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 package org.dynjs.runtime;
 
 import java.util.List;
 
 public class ThreadContextManager {
     
     private static ThreadLocal<List<ExecutionContext>> threadContext = new ThreadLocal<>();
     
    public static ExecutionContext currentContext() {
        List<ExecutionContextcurrentList = .get();
        if ( currentList == null || currentList.isEmpty() ) {
            return null;
        }
        
        return currentList.get(0);
    }
    
    public static void pushContext(ExecutionContext context) {
        List<ExecutionContextcurrentList = .get();
        if ( currentList == null ) {
            currentList = new ArrayList<>();
            .set(currentList);
        }
        currentList.add(context);
    }
    
    public static void popContext() {
        List<ExecutionContextcurrentList = .get();
        if ( currentList == null ) {
            throw new IllegalStateException"Cannot pop ExecutionContext from empty stack" );
        }
        currentList.removecurrentList.size() - 1 );
        
        //if ( currentList.isEmpty() ) {
            //threadContext.remove();
        //}
    }
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