[Misc] Code style

xwiki-platform-core/xwiki-platform-oldcore/src/main/java/com/xpn/xwiki/util/AbstractXWikiRunnable.java

@@ -94,7 +94,7 @@ protected ExecutionContext initExecutionContext() throws ExecutionContextExcepti
     {
         // Keep a reference to the Execution component to avoid a lookup in #cleanupExecutionContext() in case this
         // thread is stopped after the Component Manager disposes its components.
-        execution = Utils.getComponent(Execution.class);
+        this.execution = Utils.getComponent(Execution.class);
 
         ExecutionContextManager ecim = Utils.getComponent(ExecutionContextManager.class);
         ExecutionContext context = new ExecutionContext();
@@ -112,7 +112,7 @@ protected void cleanupExecutionContext()
     {
         // We must ensure we clean the ThreadLocal variables located in the Execution
         // component as otherwise we will have a potential memory leak.
-        execution.removeContext();
+        this.execution.removeContext();
     }
 
     @Override