[8u] Request for backporting a series of issues affecting core-libs

[chengjingwei]

Hi, all

Would someone help to approve the backport of the following issues?

- Issue list:

JDK-8151788

JDK-8026049

JDK-8149469

JDK-8149469

- Details:

JDK-8151788

Reproduced on 8u:[Yes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8151788

Patch is clean:[Yes]

JDK9 Changeset: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/3b503af253a4

JDK-8026049

Reproduced on 8u:[Yes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8026049

Patch is clean:[Yes]

JDK9 Changeset:
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/662f01f35702

JDK-8151163

Reproduced on 8u:[Yes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8151163

Patch is clean:[Yes]

JDK9 Changeset:
http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/f9dcefa42da3

JDK-8149469

Reproduced on 8u:[Yes]

Bug: https://bugs.openjdk.java.net/browse/JDK-8149469

Patch is clean:[Yes]

JDK9 Changeset: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/5e0fd2cdcd55

These issues are decreasing the stability of our applications. They are
always reproducible with jdk built from the

latest jdk8u master repo.