git: openjdk/jdk: 8299600: Use Objects.check*() where appropriate in java.io

[Brian Burkhalter]

Changeset: d086e82b
Author:    Sergey Tsypanov <stsypanov at openjdk.org>
Committer: Brian Burkhalter <bpb at openjdk.org>
Date:      2023-01-06 21:01:21 +0000
URL:       https://git.openjdk.org/jdk/commit/d086e82b3c554362a8fc7095025f8f2910d6e4bc

8299600: Use Objects.check*() where appropriate in java.io

Reviewed-by: alanb, bpb

! src/java.base/share/classes/java/io/CharArrayWriter.java
! src/java.base/share/classes/java/io/FilterOutputStream.java
! src/java.base/share/classes/java/io/LineNumberInputStream.java
! src/java.base/share/classes/java/io/PipedOutputStream.java
! src/java.base/share/classes/java/io/PipedWriter.java
! src/java.base/share/classes/java/io/StringWriter.java