hg: jdk/client: 6542439: Significant memory leak in BasicComboBoxUI and MetalComboBoxButton

[prasanta.sadhukhan at oracle.com]

Changeset: c890a336bded
Author:    psadhukhan
Date:      2020-08-28 17:12 +0530
URL:       https://hg.openjdk.java.net/jdk/client/rev/c890a336bded

6542439: Significant memory leak in BasicComboBoxUI and MetalComboBoxButton
Reviewed-by: serb

! src/java.desktop/macosx/classes/com/apple/laf/AquaComboBoxButton.java
! src/java.desktop/share/classes/com/sun/java/swing/plaf/motif/MotifComboBoxUI.java
! src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java
! src/java.desktop/share/classes/javax/swing/plaf/metal/MetalComboBoxButton.java
! src/java.desktop/share/classes/javax/swing/plaf/synth/SynthComboBoxUI.java
+ test/jdk/javax/swing/JComboBox/TestMemLeakComboBox.java