我有同样的问题。
我用

I had the same problem. I used

<fileset dir="${basedir}/build">
  <include name="**/*.class"/>
</fileset>

FindBugs的目标内，似乎有太多的.class文件传递到findbug（？通过命令行？），因为当我用

inside findbugs target and it seems that there is too much .class files to be passed to findbug (?via command line?) because when I used

<fileset dir="${basedir}/build/com/domain/package">
  <include name="**/*.class"/>
</fileset>

这有低数量的类，错误就消失了。

that had low number of classes, the error was gone.

于是，我通过使一个JAR文件，并将其输送到FindBugs的以

So, I solved the problem by making one jar file and feeding it to findbugs target with

<findbugs home="${findbugs.home}">
  ...
  <class location="${basedir}/targets/classes-to-analyze.jar"/>
</findbugs>