java - フォーム Bean の作成中にエラーが発生しました

Question

エラーは次のとおりです。

10:44:18,520 INFO  [STDOUT] - Error creating form bean of class com.getcare.crud.web.StudentForm
java.lang.StackOverflowError
    at com.getcare.remote.Structure.<init>(Structure.java:8)
    at com.getcare.crud.remote.StudentStructure.<init>(StudentStructure.java:15)
    at com.getcare.crud.remote.StudentContactInfoStructure.<init>(StudentContactInfoStructure.java:21)
    at com.getcare.crud.remote.StudentStructure.<init>(StudentStructure.java:21)
    at com.getcare.crud.remote.StudentContactInfoStructure.<init>(StudentContactInfoStructure.java:21)
    at com.getcare.crud.remote.StudentStructure.<init>(StudentStructure.java:21)

考えられるエラーは何ですか？