Java - Is ByteArrayOutputStream safe without flush() and close()?
java
Solution
No, it will get garbage collected once the last reference to it is lost.
Per the javadoc:
Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.
Also, if you look at the code, both `flush` and `close` are no-ops in the `ByteArrayOutputStream` class (although `flush` is inherited from `OutputStream`, it is a no-op in `OutputStream` unless overridden in the specific implementation).
Problem
Well, will ByteArrayOutputStream cause memory overflow if it doesn't properly flush and close? I mean are they necessary to be put in the code or Java will garbage-collect it?