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我有两个Java组件。首先是分析MyTree对象并使用JXPathContext来删除任务。然后任务被发送到第二个。 第二个组件正在执行任务。在execuction我收到以下错误:JXPathException'没有写入方法'错误
org.apache.commons.jxpath.JXPathException: Exception trying to remove all for xpath /*[action='REMOVE']
; Cannot modify property: my.test.MyTree.bbb; No write method
at org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.removeAll(JXPathContextReferenceImpl.java:572)
at org.apache.commons.jxpath.ri.JXPathCompiledExpression.removeAll(JXPathCompiledExpression.java:128)
...
类结构收起是这样的:
class MyTree {
public final List<Aaa> aaa = new ArrayList();
public final List<Bbb> bbb = new ArrayList();
public final List<Ccc> ccc = new ArrayList();
}
class Task {
public String action;
}
class Aaa extends Task{
}
class Bbb extends Task{
}
class Ccc extends Task{
}
你有任何想法,为什么我得到这个错误?