git: openjdk/jdk15u-dev: 8258373: Update the text handling in the JPasswordField

[Yuri Nesterenko]

Changeset: e00b4668
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2021-07-29 10:35:20 +0000
URL:       https://git.openjdk.java.net/jdk15u-dev/commit/e00b4668d6350d0faccfb87c47f65a480b90c15c

8258373: Update the text handling in the JPasswordField

Backport-of: 7afb01dce966e4c00880711ef232af12af755b3a

! src/java.desktop/share/classes/javax/swing/JPasswordField.java
! src/java.desktop/share/classes/javax/swing/text/GapContent.java
! src/java.desktop/share/classes/javax/swing/text/Segment.java
! src/java.desktop/share/classes/javax/swing/text/SegmentCache.java
+ test/jdk/javax/swing/JPasswordField/CheckCommonUseCases.java
+ test/jdk/javax/swing/JPasswordField/CleanInternalStorageOnSetText.java
+ test/jdk/javax/swing/JPasswordField/TextBeanProperty.java