Github user zsxwing commented on the pull request:
https://github.com/apache/spark/pull/3241#issuecomment-63000073
Exception won't be in the method signature.
```scala
scala> import java.io.IOException
import java.io.IOException
scala> class A {
| @throws[IOException]
| def foo() {
| throw new IOException("error!")
| }
|
| def bar(): Unit = {
| foo()
| }
| }
defined class A
scala> :javap -private -c A
Compiled from "<console>"
public class A extends java.lang.Object{
public void foo() throws java.io.IOException;
Code:
0: new #9; //class java/io/IOException
3: dup
4: ldc #11; //String error!
6: invokespecial #15; //Method
java/io/IOException."<init>":(Ljava/lang/String;)V
9: athrow
public void bar();
Code:
0: aload_0
1: invokevirtual #20; //Method foo:()V
4: return
public A();
Code:
0: aload_0
1: invokespecial #22; //Method java/lang/Object."<init>":()V
4: return
}
```
In the `bar()`, the instruction is `1: invokevirtual #20; //Method
foo:()V`. The method is still `foo:()V`.
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