Windchill PDMLink 12.0 で「java.lang.UnsupportedClassVersionError: wt/change2/WTChangeInvestigationTypeInterface は、より新しいバージョンの Java ランタイムによってコンパイルされました」というエラーが発生してメソッドサーバーを起動できません

Windchill PDMLink を開始できず、メソッドサーバーログに次のエラーが表示されます:

ERROR [main] wt.method.server.startup.services  - Failed to create: wt.services.service.53=wt.folder.FolderService/wt.folder.StandardFolderService java.lang.ExceptionInInitializerError
	at wt.folder.StandardFolderService.<clinit>(StandardFolderService.java:180)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:315)
	at wt.services.ManagerImplementation.create(ManagerImplementation.java:235)
	at wt.services.StandardManagerFactory.createImplementations(StandardManagerFactory.java:135)
	at wt.services.StandardManagerFactory.<init>(StandardManagerFactory.java:117)
	at wt.services.StandardManagerFactory$Singleton.<clinit>(StandardManagerFactory.java:73)
	at wt.services.StandardManagerFactory.getInstance(StandardManagerFactory.java:102)
	at wt.services.StandardManagerService.createFactory(StandardManagerService.java:374)
	at wt.services.StandardManagerService.initialize(StandardManagerService.java:364)
	at wt.services.StandardManagerService.newStandardManagerService(StandardManagerService.java:100)
	at wt.services.StandardServicesHandler.getFactory(StandardServicesHandler.java:51)
	at wt.services.StandardServicesHandler.start(StandardServicesHandler.java:42)
	at wt.method.MethodServerMain.run(MethodServerMain.java:584)
	at wt.method.MethodServerMain.main(MethodServerMain.java:353)
Caused by: wt.introspection.WTIntrospectionException: java.lang.UnsupportedClassVersionError: wt/change2/WTChangeInvestigationTypeInterface has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0 for wt.change2.WTChangeInvestigation
	at wt.introspection.ClassInfo.loadClass(ClassInfo.java:1895)
	at wt.introspection.ClassInfo.getConcreteClass(ClassInfo.java:1001)
	at wt.folder.StandardFolderService.getIteratedFolderedClasses(StandardFolderService.java:3216)
	at wt.folder.StandardFolderService.<clinit>(StandardFolderService.java:177)
	... 14 more