我在使用-？arg。根据我的经验，这在Linux(Ubuntu的风格(和Windows 10上都失败了。
以下是build.xml中失败的代码：
<java classname="net.sf.saxon.Transform" classpath="${saxon.dir}/${saxon.jar};." failonerror="true">
<arg value="-?" description="help information"/>
</java>
请注意，这似乎有效：
$ java -cp "java/lib/saxon-he-11.2.jar;java/lib/xmlresolver-4.2.0.jar;java/lib/xmlresolver-4.2.0-data.jar" net.sf.saxon.
Transform '-?'
SaxonJ-HE 11.2 from Saxonica
Usage: see http://www.saxonica.com/documentation/index.html#!using-xsl/commandline
Format: net.sf.saxon.Transform options params
Options available: -? -a -catalog -config -cr -diag -dtd -ea -expand -explain -export -ext -im -init -it -jit -json -l -lib -license -nogo -now -ns -o -opt -or -outval -p -quit -r -relocate -repeat -s -sa -scmin -strip -t -T -target -TB -threads -TJ -Tlevel -Tout -TP -traceout -tree -u -val -versionmsg -warnings -x -xi -xmlversion -xsd -xsdversion -xsiloc -xsl -y --?
Use -XYZ:? for details of option XYZ
Params:
param=value Set stylesheet string parameter
+param=filename Set stylesheet document parameter
?param=expression Set stylesheet parameter using XPath
!param=value Set serialization parameter
一个典型的堆叠竞赛是这样的：
BUILD FAILED
C:x3d-codewww.web3d.orgx3dstylesheetsbuild.xml:364: The following error occurred while executing this line:
C:x3d-codewww.web3d.orgx3dstylesheetsbuild.xml:164: java.lang.UnsupportedOperationException: The Security Manager is deprecated and will be removed in a future release
at java.base/java.lang.System.setSecurityManager(System.java:416)
at org.apache.tools.ant.types.Permissions.setSecurityManager(Permissions.java:103)
at org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:216)
at org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:155)
at org.apache.tools.ant.taskdefs.Java.run(Java.java:891)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:231)
at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:135)
at org.apache.tools.ant.taskdefs.Java.execute(Java.java:108)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:299)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at org.apache.tools.ant.Target.execute(Target.java:449)
at org.apache.tools.ant.Target.performTasks(Target.java:470)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401)
at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
at org.apache.tools.ant.Project.executeTargets(Project.java:1264)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437)
at org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:106)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:299)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350)
at org.apache.tools.ant.Target.execute(Target.java:449)
at org.apache.tools.ant.Target.performTasks(Target.java:470)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401)
at org.apache.tools.ant.Project.executeTarget(Project.java:1374)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1264)
at org.apache.tools.ant.Main.runBuild(Main.java:818)
at org.apache.tools.ant.Main.startAnt(Main.java:223)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)
Total time: 0 seconds
如果有人能想出合适的蚂蚁配置或语法来实现这一点，那就太酷了。
在带有Java 20的Windows 10上发现了相同的错误，解决方案是添加fork="是"；到java命令。自Java18以来，这一直是一个问题，截至本文发布之日，该问题从未得到解决。