我有点困惑。有人可以帮助解决以下问题吗
我正在编写一个ant脚本，它将编译java代码并部署文件。请注意，在javac标签中我添加了一个属性 debug =“on”。根据文档，调试的leagle值为 true或false （不是开启和关闭）。
据我所知，debug会将Java代码链接回行号，源代码中的变量名称以及源本身的名称（使用debuglevel属性）。
出于问题，我添加了debug =“on”并且认为我将在堆栈交易中收到“未知来源”而不是行号，而是我收到带有行号的正确堆栈跟踪。
Questin：我对调试属性的理解是不正确的。如果是的话，你能帮帮我吗？
下面粘贴的是已编辑的堆栈交易。我对debug = true和debug = on都是一样的。
> javax.naming.CommunicationException: Failed to connect to server
> localhost:1099 [Root exception is
> javax.naming.ServiceUnavailableException: Failed to connect to server
> localhost:1099 [Root exception is java.net.ConnectException:
> Connection refused: connect]] at
> org.jnp.interfaces.NamingContext.getServer(NamingContext.java:216) at
> org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1116) at
> org.jnp.interfaces.NamingContext.lookup(NamingContext.java:478) at
> org.jnp.interfaces.NamingContext.lookup(NamingContext.java:471) at
> javax.naming.InitialContext.lookup(InitialContext.java:392) at
> com.XXXXX.products.fi.mbs.server.someclass2.<init>(someclass2.java:85)
> at
> com.XXXXX.products.eurorepo.server.someclass1.<init>(someclass1.java:21)
> at
> com.XXXXX.products.eurorepo.server.boot.someclass3.registerFactories(someclass3.java:136)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597) at
> com.XXXXX.products.common.someclass4.callMethod(someclass4.java:154)
> at
> com.XXXXX.products.server.someclass5.callMethod(someclass5.java:118)
> at
> com.XXXXX.products.common.someclass4.callMethod(someclass4.java:141)
> at
> com.XXXXX.products.server.someclass5.registerFactories(someclass5.java:48)
> at com.XXXXX.cs.yyy.yyyServer.init(yyyServer.java:292) at
> com.XXXXX.cs.yyy.yyyServer.<init>(yyyServer.java:135) at
> com.XXXXX.cs.yyy.yyyServer.bootyyyServer(yyyServer.java:494) at
> com.XXXXX.cs.yyy.yyyServer.main(yyyServer.java:691) at
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597) at
> com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
> Caused by: javax.naming.ServiceUnavailableException: Failed to connect
> to server localhost:1099 [Root exception is java.net.ConnectException:
> Connection refused: connect] at
> org.jnp.interfaces.NamingContext.getServer(NamingContext.java:191)
> ... 24 more Caused by: java.net.ConnectException: Connection refused:
> connect at java.net.PlainSocketImpl.socketConnect(Native Method) at
> java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351) at
> java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
> at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200) at
> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at
> java.net.Socket.connect(Socket.java:529) at
> java.net.Socket.connect(Socket.java:478) at
> java.net.Socket.<init>(Socket.java:375) at
> java.net.Socket.<init>(Socket.java:276) at
> org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:69)
> at
> org.jnp.interfaces.TimedSocketFactory.createSocket(TimedSocketFactory.java:62)
> at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:187)