RFR: 8292215: java/util/stream/boottest/java.base/java/util/stream/SpinedBufferTest.java times out with slowdebug [v3]

[Daniel D. Daugherty]

> Split the java/util/stream/SpinedBufferTest.java test into two parts:
> - java/util/stream/SpinedBufferTest1.java has the first 6 test cases
> - java/util/stream/SpinedBufferTes2.java has the second 6 test cases
> 
> I couldn't figure out a way to set a larger timeout value for the entirety
> of java/util/stream/SpinedBufferTest.java and I saw that other folks solved
> this problem with testng tests by splitting the test into more parts.
> 
> This fix is being tested in my jdk-20+10 stress testing run.

Daniel D. Daugherty has updated the pull request incrementally with one additional commit since the last revision:

  shipilev CR changes

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/9845/files
  - new: https://git.openjdk.org/jdk/pull/9845/files/942e5ffd..946c7cf8

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9845&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9845&range=01-02

  Stats: 44 lines in 5 files changed: 12 ins; 8 del; 24 mod
  Patch: https://git.openjdk.org/jdk/pull/9845.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9845/head:pull/9845

PR: https://git.openjdk.org/jdk/pull/9845