问一个用Ant来build java文件的问题

[IBM1846]

今天下了个 叫findbugs的开源软件 用ant build 源文件，结果没有说faild或是successful,屏幕输出一大堆相同的语句后就告诉total 有多少秒，就像这样：

at com.sun.org.apache.xerces.internal.impl.xpath.regex.RegularExpression
.matchString(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xpath.regex.RegularExpression
.matchString(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xpath.regex.RegularExpression
.matches(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xpath.regex.RegularExpression
.matches(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dv.xs.XSSimpleTypeDecl.getAct
ualValue(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dv.xs.XSSimpleTypeDecl.valida
te(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.process
OneAttribute(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.process
Attributes(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleS
tartElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.emptyEl
ement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scan
StartElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(U
nknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next
(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown So
urce)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Un
known Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.p
arse(Unknown Source)
at org.apache.tools.ant.taskdefs.optional.XMLValidateTask.doValidate(XML
ValidateTask.java:556)
at org.apache.tools.ant.taskdefs.optional.XMLValidateTask.execute(XMLVal
idateTask.java:321)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.jav
a:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExe
cutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.Main.runBuild(Main.java:809)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)

Total time: 1 second

前面重复的几行之前一直是print到cmd界面的最上面，我用ant是新手，请问怎样可以了解到问题出在哪里呢？
谢谢。

[IBM1846]

刚刚用
ant -v -logfile mylog.txt
查看了下，错误发生在：
BUILD FAILED
D:\findbugs\findbugs-1.3.9\build.xml:219: java.lang.StackOverflowError
其中build.xml 218到214行的信息是

<target name="validate">
<xmlvalidate lenient="false" failonerror="yes">
<attribute name="http://apache.org/xml/features/validation/schema" value="true"/>
<attribute name="http://xml.org/sax/features/namespaces" value="true"/>
<fileset dir="${etc.dir}" includes="*.xml"/>
</xmlvalidate>
</target>

219： <xmlvalidate lenient="false" failonerror="yes">
请教一下了。

[无聊找乐]

一直用bat，不会用ant～～～

[zhangzhiqun]

碰到同样问题，求解

[qingralf]

看问题好像是堆栈溢出.
试着加个参数
<findbugs home="${findbugs.home}" output="html" outputFile="${findbugs.report.name}" timeout="${findbugs.timeout}" jvmargs="-Xmx512m" failonerror="true">

[IBM1846]

我把内容改了，现在标签里的内容是：
<findbugs home="."
output="xml:withMessages"
jvmargs="-Xmx512m"
projectName="Byte code Engineering Library (BCEL)"
outputFile="${sampleoutput.dir}/bcel.xml" >
<class location="${jar.dir}/bcel.jar" />
</findbugs>

ant build还是不行啊

[IBM1846]

我内存2G

今天试着想用Eclipse打开，但是不知道怎么导入，如果直接将源文件夹导入到Eclipse里，文件夹路径什么的应该是乱的，不知道怎么改。
望谁能指点下，谢谢了。

[IBM1846]

改了之后之前那些重复提示的语句里的unknown source变成了可以显示的位置了。
现在都是

at com.sun.org.apache.xerces.internal.impl.xpath.regex.RegularExpression
.matchString(RegularExpression.java:1878)

有三处findbugs标签，我都改了

[IBM1846]

本人纯新手，请问5楼是加在build.xml里吗，具体加在什么地方？

[qingralf]

是build.xml里的.用findbugs,有个findbugs标签的.在标签里加个jvmargs="-Xmx512m"参数.你机器够1g内存吧.