Jsobject.gewtwindow can not be resolved:jdk version problem,
Java -verbose xxxxx.class
Major version 50,but unsurpported version 55.0,correspond to jdk-11.
Download jdk11 correspond to 55.0
Eclipse-file-property-java compiler-/usr/lib/jvm/jdk-11
Apply code
启动eclipse时出现java.lang.NoClassDefFoundError: org/eclipse/core/runtime/:build path-configure buildpath-library-add external library-org.eclipse.equinox-common.3.15…
org/eclipse/core/commands/common/EventManager
