code like below will create Deflater before null check, although it's not a
real mem leak, but it's better to do null check before new Deflater.
try {
DeflaterOutputStream dos = new DeflaterOutputStream(null);
} catch (NullPointerException e) {
passed = true;
}
Similar issues exist in several other classes.
-------------
Commit messages:
- JDK-8265496: improve null check in DeflaterOutputStream/InflaterInputStream
Changes: https://git.openjdk.java.net/jdk/pull/3681/files
Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3681&range=00
Issue: https://bugs.openjdk.java.net/browse/JDK-8265496
Stats: 7 lines in 7 files changed: 0 ins; 0 del; 7 mod
Patch: https://git.openjdk.java.net/jdk/pull/3681.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/3681/head:pull/3681
PR: https://git.openjdk.java.net/jdk/pull/3681
