Program: 17403
Project: 17403
Buggy source:
/** 
 * @param varName
 * @param state
 * @param doc
 * @return
 */
public ICompletionProposal[] getArguments(String varName,IAssistState state,ICFDocument doc){
  CFParser parser=new CFParser();
  CFDocument cfdoc=parser.parseDoc(state.getIDocument().get());
  HashMap varMap=cfdoc.getVariableMap();
  ICompletionProposal[] proposals=null;
  Set scopeProposals=null;
  Object chosenTag=varMap.get(varName);
  boolean isScope=false;
  if (chosenTag != null) {
    if (chosenTag instanceof TagItem) {
      TagItem leTag=(TagItem)chosenTag;
      String tagname=leTag.getName();
      if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        if (varName.equalsIgnoreCase(leTag.getAttributeValue("String_Node_Str"))) {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
 else {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
          int sqlStart=leTag.getEndPosition() + 1;
          int sqlEnd=leTag.getMatchingItem().getStartPosition();
          String docText=doc.get();
          String sql=docText.substring(sqlStart,sqlEnd);
          scopeProposals.addAll(parseSQL(sql));
        }
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        if (varName.equalsIgnoreCase(leTag.getAttributeValue("String_Node_Str"))) {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
 else {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
    }
  }
 else {
    isScope=true;
    Set formScopes=new HashSet();
    Iterator hashIter=varMap.keySet().iterator();
    while (hashIter.hasNext()) {
      Object keyObj=hashIter.next();
      String key=(String)keyObj;
      if (key.toUpperCase().startsWith(varName.toUpperCase())) {
        formScopes.add(key);
      }
    }
    scopeProposals=formScopes;
  }
  if (scopeProposals != null) {
    proposals=new ICompletionProposal[scopeProposals.size()];
    Iterator scopeIter=scopeProposals.iterator();
    int scopeCounter=0;
    while (scopeIter.hasNext()) {
      Object scopeKey=scopeIter.next();
      String scopeItem=scopeKey.toString();
      CompletionProposal proposal=null;
      if (scopeKey instanceof ScopeVar) {
        ScopeVar sVar=(ScopeVar)scopeKey;
        scopeItem=scopeItem.substring(scopeItem.indexOf("String_Node_Str") + 1,scopeItem.length());
        proposal=new CompletionProposal(scopeItem.toString(),state.getOffset(),0,scopeItem.toString().length(),CFPluginImages.get(CFPluginImages.ICON_VALUE),scopeItem.toString(),null,sVar.getHelp());
      }
 else {
        proposal=new CompletionProposal(scopeItem.toString(),state.getOffset(),0,scopeItem.toString().length());
      }
      proposals[scopeCounter]=proposal;
      scopeCounter++;
    }
  }
  return proposals;
}

Fixed version (ground truth):
/** 
 * @param varName
 * @param state
 * @param doc
 * @return
 */
public ICompletionProposal[] getArguments(String varName,IAssistState state,ICFDocument doc){
  CFParser parser=new CFParser();
  CFDocument cfdoc=parser.parseDoc(state.getIDocument().get());
  HashMap varMap=cfdoc.getVariableMap();
  ICompletionProposal[] proposals=null;
  Set scopeProposals=null;
  Object chosenTag=varMap.get(varName);
  boolean isScope=false;
  if (chosenTag != null) {
    if (chosenTag instanceof TagItem) {
      TagItem leTag=(TagItem)chosenTag;
      String tagname=leTag.getName();
      if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        if (varName.equalsIgnoreCase(leTag.getAttributeValue("String_Node_Str"))) {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
 else {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
          int sqlStart=leTag.getEndPosition() + 1;
          int sqlEnd=leTag.getMatchingItem().getStartPosition();
          String docText=doc.get();
          String sql=docText.substring(sqlStart,sqlEnd);
          scopeProposals.addAll(parseSQL(sql));
        }
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        if (varName.equalsIgnoreCase(leTag.getAttributeValue("String_Node_Str"))) {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
 else {
          scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
        }
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
 else       if (tagname.equalsIgnoreCase("String_Node_Str")) {
        isScope=true;
        scopeProposals=((ISyntaxDictionary)this.sourceDict).getFilteredScopeVars("String_Node_Str");
      }
    }
  }
 else {
    isScope=true;
    Set formScopes=new HashSet();
    Iterator hashIter=varMap.keySet().iterator();
    while (hashIter.hasNext()) {
      Object keyObj=hashIter.next();
      String key=(String)keyObj;
      if (key.toUpperCase().startsWith(varName.toUpperCase())) {
        formScopes.add(key);
      }
    }
    scopeProposals=formScopes;
  }
  if (scopeProposals != null) {
    proposals=new ICompletionProposal[scopeProposals.size()];
    Iterator scopeIter=scopeProposals.iterator();
    int scopeCounter=0;
    while (scopeIter.hasNext()) {
      Object scopeKey=scopeIter.next();
      String scopeItem=scopeKey.toString();
      CompletionProposal proposal=null;
      if (scopeKey instanceof ScopeVar) {
        ScopeVar sVar=(ScopeVar)scopeKey;
        scopeItem=scopeItem.substring(scopeItem.indexOf("String_Node_Str") + 1,scopeItem.length());
        proposal=new CompletionProposal(scopeItem.toString(),state.getOffset(),0,scopeItem.toString().length(),CFPluginImages.get(CFPluginImages.ICON_VALUE),scopeItem.toString(),null,sVar.getHelp());
      }
 else {
        String replacementString=scopeItem.toString();
        int repItemsPos=scopeItem.toString().indexOf("String_Node_Str");
        String repItems=scopeItem.toString().substring(repItemsPos + 1);
        proposal=new CompletionProposal(repItems,state.getOffset(),0,repItems.length());
      }
      proposals[scopeCounter]=proposal;
      scopeCounter++;
    }
  }
  return proposals;
}