Prior to this commit, if the TaskExecutor configured in
WebSocketMessageBrokerStats for the inboundChannelExecutor or
outboundChannelExecutor was not a ThreadPoolTaskExecutor, a
StringIndexOutOfBoundsException was thrown when attempting to parse the
results of invoking toString() on the executor.
The reason is that ThreadPoolTaskExecutor delegates to a
ThreadPoolExecutor whose toString() implementation generates text
containing "pool size = ...", and WebSocketMessageBrokerStats'
getExecutorStatsInfo() method relied on the presence of "pool" in the
text returned from toString().
This commit fixes this bug by ensuring that the text returned from
toString() contains "pool" before parsing the text. If "pool" is not
present in the text, getExecutorStatsInfo() now returns "unknown"
instead of throwing a StringIndexOutOfBoundsException.
Closes gh-27209
The migration from JUnit 4 assertions to AssertJ assertions resulted in
several unnecessary casts from int to long that actually cause
assertions to pass when they should otherwise fail.
This commit fixes all such bugs for the pattern `.isNotEqualTo((long)`.
This commit lowers the level of Throwable handling in parts of
spring-websocket which now handle Exception instead and allow any Error
to propagate.
Closes gh-24075
Previously, tests in ConcurrentWebSocketSessionDecoratorTests that use
the BlockingSession would fail intermittently. This appears to have
been due to a race condition in sendBlockingMessage where the call
to getSentMessageLatch() that stores a latch in nextMessageLatch on
the main thread may happen after the call to sendMessage that counts
down the latch if it is non-null occurs on the executor's thread.
This commit updates sendBlockingMessage to call getSentMessageLatch()
(and therefore store the latch) before it sumbmits the task to the
executor. This ensures that the latch will be available when the
exeuctor's thread attempts to retrieve and decrement it.
BlockingSession's AtomicReference fields have also been made final to
eliminate the possibility of any visibility problems across threads.
Closes gh-23642
