After Eclipse upgrade from Oxygen to Photon Tomcat

This question is very similar to this one except for the Eclipse "upgrade from" version, mine was Oxygen to Photon not Mars, and for the platform my office tends to use Windows, so I am on Win7.

After upgrade, Tomcat8 would no longer start, I removed the server and then added it back. I even tried removing the configurations files: org.eclipse.jst.server.tomcat.core.prefs and org.eclipse.wst.server.core.prefs still not starting, publishes fine, just not starting.

Here are the "Event Details":

Plug-in: org.eclipse.equinox.registry

Message: Plug-in "org.eclipse.jst.server.tomcat.core" was unable to instantiate class "org.eclipse.jst.server.tomcat.core.internal.TomcatLaunchConfigurationDelegate".

Stack Trace:
java.lang.NoSuchMethodError: org.eclipse.jst.server.tomcat.core.internal.TomcatLaunchConfigurationDelegate.allowAdvancedSourcelookup()V
at org.eclipse.jst.server.tomcat.core.internal.TomcatLaunchConfigurationDelegate.<init>(TomcatLaunchConfigurationDelegate.java:38)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:187)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:931)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:60)
at org.eclipse.debug.internal.core.LaunchDelegate.getDelegate(LaunchDelegate.java:83)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:738)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:717)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:712)
at org.eclipse.wst.server.core.internal.Server.startImpl2(Server.java:3566)
at org.eclipse.wst.server.core.internal.Server.startImpl(Server.java:3502)
at org.eclipse.wst.server.core.internal.Server$StartJob.run(Server.java:377)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:60)

Again I realize this is similar to Jason's question but I do not have enough reputation to expand or add similar details on his question. Looks like he just reinstalled, I was hoping not to do that.

Yes, both Eclipse and Tomcat8 configured for Java 8, upgraded via the IDE.

I'm sure I have to upgrade something just not sure what that is, thanks for reading.

Update:
Sorry for delayed update, I wound up reinstalling Photon from scratch, then just reopened my projects, all worked well. Wished I had seen @John Gordon's answer prior, I would have tried that first, sounds quite feasible.

@nitind
I assumed I did when I did the upgrade, I definitely did not upgrade things like "Java Development Tools" specifically.

@John Gordon
I never even considered the "Apache Tomcat Plugin" meh...

回答1:

I had the same issue. Was able to resolve it by simply upgrading my Apache Tomcat Plugin (9.1.2).

回答2:

It happened the same with me, in my case I had to do a new download of a clean version of eclipse Photon instead of updating.

And it worked with the same version of java and tomcat it used in the eclipse Oxygen.

One small problem was that I had to install all the plugins again in the new version of eclipse. (SVN, Dark theme, Sonar lint and etc.)