java - JSPG0122E:无法解析Websphere 8中的EL函数

我正在将Web应用程序从Websphere 6.1迁移到Websphere 8，并且在我的JSP页面之一中遇到以下错误:

com.ibm.ws.jsp.translator.JspTranslationException:JSPG0227E:翻译/jsp/myJsp.jsp时捕获到异常:/jsp/myJsp.jsp(863,4)-> JSPG0122E:无法解析EL函数$ {不为空rowVo.operation.package}。在com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateElFunction(ELValidator.java:500)在com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateELExpression(ELValidator.java:122)在com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.validateCustomTagAttribute(ValidateVisitor.java:1757)的com.ibm.ws.jsp.translator.visitor.validator.ELValidator.validateELExpression(ELValidator.java:149)在com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.visitCustomTagStart(ValidateVisitor.java:294)上的com.ibm.ws.jsp.translator.visitor.validator.ValidateVisitor.validateCustomTagAttributeValues(ValidateVisitor.java:1405)在com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:366)在com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisitor.java:419) com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisit)上的.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:369)或com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:369)处的com.ibm.ws.jsp.translator.visitor.JspVisitor.processChildren(JspVisitor.java: 419)，位于com.ibm.ws.jsp.translator.visitor.JspVisitor.visit(JspVisitor.java:216)上com.ibm.ws.jsp.translator.visitor.JspVisitor.processJspElement(JspVisitor.java:234)上com.ibm.ws.jsp.translator.utils.JspTranslatorUtil.translateJsp(JspTranslatorUtil.java:254)上的.ibm.ws.jsp.translator.JspTranslator.processVisitors(JspTranslator.java:127) .translator.utils.JspTranslatorUtil.translateJspAndCompile(JspTranslatorUtil.java:121)
JSP文件中有问题的部分如下所示:

<c:forEach var="rowVo"
  items="${searchResultContainer.searchResultRowsPage}"
  varStatus="opStatus">
    <c:if test="${not empty rowVo.operation.jobscopeDescription}">
        <td>${rowVo.operation.jobscopeDescription}</td>
    </c:if>
    <c:if test="${not empty rowVo.operation.package}">
        <td>${rowVo.operation.package}</td>
    </c:if>
</c:forEach>

真正令我困惑的是，当第二个EL表达式几乎相同时，它从第三个Operation表达式引发。

ojit_code是一个生成的类:

public class Operation {

    //Other properties omitted

    @XmlElement(name = "package")
    protected List<Package> _package;
    protected List<String> jobscopeDescription;
    public List<Package> getPackage() {
        if (_package == null) {
            _package = new ArrayList<Package>();
        }
        return this._package;
    }
    public List<String> getJobscopeDescription() {
        if (jobscopeDescription == null) {
            jobscopeDescription = new ArrayList<String>();
        }
        return this.jobscopeDescription;
    }
}

这些文件在迁移期间未更改，并且在WAS 6.1上运行良好。有人知道这是怎么回事吗？

最佳答案

WebSphere Application Server v8.0及更高版本中增强了负责检查是否将保留关键字用作EL变量标识符的代码，从而使检查更加严格。变量检查代码不仅检查保留的EL关键字，还检查Java保留的关键字。

有关更多信息，请参见本文:http://www-01.ibm.com/support/docview.wss?uid=swg21642419&myns=swgws&mynp=OCSSEQTP&mync=A