詹金斯未能开始

Question

以前运行的Jenkins安装不再启动。当尝试通过网络访问时，由于服务不可用，我收到HTTP 503错误。

詹金斯1.567-1.1
CentOS 6.7
java版“1.6.0_39”
OpenJDK运行时环境（IcedTea6 1.13.11）（rhel-1.13.11.0.el6_7-x86_64）
OpenJDK 64位服务器VM（内置23.25-b01，混合模式）

我已尝试安装多个字体包，并检查它是否以无头模式运行。它是。

这是堆栈跟踪：

SEVERE: Failed to initialize Jenkins
hudson.util.AWTProblem: java.lang.NullPointerException
    at hudson.WebAppMain.contextInitialized(WebAppMain.java:182)
    at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:782)
    at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:424)
    at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:774)
    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:249)
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1242)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:717)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
    at org.eclipse.jetty.server.Server.doStart(Server.java:282)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at winstone.Launcher.<init>(Launcher.java:154)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:622)
    at Main._main(Main.java:293)
    at Main.main(Main.java:98)
Caused by: java.lang.NullPointerException
    at sun.font.FontManager.getDefaultPlatformFont(FontManager.java:3409)
    at sun.java2d.SunGraphicsEnvironment$2.run(SunGraphicsEnvironment.java:263)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.java2d.SunGraphicsEnvironment.<init>(SunGraphicsEnvironment.java:164)
    at sun.awt.X11GraphicsEnvironment.<init>(X11GraphicsEnvironment.java:254)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:534)
    at java.lang.Class.newInstance(Class.java:379)
    at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
    at sun.font.FontManager.initSGEnv(FontManager.java:1121)
    at sun.font.FontManager.findFont2D(FontManager.java:1876)
    at java.awt.Font.getFont2D(Font.java:477)
    at java.awt.Font.getFamily(Font.java:1198)
    at java.awt.Font.getFamily_NoClientCode(Font.java:1172)
    at java.awt.Font.getFamily(Font.java:1164)
    at java.awt.Font.toString(Font.java:1661)
    at hudson.util.ChartUtil.<clinit>(ChartUtil.java:229)
    at hudson.WebAppMain.contextInitialized(WebAppMain.java:181)
    ... 19 more
May 20, 2016 9:07:53 AM org.eclipse.jetty.util.log.JavaUtilLog warn
WARNING: Failed startup of context w.{,file:/var/cache/jenkins/war/},/var/cache/jenkins/war
java.lang.NullPointerException
    at jenkins.util.groovy.GroovyHookScript.run(GroovyHookScript.java:63)
    at hudson.util.BootFailure.publish(BootFailure.java:43)
    at hudson.WebAppMain.contextInitialized(WebAppMain.java:244)
    at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:782)
    at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:424)
    at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:774)
    at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:249)
    at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1242)
    at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:717)
    at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:494)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
    at org.eclipse.jetty.server.Server.doStart(Server.java:282)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
    at winstone.Launcher.<init>(Launcher.java:154)
    at winstone.Launcher.main(Launcher.java:354)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:622)
    at Main._main(Main.java:293)
    at Main.main(Main.java:98)