It can only be used for once, If you configure the job for second time, following error will be occurred:
Status Code: 500
Exception:
Stacktrace:
java.lang.RuntimeException: Failed to serialize hudson.model.Project#buildWrappers for class hudson.model.FreeStyleProject
at hudson.util.RobustReflectionConverter$2.writeField(RobustReflectionConverter.java:164)
at hudson.util.RobustReflectionConverter$2.visit(RobustReflectionConverter.java:135)
at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:130)
at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:120)
at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:94)
at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:68)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78)
at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63)
at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:840)
at com.thoughtworks.xstream.XStream.marshal(XStream.java:829)
at com.thoughtworks.xstream.XStream.toXML(XStream.java:804)
......
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