1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
The documentation for [`Class#newInstance`][javadoc] includes the following
warning:
[javadoc]: https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#newInstance
> Note that this method propagates any exception thrown by the nullary
> constructor, including a checked exception. Use of this method effectively
> bypasses the compile-time exception checking that would otherwise be performed
> by the compiler. The `Constructor.newInstance` method avoids this problem by
> wrapping any exception thrown by the constructor in a (checked)
> `InvocationTargetException`.
Always prefer `myClass.getConstructor().newInstance()` to calling
`myClass.newInstance()` directly. The `Class#newInstance` method is slated for
[deprecation in JDK 9](https://bugs.openjdk.java.net/browse/JDK-6850612).
Note that migrating to `Class#getConstructor()` and `Constructor#newInstance`
requires handling three new exceptions: [`IllegalArgumentException`][iae],
[`NoSuchMethodException`][nsme], and [`InvocationTargetException`][ite].
[iae]: https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html
[ite]: https://docs.oracle.com/javase/8/docs/api/java/lang/reflect/InvocationTargetException.html
[nsme]: https://docs.oracle.com/javase/8/docs/api/java/lang/NoSuchMethodException.html
|
