[jdt-dev] problem with ASTParser parser = ASTParser.newParser(AST.JLS3);

[zifu yang <zifu.yang@xxxxxxxxx>]

I tested a simple program under Eclipse 3.1.1,

However I got the following error. Can anybody help?

According to the document, the code should run correctly.

 

The error message indicates

 ASTParser parser = ASTParser.newParser(AST.JLS3);

has problem.

 

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/core/resources/IResource
 at org.eclipse.jdt.core.dom.ASTParser.initializeDefaults(ASTParser.java:222)
 at org.eclipse.jdt.core.dom.ASTParser .<init>(ASTParser.java:204)
 at org.eclipse.jdt.core.dom.ASTParser.newParser(ASTParser.java:109)
 at Test.runtest(Test.java:15)
 at Test.main(Test.java:10)

 

 

 

 

Code:

 

import org.eclipse.jdt.core.dom.*;
import org.eclipse.jface.text.Document;
import org.eclipse.text.edits.TextEdit;

public class Test{

public static void main(String[] args){
 Test t= new Test();
 t.runtest();
}
 
 void runtest(){
  Document doc = new Document("import java.util.List;\nclass X {}\n");
  ASTParser parser = ASTParser.newParser(AST.JLS3);
  parser.setResolveBindings(true);
  parser.setSource(doc.get().toCharArray());
  CompilationUnit cu = (CompilationUnit) parser.createAST(null);
  cu.recordModifications();
  AST ast = cu.getAST();
  ImportDeclaration id = ast.newImportDeclaration();
  id.setName(ast.newName(new String[] {"java", "util", "Set"}));
  cu.imports().add(id); // add import declaration at end
  TextEdit edits = cu.rewrite(doc, null);
  //UndoEdit undo = edits.apply(document);
 }
 
}

--
best regards,
Zifu Yang