Update to Java 11 & support JPMS

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

@@ -0,0 +1,30 @@
+/*
+ * MinIO Java SDK for Amazon S3 Compatible Cloud Storage, (C) 2020 MinIO, Inc.
+ *
+ * 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
+ *
+ *     http://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.
+ */
+module io.minio.api.admin {
+	requires org.bouncycastle.provider;
+	requires com.google.common;
+	requires com.fasterxml.jackson.annotation;
+	requires jsr305;
+	requires okhttp3;
+	requires com.fasterxml.jackson.databind;
+	requires com.fasterxml.jackson.datatype.jsr310;
+	requires com.github.spotbugs.annotations;
+
+	requires io.minio.api;
+
+	exports io.minio.admin;
+	exports io.minio.admin.messages;
+}

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

@@ -0,0 +1,32 @@
+/*
+ * MinIO Java SDK for Amazon S3 Compatible Cloud Storage, (C) 2020 MinIO, Inc.
+ *
+ * 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
+ *
+ *     http://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.
+ */
+open module io.minio.api {
+	requires okhttp3;
+	requires com.google.common;
+	requires simple.xml.safe;
+	requires jsr305;
+	requires com.fasterxml.jackson.databind;
+	requires com.github.spotbugs.annotations;
+
+	exports io.minio;
+	exports io.minio.credentials;
+	exports io.minio.errors;
+	exports io.minio.http;
+	exports io.minio.messages;
+
+	// TODO - Should this be exported (is this a public facing API)?
+	// exports io.minio.org.apache.commons.validator.routines;
+}

build.gradle

@@ -108,8 +108,8 @@ subprojects {
 
     check.dependsOn localeTest
 
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 
     spotless {
         java {