Build still fails with:

headers:
    [mkdir] Created dir: C:\8DEPLO~1\JDK8_D~2\build\windows-amd64\tmp\deploy\headers\plugin
     [exec] Error: Could not find class file for 'sun.plugin.javascript.navig5.JSObject'.
     [exec] Error: Could not find class file for 'sun.plugin.javascript.navig.JSObject'.
     [exec] Error: Could not find class file for 'sun.plugin.JavaRunTime'.
     [exec] Error: Could not find class file for 'sun.plugin.liveconnect.JavaScriptProtectionDomain'.
     [exec] Error: Could not find class file for 'sun.plugin2.main.server.MozillaBrowserService'.
     [exec] Error: Could not find class file for 'sun.plugin2.main.server.MozillaPlugin'.
     [exec] Error: Could not find class file for 'sun.plugin2.util.PluginTrace'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.AxBridgeObject'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.IExplorerAppletStatusListener'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.IExplorerPluginObject'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.WNetscapePluginObject'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.frame.WNetscapeEmbeddedFrame'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.frame.IExplorerEmbeddedFrame'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.frame.AxBridgeEmbeddedFrame'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.context.IExplorerAppletContext'.
     [exec] Error: Could not find class file for 'sun.plugin.viewer.context.WNetscape6AppletContext'.
     [exec] Error: Could not find class file for 'sun.plugin.net.cookie.WNetscape6CookieHandler'.
     [exec] Error: Could not find class file for 'sun.plugin.net.proxy.WNetscape6BrowserProxyHandler'.
     [exec] Error: Could not find class file for 'sun.plugin.services.AxBridgeBrowserService'.
     [exec] Error: Could not find class file for 'sun.plugin.services.WIExplorerBrowserService'.
     [exec] Error: Could not find class file for 'sun.plugin.services.WNetscape4BrowserService'.
     [exec] Error: Could not find class file for 'sun.plugin.services.WNetscape6BrowserAuthenticator'.
     [exec] Error: Could not find class file for 'sun.plugin.services.WNetscape6BrowserService'.
     [exec] Error: Could not find class file for 'sun.plugin.services.WPlatformService'.
     [exec] Error: Could not find class file for 'sun.plugin.com.event.COMEventHandler'.
     [exec] Error: Could not find class file for 'sun.plugin.com.DispatchImpl'.
     [exec] Error: Could not find class file for 'sun.plugin2.main.server.IExplorerPlugin'.
     [exec] Error: Could not find class file for 'sun.plugin2.main.server.ServerPrintHelper'.