"Initializing plugin support-core" ...
   java.lang.Thread.State: RUNNABLE
        at sun.util.logging.PlatformLogger.getLogger(PlatformLogger.java:199)
        - locked <0x...> (a java.lang.Class for sun.util.logging.PlatformLogger)
        at sun.net.www.protocol.http.HttpURLConnection.<clinit>(HttpURLConnection.java:432)
        at sun.net.www.protocol.http.Handler.openConnection(Handler.java:62)
        at sun.net.www.protocol.http.Handler.openConnection(Handler.java:57)
        at java.net.URL.openConnection(URL.java:1002)
        at com.google.api.client.http.javanet.DefaultConnectionFactory.openConnection(DefaultConnectionFactory.java:31)
        at com.google.api.client.http.javanet.NetHttpTransport.buildRequest(NetHttpTransport.java:136)
        at com.google.api.client.http.javanet.NetHttpTransport.buildRequest(NetHttpTransport.java:62)
        at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:863)
        at com.google.jenkins.plugins.util.MetadataReader$Default.readMetadata(MetadataReader.java:80)
        at com.google.jenkins.plugins.util.MetadataReader$Default.hasMetadata(MetadataReader.java:105)
        at com.google.jenkins.plugins.credentials.oauth.GoogleRobotMetadataCredentials$Descriptor.metadataDescriptor(GoogleRobotMetadataCredentials.java:141)
        at ...
        at net.java.sezpoz.IndexItem.instance(IndexItem.java:183)
        at hudson.ExtensionFinder$GuiceFinder.instantiate(ExtensionFinder.java:369)
        at hudson.ExtensionFinder$GuiceFinder.access$700(ExtensionFinder.java:240)
        at hudson.ExtensionFinder$GuiceFinder$SezpozModule$1.get(ExtensionFinder.java:557)
        at ...
        at hudson.ExtensionFinder$GuiceFinder._find(ExtensionFinder.java:402)
        at hudson.ExtensionFinder$GuiceFinder.find(ExtensionFinder.java:393)
        at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:344)
        at hudson.ExtensionList.load(ExtensionList.java:381)
        at hudson.ExtensionList.ensureLoaded(ExtensionList.java:317)
        - locked <0x...> (a hudson.ExtensionList$Lock)
        at hudson.ExtensionList.iterator(ExtensionList.java:172)
        at jenkins.model.Jenkins.getDescriptorByType(Jenkins.java:1590)
        at ...