hg: jdk-updates/jdk11u-dev: 8195841: PNGImageReader.readNullTerminatedString() doesnt check for non-null terminated strings with length equal to maxLen

[shade at redhat.com]

Changeset: 19b4a1b96b39
Author:    jdv
Date:      2020-04-17 11:10 +0530
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/19b4a1b96b39

8195841: PNGImageReader.readNullTerminatedString() doesnt check for non-null terminated strings with length equal to maxLen
Reviewed-by: serb, prr

! src/java.desktop/share/classes/com/sun/imageio/plugins/png/PNGImageReader.java
+ test/jdk/javax/imageio/plugins/png/MaxLengthKeywordReadTest.java