!SESSION 2022-05-08 19:19:37.929 -----------------------------------------------
eclipse.buildId=unknown
java.version=14
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=ja_JP
Command-line arguments:  -os win32 -ws win32 -arch x86_64

!ENTRY org.eclipse.e4.ui.css.core 4 0 2022-05-08 19:19:58.858
!MESSAGE invalid property handler for false: org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.ui.forms" was unable to instantiate class "org.eclipse.ui.internal.forms.css.properties.css2.CSSPropertyFormHandler".
