-    requires java.logging;
+
     requires typesafe.config;
 
     requires static io.helidon.common.features.api;

config/yaml/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2017, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@
 module io.helidon.config.yaml {
 
     requires io.helidon.common;
-    requires java.logging;
+
     requires org.yaml.snakeyaml;
 
     requires static io.helidon.common.features.api;

cors/src/main/java/io/helidon/cors/Aggregator.java

@@ -20,7 +20,6 @@
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Supplier;
-import java.util.logging.Logger;
 
 import io.helidon.common.config.Config;
 import io.helidon.common.config.ConfigValue;
@@ -53,7 +52,7 @@ public class Aggregator {
      */
     public static final String PATHLESS_KEY = "{+}";
 
-    private static final Logger LOGGER = Logger.getLogger(Aggregator.class.getName());
+    private static final System.Logger LOGGER = System.getLogger(Aggregator.class.getName());
 
     // Records paths and configs added via addCrossOriginConfig
     private final List<CrossOriginConfigMatchable> crossOriginConfigMatchables = new ArrayList<>();

cors/src/main/java/io/helidon/cors/CorsSupportHelper.java

@@ -26,7 +26,6 @@
 import java.util.StringTokenizer;
 import java.util.function.BiFunction;
 import java.util.function.Supplier;
-import java.util.logging.Logger;
 
 import io.helidon.common.config.Config;
 import io.helidon.common.uri.UriInfo;
@@ -59,7 +58,7 @@ public class CorsSupportHelper<Q, R> {
     static final String METHOD_NOT_IN_ALLOWED_LIST = "CORS method is not in allowed list";
     static final String HEADERS_NOT_IN_ALLOWED_LIST = "CORS headers not in allowed list";
 
-    static final Logger LOGGER = Logger.getLogger(CorsSupportHelper.class.getName());
+    static final System.Logger LOGGER = System.getLogger(CorsSupportHelper.class.getName());
 
     static final String OPAQUE_ORIGIN = "null"; // browsers might send this as Origin header if origin info is untrusted
 
@@ -240,7 +239,8 @@ public CorsSupportHelper<Q, R> build() {
 
             CorsSupportHelper<Q, R>  result = new CorsSupportHelper<>(this);
 
-            LOGGER.config(() -> String.format("CorsSupportHelper configured as: %s", result.toString()));
+            LOGGER.log(System.Logger.Level.INFO,
+                    () -> String.format("CorsSupportHelper configured as: %s", result.toString()));
 
             return result;
         }

cors/src/main/java/io/helidon/cors/LogHelper.java

@@ -25,8 +25,6 @@
 import java.util.StringJoiner;
 import java.util.function.BiConsumer;
 import java.util.function.Function;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 import java.util.stream.Collectors;
 
 import io.helidon.cors.CorsSupportHelper.RequestType;
@@ -36,8 +34,8 @@
 
 class LogHelper {
 
-    static final Level DECISION_LEVEL = Level.FINE;
-    static final Level DETAILED_DECISION_LEVEL = Level.FINER;
+    static final System.Logger.Level DECISION_LEVEL = System.Logger.Level.TRACE;
+    static final System.Logger.Level DETAILED_DECISION_LEVEL = System.Logger.Level.TRACE;
 
     private LogHelper() {
     }
@@ -177,11 +175,11 @@ static <T> void logInferRequestType(RequestType result,
 
     static class MatcherChecks<T> {
         private final Map<CrossOriginConfig, MatcherCheck> checks;
-        private final Logger logger;
+        private final System.Logger logger;
         private final boolean isLoggable;
         private final Function<T, CrossOriginConfig> getter;
 
-        MatcherChecks(Logger logger, Function<T, CrossOriginConfig> getter) {
+        MatcherChecks(System.Logger logger, Function<T, CrossOriginConfig> getter) {
             this.logger = logger;
             isLoggable = logger.isLoggable(DETAILED_DECISION_LEVEL);
             this.getter = getter;

cors/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2022, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,7 +19,7 @@
  */
 module io.helidon.cors {
 
-    requires java.logging;
+
     requires io.helidon.http;
     requires io.helidon.common.config;
 

dbclient/dbclient/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2019, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,7 +31,7 @@
 )
 module io.helidon.dbclient {
 
-    requires java.logging;
+
     requires java.sql;
 
     requires static io.helidon.common.features.api;

dbclient/jsonp/src/main/java/module-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019, 2023 Oracle and/or its affiliates.
+ * Copyright (c) 2019, 2024 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@
 
     requires io.helidon.dbclient;
     requires jakarta.json;
-    requires java.logging;
+
     requires static io.helidon.common.features.api;
 
     exports io.helidon.dbclient.jsonp;

helidon/src/main/java/module-info.java

@@ -21,6 +21,7 @@
     // this is required due to a bug in JDK (see Main for details and link)
     requires java.logging;
 
+
     requires io.helidon.common;
     requires io.helidon.logging.common;