Fortify增量扫描出现java.lang.ClassCastException异常求助

我之前在做Fortify增量扫描时也碰到过一模一样的ClassCastException，这个问题本质是序列化对象类型不匹配，大概率是增量基线和后续扫描的环境不一致导致的。先帮你梳理下你的操作流程和错误信息，再给出针对性的解决办法：

你的Fortify增量扫描操作流程 #

• 步骤1：清理项目

  sourceanalyzer -b my-forty-project-ain -clean
  

• 步骤2：首次代码翻译

  sourceanalyzer -Xmx12G -b my-forty-project-ain -source 1.8 equipment/**/*.java
  

• 步骤3：生成增量基线扫描

  sourceanalyzer -Xmx12G -b my-forty-project-ain -scan -incremental-base -f results_ain.fpr
  

• 步骤4：修改代码
• 步骤5：增量代码翻译

  sourceanalyzer -Xmx12G -b my-forty-project-ain -source 1.8 equipment/**/*.java
  

• 步骤6：执行增量扫描（触发错误）

  sourceanalyzer -Xmx12G -b my-forty-project-ain -scan -incremental -f results_ain.fpr
  

触发的错误堆栈 #

扫描引擎初始化时发生错误。
java.lang.ClassCastException: cannot assign instance of com.fortify.sca.util.serialization.SCARuleHandle to field com.fortify.sca.metadata.SingletonMeta.rule of type com.fortify.sca.rules.SCAGlobalClassRule in instance of com.fortify.sca.metadata.SingletonMeta
at java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(ObjectStreamClass.java:2287) ~[?:1.8.0_181]
at java.io.ObjectStreamClass.setObjFieldValues(ObjectStreamClass.java:1417) ~[?:1.8.0_181]
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2293) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) ~[?:1.8.0_181]
at java.util.concurrent.ConcurrentHashMap.readObject(ConcurrentHashMap.java:1445) ~[?:1.8.0_181]
at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_181]
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1170) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2178) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_181]
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2287) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2211) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2069) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1573) ~[?:1.8.0_181]
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:431) ~[?:1.8.0_181]
at com.fortify.sca.backend.BackEnd.loadProgramModel(BackEnd.java:1173) ~[fortify-sca-19.2.0.0196.jar:?]
at com.fortify.sca.backend.BackEnd.initializeEngine(BackEnd.java:575) [fortify-sca-19.2.0.0196.jar:?]
at com.fortify.sca.backend.BackEnd.analyze(BackEnd.java:776) [fortify-sca-19.2.0.0196.jar:?]
at com.fortify.sca.Main$Sourceanalyzer.run(Main.java:717) [fortify-sca-19.2.0.0196.jar:?]

针对性解决方案 #

这个错误的核心是基线文件的序列化对象与后续扫描的类结构不匹配，可以按以下步骤排查修复：

1. 彻底清理缓存并重新生成基线
   先删除Fortify的本地缓存（通常在~/.fortify/sca目录下，或者项目根目录的临时缓存文件），然后重新执行完整的基线生成流程：

   # 彻底清理项目关联缓存
   sourceanalyzer -b my-forty-project-ain -clean
   # 重新翻译所有代码
   sourceanalyzer -Xmx12G -b my-forty-project-ain -source 1.8 equipment/**/*.java
   # 生成全新的增量基线（避免覆盖旧文件）
   sourceanalyzer -Xmx12G -b my-forty-project-ain -scan -incremental-base -f results_ain_new.fpr
   

   之后修改代码，再用新的基线文件执行增量扫描。

2. 确保SCA版本与规则集完全一致
   检查生成基线和增量扫描时使用的Fortify SCA版本是否都是19.2.0.0196，不要中途升级SCA或者更新规则集——规则类的结构变化会直接导致旧基线无法被新扫描解析。

3. 统一JDK运行环境
   确保所有扫描步骤（清理、翻译、扫描）使用的JDK版本都是1.8.0_181，不同JDK版本的序列化实现细节可能存在差异，也会触发这类类型转换错误。

4. 避免复用旧FPR文件
   增量扫描时不要覆盖基线FPR文件，建议给增量扫描结果单独命名（比如results_ain_incremental.fpr），防止文件损坏或版本冲突。

内容的提问来源于stack exchange，提问作者Dhaval Gujarathi