Remove GraalVM debug flags

google-cloud-graalvm-samples/graalvm-samples-quarkus/pom.xml

@@ -25,6 +25,13 @@
 
   <dependencyManagement>
     <dependencies>
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>libraries-bom</artifactId>
+        <version>${libraries.bom.version}</version>
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
       <dependency>
         <groupId>io.quarkus</groupId>
         <artifactId>quarkus-universe-bom</artifactId>

google-cloud-graalvm-support/pom.xml

@@ -18,5 +18,12 @@
       <version>${graalvm.version}</version>
       <scope>provided</scope>
     </dependency>
+
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-netty-shaded</artifactId>
+      <version>${grpc.netty.version}</version>
+      <scope>provided</scope>
+    </dependency>
   </dependencies>
 </project>

google-cloud-graalvm-support/src/main/java/com/google/cloud/graalvm/features/substitutions/NettyInternalLoggerFactorySubstitutions.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright 2020-2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.graalvm.features.substitutions;
+
+import com.oracle.svm.core.annotate.Substitute;
+import com.oracle.svm.core.annotate.TargetClass;
+import io.grpc.netty.shaded.io.netty.util.internal.logging.InternalLoggerFactory;
+import io.grpc.netty.shaded.io.netty.util.internal.logging.JdkLoggerFactory;
+import java.util.function.BooleanSupplier;
+
+/**
+ * Substitutions for {@link InternalLoggerFactory} which are needed to avoid dynamic loading
+ * of logging library.
+ */
+@TargetClass(
+    className = "io.grpc.netty.shaded.io.netty.util.internal.logging.InternalLoggerFactory",
+    onlyWith = NettyInternalLoggerFactorySubstitutions.OnlyIfInClassPath.class
+)
+final class NettyInternalLoggerFactorySubstitutions {
+
+  @Substitute
+  private static InternalLoggerFactory newDefaultFactory(String name) {
+    return JdkLoggerFactory.INSTANCE;
+  }
+
+  static class OnlyIfInClassPath implements BooleanSupplier {
+
+    @Override
+    public boolean getAsBoolean() {
+      try {
+        // Note: Set initialize = false to avoid initializing the class when looking it up.
+        Class.forName(
+            "io.grpc.netty.shaded.io.netty.util.internal.logging.InternalLoggerFactory",
+            false,
+            Thread.currentThread().getContextClassLoader());
+        return true;
+      } catch (ClassNotFoundException e) {
+        return false;
+      }
+    }
+  }
+}

google-cloud-graalvm-support/src/main/resources/META-INF/native-image/com.google.cloud/google-cloud-graalvm-support/native-image.properties

@@ -1,8 +1,13 @@
-Args = -H:+AllowIncompleteClasspath --report-unsupported-elements-at-runtime \
+Args = --allow-incomplete-classpath \
 --initialize-at-build-time=org.conscrypt \
 --initialize-at-run-time=io.grpc.netty.shaded.io.netty.handler.ssl.OpenSsl,\
     io.grpc.netty.shaded.io.netty.handler.ssl.OpenSslContext,\
     io.grpc.netty.shaded.io.netty.handler.ssl.ReferenceCountedOpenSslEngine,\
+    io.grpc.netty.shaded.io.netty.handler.ssl.JdkNpnApplicationProtocolNegotiator,\
+    io.grpc.netty.shaded.io.netty.handler.ssl.JettyAlpnSslEngine,\
+    io.grpc.netty.shaded.io.netty.handler.ssl.JettyAlpnSslEngine$ClientEngine,\
+    io.grpc.netty.shaded.io.netty.handler.ssl.JettyAlpnSslEngine$ServerEngine,\
+    io.grpc.netty.shaded.io.netty.handler.ssl.JettyNpnSslEngine,\
     io.grpc.netty.shaded.io.netty.internal.tcnative.SSL,\
     io.grpc.netty.shaded.io.netty.internal.tcnative.CertificateVerifier,\
     io.grpc.netty.shaded.io.netty.internal.tcnative.SSLPrivateKeyMethod,\

pom.xml

@@ -8,6 +8,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <graalvm.version>21.2.0</graalvm.version>
+    <grpc.netty.version>1.39.0</grpc.netty.version>
   </properties>
 
   <name>Google Cloud GraalVM Support Parent</name>