Fixes #34 with some unsafe magic

Author: dpisklov

compiler/src/main/java/net/openhft/compiler/CompilerUtils.java

@@ -22,12 +22,15 @@
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import sun.misc.Unsafe;
 
 import javax.tools.JavaCompiler;
 import javax.tools.StandardJavaFileManager;
 import javax.tools.ToolProvider;
 import java.io.*;
 import java.lang.management.ManagementFactory;
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.nio.charset.Charset;
@@ -50,9 +53,14 @@ public enum CompilerUtils {
 
     static {
         try {
+            Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
+            theUnsafe.setAccessible(true);
+            Unsafe u = (Unsafe) theUnsafe.get(null);
             DEFINE_CLASS_METHOD = ClassLoader.class.getDeclaredMethod("defineClass", String.class, byte[].class, int.class, int.class);
-            DEFINE_CLASS_METHOD.setAccessible(true);
-        } catch (NoSuchMethodException e) {
+            Field f = AccessibleObject.class.getDeclaredField("override");
+            long offset = u.objectFieldOffset(f);
+            u.putBoolean(DEFINE_CLASS_METHOD, offset, true);
+        } catch (NoSuchMethodException | IllegalAccessException | NoSuchFieldException e) {
             throw new AssertionError(e);
         }
     }

pom.xml

@@ -19,8 +19,8 @@
 
     <parent>
         <groupId>net.openhft</groupId>
-        <artifactId>root-parent-pom</artifactId>
-        <version>1.1.12</version>
+        <artifactId>java-parent-pom</artifactId>
+        <version>1.1.16</version>
         <relativePath />
     </parent>