Jenkins configuration issue - jenkins

Question

I am facing error while adding JDK 1.8.0_60.
A problem occurred while processing the request. Please check our bug
tracker to see if a similar problem has already been reported. If it
is already reported, please vote and put a comment on it to let us
gauge the impact of the problem. If you think this is a new issue,
please file a new issue. When you file an issue, make sure to add the
entire stack trace, along with the version of Jenkins and relevant
plugins. The users list might be also useful in understanding what has
happened.
Stack trace
javax.servlet.ServletException: Failed to parse JSON:init
at org.kohsuke.stapler.RequestImpl.getSubmittedForm(RequestImpl.java:918)
at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2917)`jdk1.8.0_60`
at sun.reflect.GeneratedMethodAccessor235.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649)
at org.kohsuke.stapler.Stapler.service(Stapler.java:238)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:132)
at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:123)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:49)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:370)
at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: net.sf.json.JSONException: A JSONObject text must begin with '{' at character 1 of init
at net.sf.json.util.JSONTokener.syntaxError(JSONTokener.java:499)
at net.sf.json.JSONObject._fromJSONTokener(JSONObject.java:919)
at net.sf.json.JSONObject._fromString(JSONObject.java:1145)
at net.sf.json.JSONObject.fromObject(JSONObject.java:162)
at net.sf.json.JSONObject.fromObject(JSONObject.java:132)
at org.kohsuke.stapler.RequestImpl.getSubmittedForm(RequestImpl.java:916)
... 54 more

Answer 1

Uninstall the plugins wherever you see warnings on Manage Jenkins page of Jenkins. Follow the following steps:
Go to Jenkins Ex: http://localhost:8080/
Click on Manage Jenkins
You will see some warnings.
Ex:
Warnings have been published for the following currently installed components:
Jenkins 2.289.1 core and libraries
Multiple security vulnerabilities in Jenkins 2.299 and earlier, LTS 2.289.1 and earlier
Note: You may get different warnings (one or more warnings)
Right click on each and every warnings (Please do it one by one if you have more than one warnings)
Now go to Manage Plugins (on the same page.. or Manage Jenkins -> Manage Plugins)
Click on Installed tab
Paste the copied link in the Search box
Uninstall the Plugin
Restart the Jenkins once you uninstall all the unwanted or unsecured plugins
Please repeat the above steps until you uninstall all the unwanted plugins that showed up as warnings on Manage Jenkins page.
Once you uninstall, you will not get any Logging ID error message while configuring. Juts make sure that you don't see any warnings.
Hope this helps! Please like it if it has worked or unlike if it didn't help you.
Thank you. :)

Answer 2

Are you using chrome? Try firefox or IE first, this issue happened in some specified version of chrome browser.
Also, this bug has been reported on the jenkins official bug tracker and marked as blocker, keep an eye on this.
Exception: javax.servlet.ServletException: Failed to parse JSON:init (on WIndows 7)
Error while running parametrized build: javax.servlet.ServletException: Failed to parse JSON