The KeepAliveStreamCleaner in sun.net.ww.http package had been previously seen
to fail with an IllegalMonitorStateException. This failure was caused by the
use of `wait()` in a non synchronized block. This failure was mitigated through
use of `await()` instead as is shown below (code can be viewed on L119 in
src/java.base/share/classes/sun/net/www/http/KeepAliveStreamCleaner.java).
...
long timeout = TIMEOUT;
while ((kace = poll()) == null) {
waiter.await(timeout, TimeUnit.MILLISECONDS);
...
While the code throwing the exception was fixed, a regression test was not
made. So this patch adds a simple white-box test which calls the
KeepAliveStreamCleaner's run method. `waiter.wait()` should always fail if not
used in a synchronized block or method, so the test verifies that it is not
used.
-------------
Commit messages:
- 8255583: Updated copyright notes
- 8255583: Investigate creating a test to trigger the condition in
KeepAliveStreamCleaner
Changes: https://git.openjdk.java.net/jdk/pull/1659/files
Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1659&range=00
Issue: https://bugs.openjdk.java.net/browse/JDK-8255583
Stats: 49 lines in 2 files changed: 42 ins; 6 del; 1 mod
Patch: https://git.openjdk.java.net/jdk/pull/1659.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/1659/head:pull/1659
PR: https://git.openjdk.java.net/jdk/pull/1659
