Nikolay Fedorovskikh a95fd91bc6 Don't check accessible in the #capacity method (#7830) ... Motivation: The `#ensureAccessible` method in `UnpooledHeapByteBuf#capacity` used to prevent NPE if buffer is released and `array` is `null`. In all other implementations of `ByteBuf` the accessible is not checked by `capacity` method. We can assign an empty array to `array` in the `deallocate` and don't worry about NPE in the `#capacity`. This will help reduce the number of repeated calls of the `#ensureAccessible` in many operations with `UnpooledHeapByteBuf`. Modifications: 1. Remove `#ensureAccessible` call from `UnpooledHeapByteBuf#capacity`. Use the `EmptyArrays#EMPTY_BYTES` instead of `null` in `#deallocate`. 2. Fix access checks in `AbstractUnsafeSwappedByteBuf` and `AbstractByteBuf#slice` that relied on `#ensureAccessible` in `UnpooledHeapByteBuf#capacity`. This was found by unit tests. Result: Less double calls of `#ensureAccessible` for `UnpooledHeapByteBuf`.		2018-04-03 21:35:02 +02:00
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main/java/io/netty/buffer	Don't check accessible in the #capacity method (#7830)	2018-04-03 21:35:02 +02:00
test/java/io/netty/buffer	FixedCompositeByteBuf should allow to access memoryAddress / array when wrap a single buffer.	2018-03-13 08:50:42 +01:00