ROOT: Static field: com.intellij.ide.plugins.newui.PluginUpdatesService.ourFilter

I got a warn when i use ide so i use the memory analyze and get 

[ 741K/ 17%/76.7MB] 1.08GB          1   ROOT: Static field: com.intellij.ide.plugins.newui.PluginUpdatesService.ourFilter
[ 741K/ 17%/76.7MB] 1.08GB          1   (root): com.intellij.ide.plugins.newui.MyPluginModel$$Lambda$18380+0x0000000805e2b958
[ 741K/ 17%/76.7MB] 1.08GB          1   arg$1: com.intellij.openapi.updateSettings.impl.PluginUpdateDialog$1
[ 521K/ 12%/36.0MB]  447MB          1 ! +-myProject: com.intellij.openapi.project.impl.ProjectImpl (disposed)

I think the top three is plugin update related and I just what to know why they take up so much memory