exception java.io.IOException is never thrown in body of corresponding try statement是怎么回事？？

[hard_blue]

ComplexV3JspBuilder(String fileName) {
builder = new SAXBuilder();
try {
doc = builder.build(new File(fileName));
Element root = doc.getRootElement();
programName = root.getAttributeValue("id");
} catch (JDOMException e) {
System.err.println("xml is not well-formed.");
e.printStackTrace();
} catch (IOException e) {
System.err.println("IO error");
e.printStackTrace();
}
init();
}

编译的时候第二个catch有错
错误提示：exception java.io.IOException is never thrown in body of corresponding try statement
请问怎么回事

[silverend]

try {
doc = builder.build(new File(fileName));
Element root = doc.getRootElement();
programName = root.getAttributeValue("id");
}

字面上好象是说在该try语句块内永不会抛出java.io.IOException ，
将catch (IOException e) {
System.err.println("IO error");
e.printStackTrace();
}
删除试试

[jFresH_MaN]

很清楚了，去掉这些
catch (IOException e) {
System.err.println("IO error");
e.printStackTrace();
}

[shan1119]

同意楼上两位大哥

[MARS.nEIL]

若方法builder.build没有甩出异常,就不用对异常进行处理..把try...catch去掉.