Program: 75068
Project: 75068
Buggy source:
public void startPage(IPageContent page){
  pageNo++;
  if (pageNo > 1 && outputMasterPageContent == false) {
    writer.openTag("String_Node_Str");
    writer.closeTag("String_Node_Str");
  }
  writer.openTag(HTMLTags.TAG_DIV);
  if (page != null) {
    StringBuffer styleBuffer=new StringBuffer();
    if (pageNo > 1) {
      styleBuffer.append("String_Node_Str");
    }
    boolean fixedReport=HTMLRenderOption.LAYOUT_PREFERENCE_FIXED.equals(layoutPreference);
    if (fixedReport || outputMasterPageContent) {
      htmlEmitter.buildPageStyle(page,styleBuffer);
    }
    writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
    writer.openTag(HTMLTags.TAG_TABLE);
    styleBuffer.setLength(0);
    styleBuffer.append("String_Node_Str");
    boolean outputPageHeight=fixedReport || (outputMasterPageContent && !pageFooterFloatFlag);
    if (outputPageHeight) {
      htmlEmitter.buildSize(styleBuffer,HTMLTags.ATTR_HEIGHT,page.getPageHeight());
    }
    if (fixedReport) {
      styleBuffer.append("String_Node_Str");
    }
    writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
    boolean implementMargins=fixedReport || (outputMasterPageContent && outputMasterPageMargins);
    if (implementMargins) {
      writer.openTag(HTMLTags.TAG_COL);
      styleBuffer.setLength(0);
      styleBuffer.append("String_Node_Str");
      DimensionType leftMargin=page.getMarginLeft();
      if (null != leftMargin) {
        styleBuffer.append(leftMargin.toString());
      }
 else {
        styleBuffer.append("String_Node_Str");
      }
      styleBuffer.append("String_Node_Str");
      writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
      writer.closeNoEndTag();
      writer.openTag(HTMLTags.TAG_COL);
      writer.closeNoEndTag();
      writer.openTag(HTMLTags.TAG_COL);
      styleBuffer.setLength(0);
      styleBuffer.append("String_Node_Str");
      DimensionType rightMargin=page.getMarginRight();
      if (null != rightMargin) {
        styleBuffer.append(rightMargin.toString());
      }
 else {
        styleBuffer.append("String_Node_Str");
      }
      styleBuffer.append("String_Node_Str");
      writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
      writer.closeNoEndTag();
      DimensionType topMargin=page.getMarginTop();
      if (null != topMargin) {
        writer.openTag(HTMLTags.TAG_TR);
        styleBuffer.setLength(0);
        styleBuffer.append("String_Node_Str");
        styleBuffer.append(topMargin.toString());
        styleBuffer.append("String_Node_Str");
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        writer.openTag(HTMLTags.TAG_TD);
        writer.attribute(HTMLTags.ATTR_COLSPAN,3);
        writer.closeTag(HTMLTags.TAG_TD);
        writer.closeTag(HTMLTags.TAG_TR);
      }
    }
    writer.openTag(HTMLTags.TAG_TR);
    if (implementMargins) {
      writer.openTag(HTMLTags.TAG_TD);
      writer.attribute(HTMLTags.ATTR_ROWSPAN,3);
      DimensionType leftMargin=page.getMarginLeft();
      if (null != leftMargin) {
        writer.openTag(HTMLTags.TAG_DIV);
        styleBuffer.setLength(0);
        styleBuffer.append("String_Node_Str");
        styleBuffer.append(leftMargin.toString());
        styleBuffer.append("String_Node_Str");
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        writer.closeTag(HTMLTags.TAG_DIV);
      }
      writer.closeTag(HTMLTags.TAG_TD);
    }
    writer.openTag(HTMLTags.TAG_TD);
    if (fixedReport) {
      writer.attribute(HTMLTags.ATTR_STYLE,"String_Node_Str");
    }
    writer.attribute(HTMLTags.ATTR_VALIGN,"String_Node_Str");
    if (htmlRtLFlag) {
      writer.attribute(HTMLTags.ATTR_HTML_DIR,"String_Node_Str");
    }
    if (page != null) {
      if (outputMasterPageContent) {
        boolean showHeader=true;
        Object genBy=page.getGenerateBy();
        if (genBy instanceof SimpleMasterPageDesign) {
          SimpleMasterPageDesign masterPage=(SimpleMasterPageDesign)genBy;
          if (!masterPage.isShowHeaderOnFirst()) {
            if (page.getPageNumber() == 1) {
              showHeader=false;
            }
          }
        }
        if (showHeader) {
          writer.openTag(HTMLTags.TAG_DIV);
          styleBuffer.setLength(0);
          htmlEmitter.buildPageBandStyle(styleBuffer,page.getStyle());
          writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
          contentVisitor.visitChildren(page.getPageHeader(),null);
          writer.closeTag(HTMLTags.TAG_DIV);
        }
      }
    }
    writer.closeTag(HTMLTags.TAG_TD);
    if (implementMargins) {
      writer.openTag(HTMLTags.TAG_TD);
      writer.attribute(HTMLTags.ATTR_ROWSPAN,3);
      DimensionType rightMargin=page.getMarginRight();
      if (null != rightMargin) {
        writer.openTag(HTMLTags.TAG_DIV);
        styleBuffer.setLength(0);
        styleBuffer.append("String_Node_Str");
        styleBuffer.append(rightMargin.toString());
        styleBuffer.append("String_Node_Str");
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        writer.closeTag(HTMLTags.TAG_DIV);
      }
      writer.closeTag(HTMLTags.TAG_TD);
    }
    writer.closeTag(HTMLTags.TAG_TR);
    writer.openTag(HTMLTags.TAG_TR);
    if (outputPageHeight && !pageFooterFloatFlag) {
      writer.attribute(HTMLTags.ATTR_STYLE,"String_Node_Str");
    }
    writer.openTag(HTMLTags.TAG_TD);
    if (fixedReport) {
      writer.attribute(HTMLTags.ATTR_STYLE,"String_Node_Str");
    }
    writer.attribute(HTMLTags.ATTR_VALIGN,"String_Node_Str");
    if (htmlRtLFlag) {
      writer.attribute(HTMLTags.ATTR_HTML_DIR,"String_Node_Str");
    }
  }
  writer.openTag(HTMLTags.TAG_DIV);
}

Fixed version (ground truth):
public void startPage(IPageContent page){
  pageNo++;
  if (pageNo > 1 && outputMasterPageContent == false) {
    writer.openTag("String_Node_Str");
    writer.closeTag("String_Node_Str");
  }
  writer.openTag(HTMLTags.TAG_DIV);
  if (page != null) {
    StringBuffer styleBuffer=new StringBuffer();
    if (pageNo > 1) {
      styleBuffer.append("String_Node_Str");
    }
    boolean fixedReport=HTMLRenderOption.LAYOUT_PREFERENCE_FIXED.equals(layoutPreference);
    if (fixedReport || outputMasterPageContent) {
      htmlEmitter.buildPageStyle(page,styleBuffer);
    }
    writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
    writer.openTag(HTMLTags.TAG_TABLE);
    writer.attribute("String_Node_Str","String_Node_Str");
    styleBuffer.setLength(0);
    styleBuffer.append("String_Node_Str");
    boolean outputPageHeight=fixedReport || (outputMasterPageContent && !pageFooterFloatFlag);
    if (outputPageHeight) {
      htmlEmitter.buildSize(styleBuffer,HTMLTags.ATTR_HEIGHT,page.getPageHeight());
    }
    if (fixedReport) {
      styleBuffer.append("String_Node_Str");
    }
    writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
    boolean implementMargins=fixedReport || (outputMasterPageContent && outputMasterPageMargins);
    if (implementMargins) {
      writer.openTag(HTMLTags.TAG_COL);
      styleBuffer.setLength(0);
      styleBuffer.append("String_Node_Str");
      DimensionType leftMargin=page.getMarginLeft();
      if (null != leftMargin) {
        styleBuffer.append(leftMargin.toString());
      }
 else {
        styleBuffer.append("String_Node_Str");
      }
      styleBuffer.append("String_Node_Str");
      writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
      writer.closeNoEndTag();
      writer.openTag(HTMLTags.TAG_COL);
      writer.closeNoEndTag();
      writer.openTag(HTMLTags.TAG_COL);
      styleBuffer.setLength(0);
      styleBuffer.append("String_Node_Str");
      DimensionType rightMargin=page.getMarginRight();
      if (null != rightMargin) {
        styleBuffer.append(rightMargin.toString());
      }
 else {
        styleBuffer.append("String_Node_Str");
      }
      styleBuffer.append("String_Node_Str");
      writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
      writer.closeNoEndTag();
      DimensionType topMargin=page.getMarginTop();
      if (null != topMargin) {
        writer.openTag(HTMLTags.TAG_TR);
        styleBuffer.setLength(0);
        styleBuffer.append("String_Node_Str");
        styleBuffer.append(topMargin.toString());
        styleBuffer.append("String_Node_Str");
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        writer.openTag(HTMLTags.TAG_TD);
        writer.attribute(HTMLTags.ATTR_COLSPAN,3);
        writer.closeTag(HTMLTags.TAG_TD);
        writer.closeTag(HTMLTags.TAG_TR);
      }
    }
    writer.openTag(HTMLTags.TAG_TR);
    if (outputPageHeight && !pageFooterFloatFlag) {
      writer.attribute(HTMLTags.ATTR_STYLE,"String_Node_Str");
    }
    if (implementMargins) {
      writer.openTag(HTMLTags.TAG_TD);
      writer.attribute(HTMLTags.ATTR_ROWSPAN,2);
      DimensionType leftMargin=page.getMarginLeft();
      if (null != leftMargin) {
        writer.openTag(HTMLTags.TAG_DIV);
        styleBuffer.setLength(0);
        styleBuffer.append("String_Node_Str");
        styleBuffer.append(leftMargin.toString());
        styleBuffer.append("String_Node_Str");
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        writer.closeTag(HTMLTags.TAG_DIV);
      }
      writer.closeTag(HTMLTags.TAG_TD);
    }
    writer.openTag(HTMLTags.TAG_TD);
    if (fixedReport) {
      writer.attribute(HTMLTags.ATTR_STYLE,"String_Node_Str");
    }
    writer.attribute(HTMLTags.ATTR_VALIGN,"String_Node_Str");
    if (htmlRtLFlag) {
      writer.attribute(HTMLTags.ATTR_HTML_DIR,"String_Node_Str");
    }
    if (outputMasterPageContent) {
      boolean showHeader=true;
      Object genBy=page.getGenerateBy();
      if (genBy instanceof SimpleMasterPageDesign) {
        SimpleMasterPageDesign masterPage=(SimpleMasterPageDesign)genBy;
        if (!masterPage.isShowHeaderOnFirst()) {
          if (page.getPageNumber() == 1) {
            showHeader=false;
          }
        }
      }
      if (showHeader) {
        writer.openTag(HTMLTags.TAG_DIV);
        styleBuffer.setLength(0);
        htmlEmitter.buildPageBandStyle(styleBuffer,page.getStyle());
        writer.attribute(HTMLTags.ATTR_STYLE,styleBuffer.toString());
        contentVisitor.visitChildren(page.getPageHeader(),null);
        writer.closeTag(HTMLTags.TAG_DIV);
      }
    }
  }
  writer.openTag(HTMLTags.TAG_DIV);
}