JspContextWrapper.java 文件源码

public JspContextWrapper(JspContext jspContext,
        ArrayList<String> nestedVars, ArrayList<String> atBeginVars,
        ArrayList<String> atEndVars, Map<String,String> aliases) {
    this.invokingJspCtxt = (PageContext) jspContext;
    if (jspContext instanceof JspContextWrapper) {
        rootJspCtxt = ((JspContextWrapper)jspContext).rootJspCtxt;
    }
    else {
        rootJspCtxt = invokingJspCtxt;
    }
    this.nestedVars = nestedVars;
    this.atBeginVars = atBeginVars;
    this.atEndVars = atEndVars;
    this.pageAttributes = new HashMap<String, Object>(16);
    this.aliases = aliases;

    if (nestedVars != null) {
        this.originalNestedVars = new HashMap<String, Object>(nestedVars.size());
    }
    syncBeginTagFile();
}