Program: 90307
Project: 90307
Buggy source:
@Override public void startElement(String uri,String localName,String qName,Attributes attributes) throws SAXException {
  try {
    if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDER_THEME);
      this.renderTheme=new RenderThemeBuilder(this.graphicFactory,this.displayModel,qName,attributes).build();
    }
 else     if (ELEMENT_NAME_RULE.equals(qName)) {
      checkState(qName,Element.RULE);
      Rule rule=new RuleBuilder(qName,attributes,this.ruleStack).build();
      if (!this.ruleStack.empty()) {
        this.currentRule.addSubRule(rule);
      }
      this.currentRule=rule;
      this.ruleStack.push(this.currentRule);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Area area=new AreaBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(area);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Caption caption=new CaptionBuilder(this.graphicFactory,this.displayModel,qName,attributes).build();
      this.currentRule.addRenderingInstruction(caption);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Circle circle=new CircleBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++).build();
      this.currentRule.addRenderingInstruction(circle);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Line line=new LineBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(line);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      LineSymbol lineSymbol=new LineSymbolBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(lineSymbol);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      PathText pathText=new PathTextBuilder(this.graphicFactory,this.displayModel,qName,attributes).build();
      this.currentRule.addRenderingInstruction(pathText);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Symbol symbol=new SymbolBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(symbol);
    }
 else {
      throw new SAXException("String_Node_Str" + qName);
    }
  }
 catch (  IOException e) {
    LOGGER.warning("String_Node_Str" + e.getMessage());
  }
}

Fixed version (ground truth):
@Override public void startElement(String uri,String localName,String qName,Attributes attributes) throws SAXException {
  try {
    if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDER_THEME);
      this.renderTheme=new RenderThemeBuilder(this.graphicFactory,qName,attributes).build();
    }
 else     if (ELEMENT_NAME_RULE.equals(qName)) {
      checkState(qName,Element.RULE);
      Rule rule=new RuleBuilder(qName,attributes,this.ruleStack).build();
      if (!this.ruleStack.empty()) {
        this.currentRule.addSubRule(rule);
      }
      this.currentRule=rule;
      this.ruleStack.push(this.currentRule);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Area area=new AreaBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(area);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Caption caption=new CaptionBuilder(this.graphicFactory,this.displayModel,qName,attributes).build();
      this.currentRule.addRenderingInstruction(caption);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Circle circle=new CircleBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++).build();
      this.currentRule.addRenderingInstruction(circle);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Line line=new LineBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.level++,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(line);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      LineSymbol lineSymbol=new LineSymbolBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(lineSymbol);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      PathText pathText=new PathTextBuilder(this.graphicFactory,this.displayModel,qName,attributes).build();
      this.currentRule.addRenderingInstruction(pathText);
    }
 else     if ("String_Node_Str".equals(qName)) {
      checkState(qName,Element.RENDERING_INSTRUCTION);
      Symbol symbol=new SymbolBuilder(this.graphicFactory,this.displayModel,qName,attributes,this.relativePathPrefix).build();
      this.currentRule.addRenderingInstruction(symbol);
    }
 else {
      throw new SAXException("String_Node_Str" + qName);
    }
  }
 catch (  IOException e) {
    LOGGER.warning("String_Node_Str" + e.getMessage());
  }
}