我（尝试）使用口水来处理我的定价规则。但是当我尝试执行规则时，会引发以下异常：
java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage
at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:418)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:120)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:109)
at com.sapienter.jbilling.server.pluggableTask.PluggableTask.readKnowledgeBase(PluggableTask.java:115)
at com.sapienter.jbilling.server.rule.RulesBaseTask.executeRules(RulesBaseTask.java:57)
at com.sapienter.jbilling.server.item.tasks.RulesPricingTask2.getPrice(RulesPricingTask2.java:81)
at com.sapienter.jbilling.server.item.ItemBL.getPrice(ItemBL.java:357)
[...many not so interesting lines...]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.StreamCorruptedException: invalid stream header: 3C3F786D
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at org.drools.common.DroolsObjectInputStream.<init>(DroolsObjectInputStream.java:55)
at org.drools.common.DroolsObjectInputStream.<init>(DroolsObjectInputStream.java:49)
at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)
at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158)
at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:408)
... 88 more
由于所有代码都来自库，我猜问题不在于代码，而在于我的项目设置/使用 jars/使用规则/其他。此异常的典型原因是什么？我应该寻找什么来找到异常的原因？有人有确定问题的策略吗？
更新： 有趣......我的应用程序似乎仍然有效。看起来它从错误中恢复。那么，也许我的项目库中有一个错误？每次启动时看到错误记录并不好，但似乎并不重要。嗯...