JAVA-18131 Upgrade core-java-modules to JDK 11 (#13462)

* JAVA-18131 Upgrade core-java-modules to JDK 11

* JAVA-18131 Fixed pom conflicts

* JAVA-18131 Upgraded ASM and updated expected test results

* JAVA-18131 Fixed FormatNumberUnitTest and removed core-java-security from upgrading to 17

* JAVA-18131 Removed core-java-sun from upgrading

* JAVA-18131 Removed core-java-jvm-2, fixed number test

* JAVA-18131 Removed core-java-sun from upgrading to 11

* JAVA-18131 Removed all edited submodules from pre-jdk9

* JAVA-18131 removed pre-jpms from pre-jdk9

* JAVA-18131 Removed core-java-numbers-3 from pre-jdk9 profiles

* JAVA-18131 Cleanup

* JAVA-18131 Cleanup 2 - Removed upgraded submodules from core-java-modules

* JAVA-18131 Cleanup completed

* JAVA-18131 Replaced core-java-modules submodules in main pom with core-java-modules

* JAVA-18131 Replaced core-java-modules submodules in main pom, continued

* JAVA-18131 Core-java-nio-2, core-java-serialization back to pre-jdk9

* JAVA-18131 Try removing math-3 from core-java-modules and explicitly refer in parent pom

* JAVA-18131 Removed -lang, -nio, -streams-2, -math-3, -conversions-2 from jdk9 profiles

* JAVA-18131 Corrected conversions-2 module

* JAVA-18131 Review fixes

* JAVA-18131 Fixed -nio, re-upgraded -lang

* JAVA-18131 Adapted -nio for JDK 11, returned -lang to JDK 8

* JAVA-18131 Final corrections

core-java-modules/core-java-jvm-2/pom.xml

@@ -27,9 +27,30 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>${maven.compiler.source}</source>
+                    <target>${maven.compiler.target}</target>
+                    <compilerArgs>
+                        <arg>--add-exports=java.base/jdk.internal.vm.annotation=ALL-UNNAMED</arg>
+                    </compilerArgs>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
     <properties>
         <jol-core.version>0.10</jol-core.version>
         <reflections.version>0.10.2</reflections.version>
+
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
     </properties>
 
+
 </project>

core-java-modules/core-java-jvm-2/src/test/java/com/baeldung/memlayout/MemoryLayoutUnitTest.java

@@ -3,7 +3,8 @@ package com.baeldung.memlayout;
 import org.junit.Test;
 import org.openjdk.jol.info.ClassLayout;
 import org.openjdk.jol.vm.VM;
-import sun.misc.Contended;
+
+import jdk.internal.vm.annotation.Contended;
 
 public class MemoryLayoutUnitTest {