在 Grails 运行的时候得到错误信息：Error starting Sun’s native2ascii
详细错误栈如下：[native2ascii] Converting 14 files from /home/sgross/myproj/grails-app/i18n to /home/sgross/.grails/1.4.0.M1/projects/myproj/resources/grails-app/i18n
Exception in thread "Thread-11" : Error starting Sun's native2ascii:
at org.apache.tools.ant.taskdefs.optional.native2ascii.SunNative2Ascii.run(SunNative2Ascii.java:67)
at org.apache.tools.ant.taskdefs.optional.native2ascii.DefaultNative2Ascii.convert(DefaultNative2Ascii.java:54)
at org.apache.tools.ant.taskdefs.optional.Native2Ascii.convert(Native2Ascii.java:294)
at org.apache.tools.ant.taskdefs.optional.Native2Ascii.execute(Native2Ascii.java:251)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor50.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at groovy.util.AntBuilder.performTask(AntBuilder.java:255)
at groovy.util.AntBuilder.nodeCompleted(AntBuilder.java:217)
at groovy.util.BuilderSupport.doInvokeMethod(BuilderSupport.java:147)
at groovy.util.AntBuilder.doInvokeMethod(AntBuilder.java:171)
at groovy.util.BuilderSupport.invokeMethod(BuilderSupport.java:64)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at _GrailsPackage_groovy$_run_closure2_closure13_closure16.doCall(_GrailsPackage_groovy:118)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:226)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at _GrailsPackage_groovy$_run_closure2_closure13_closure16.doCall(_GrailsPackage_groovy)
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:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1055)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.Closure.call(Closure.java:405)
at groovy.lang.Closure.call(Closure.java:399)
at org.codehaus.groovy.grails.cli.api.BaseSettingsApi.profile(BaseSettingsApi.java:276)
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:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1055)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:922)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.MetaClassImpl.invokePropertyOrMissing(MetaClassImpl.java:1101)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1057)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:705)
at groovy.lang.GroovyObjectSupport.invokeMethod(GroovyObjectSupport.java:44)
at groovy.lang.Script.invokeMethod(Script.java:78)
at groovy.lang.MetaClassImpl.invokeMethodOnGroovyObject(MetaClassImpl.java:1120)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1014)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.DelegatingMetaClass.invokeMethod(DelegatingMetaClass.java:149)
at org.codehaus.gant.GantMetaClass.invokeMethod(GantMetaClass.java:127)
at org.codehaus.gant.GantMetaClass.invokeMethod(GantMetaClass.java:162)
at groovy.lang.GroovyObjectSupport.invokeMethod(GroovyObjectSupport.java:44)
at groovy.lang.MetaClassImpl.invokeMethodOnGroovyObject(MetaClassImpl.java:1120)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1014)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:66)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145)
at _GrailsPackage_groovy$_run_closure2_closure13.doCall(_GrailsPackage_groovy:116)
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:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:226)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at _GrailsPackage_groovy$_run_closure2_closure13.doCall(_GrailsPackage_groovy)
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:616)
at com.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1105)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1055)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1069)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:885)
at groovy.lang.Closure.call(Closure.java:405)
at groovy.lang.Closure.call(Closure.java:399)
at groovy.lang.Closure.run(Closure.java:483)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.ClassNotFoundException: sun.tools.native2ascii.Main
at org.codehaus.groovy.tools.RootLoader.findClass(RootLoader.java:156)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at org.codehaus.groovy.tools.RootLoader.loadClass(RootLoader.java:128)
at org.codehaus.groovy.grails.cli.support.GrailsRootLoader.loadClass(GrailsRootLoader.java:43)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at org.apache.tools.ant.taskdefs.optional.native2ascii.SunNative2Ascii.run(SunNative2Ascii.java:51)
... 104 more 但是 Grails 的程序还是能启动，通过前台访问，你会得到一个服务器 503 内部错误的信息。
这是因为 JAVA_HOME 的变量没有设置正确。
你需要将这个变量设置到你 JDK 安装的路径下。
如果你的 JDK 安装在：/usr/lib/jvm/jdk1.6.0_25
那么你的 JAVA_HOME 也应该设置为：/usr/lib/jvm/jdk1.6.0_25 而不能设置为：/usr/lib/jvm/jdk1.6.0_25/jre