Question

我遇到了使用Capistrano的错误。我已经把这个错误缩小到了这行代码：

puts message

其中“message”是通过net-ssh来自删除服务器的字符串。

所以我正在尝试创建一个再现此错误的.rb文件。应该很容易......我只是Marshal.dump(message)，将我提供的内容复制/粘贴到我的脚本中Marshal.load(...)。

但是当我这样做时，我的单个.rb文件可以正常运行。

所以我检查了我的应用程序，当我编组并立即解开capistrano中的字符串时，它可以工作。因此，在编组时会丢失一些东西，这会阻止我可靠地重复错误。

我正在使用jruby：

jruby 1.6.4 (ruby-1.9.2-p136) (2011-08-23 17ea768) (Java HotSpot(TM) Client VM 1.6.0_26) [Windows 7-x86-java]

放置错误

ByteBuffer.java:352:in `wrap': java.lang.IndexOutOfBoundsException
        from ChannelDescriptor.java:618:in `write'
        from RubyIO.java:1386:in `fwrite'
        from RubyIO.java:1319:in `write'
        from RubyIO$i$1$0$write.gen:65535:in `call'
        from RubyClass.java:686:in `finvoke'
        from RuntimeHelpers.java:548:in `invoke'
        from RubyBasicObject.java:358:in `callMethod'
        from RubyIO.java:2297:in `write'
        from RubyIO.java:2283:in `putsArray'
        from RubyIO.java:2252:in `puts'
        from RubyKernel.java:522:in `puts'
        from RubyKernel$s$0$0$puts.gen:65535:in `call'
        from JavaMethod.java:630:in `call'
        from DynamicMethod.java:207:in `call'
        from CachingCallSite.java:167:in `call'
        from FCallOneArgNode.java:36:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from IfNode.java:117:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from ASTInterpreter.java:112:in `INTERPRET_BLOCK'
        from Interpreted19Block.java:203:in `evalBlockBody'
        from Interpreted19Block.java:154:in `yield'
        from Block.java:130:in `yield'
        from RubyString.java:6830:in `each_lineCommon19'
        from RubyString.java:6801:in `each_lineCommon19'
        from RubyString.java:6790:in `lines'
        from RubyString$i$lines.gen:65535:in `call'
        from JavaMethod.java:442:in `call'
        from RubyClass.java:544:in `finvoke'
        from RuntimeHelpers.java:541:in `invoke'
        from RubyBasicObject.java:382:in `callMethod'
        from RubyEnumerator.java:190:in `each'
        from RubyEnumerator$i$0$0$each.gen:65535:in `call'
        from CachingCallSite.java:142:in `callBlock'
        from CachingCallSite.java:153:in `callIter'
        from CallNoArgBlockNode.java:64:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from IfNode.java:117:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from ASTInterpreter.java:75:in `INTERPRET_METHOD'
        from InterpretedMethod.java:276:in `call'
        from DefaultMethod.java:211:in `call'
        from CachingCallSite.java:235:in `call'
        from FCallThreeArgNode.java:40:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from ASTInterpreter.java:75:in `INTERPRET_METHOD'
        from InterpretedMethod.java:255:in `call'
        from DefaultMethod.java:203:in `call'
        from RubyClass.java:582:in `finvoke'
        from RubyBasicObject.java:1697:in `send19'
        from RubyKernel.java:2121:in `send19'
        from RubyKernel$s$send19.gen:65535:in `call'
        from JavaMethod.java:300:in `call'
        from CachingCallSite.java:235:in `call'
        from CallThreeArgNode.java:61:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from ASTInterpreter.java:112:in `INTERPRET_BLOCK'
        from Interpreted19Block.java:203:in `evalBlockBody'
        from Interpreted19Block.java:191:in `yield'
        from Interpreted19Block.java:122:in `call'
        from Block.java:89:in `call'
        from RubyProc.java:274:in `call'
        from RubyProc.java:262:in `call19'
        from RubyProc$i$0$0$call19.gen:65535:in `call'
        from DynamicMethod.java:227:in `call'
        from DynamicMethod.java:223:in `call'
        from CachingCallSite.java:235:in `call'
        from CallThreeArgNode.java:61:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from ASTInterpreter.java:112:in `INTERPRET_BLOCK'
        from Interpreted19Block.java:203:in `evalBlockBody'
        from Interpreted19Block.java:191:in `yield'
        from Interpreted19Block.java:122:in `call'
        from Block.java:89:in `call'
        from RubyProc.java:274:in `call'
        from RubyProc.java:262:in `call19'
        from RubyProc$i$0$0$call19.gen:65535:in `call'
        from DynamicMethod.java:219:in `call'
        from DynamicMethod.java:215:in `call'
        from CachingCallSite.java:201:in `call'
        from CallTwoArgNode.java:59:in `interpret'
        from IfNode.java:117:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from ASTInterpreter.java:75:in `INTERPRET_METHOD'
        from InterpretedMethod.java:190:in `call'
        from DefaultMethod.java:179:in `call'
        from CachingCallSite.java:312:in `cacheAndCall'
        from CachingCallSite.java:169:in `call'
        from CallOneArgNode.java:57:in `interpret'
        from NewlineNode.java:104:in `interpret'
        from BlockNode.java:71:in `interpret'
        from ASTInterpreter.java:75:in `INTERPRET_METHOD'
        from InterpretedMethod.java:212:in `call'
        from DefaultMethod.java:187:in `call'
        from RubyClass.java:563:in `finvoke'
        from RubyBasicObject.java:1691:in `send19'
        from RubyKernel.java:2117:in `send19'
        from RubyKernel$s$send19.gen:65535:in `call'
        from JavaMethod.java:283:in `call'

它持续的时间比这要长，但它只是一堆动态方法调用。

该错误还会在puts "#{message}"和puts "#{message.strip}"

上显示不同的错误

Answer 1

可能是消息是另一种ruby对象，它赋予ruby IO系列类http://www.ruby-doc.org/core/IO.html而不是String，而是来自ssh会话的某种缓冲区。尝试Marshal.dump(message.to_s)，或者message.class来验证它实际是什么。

Answer 2

这是JRuby 1.6.4中的一个错误。它已在1_6分支中修复，应在1.6.5版本中修复。

您可以在此处详细了解：

https://jira.codehaus.org/browse/JRUBY-6116

长话短说：如果你想留在1.6.4

，请使用str = Marshal.load(Marshal.dump(str))

编辑：1.6.5已发布并包含此修复程序。

Ruby中的Marshaling字符串

2 个答案: