Java “StreamCorruptedException: invalid stream header”的可能原因
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Possible causes for "StreamCorruptedException: invalid stream header"
提问by Arne Deutsch
I (try to) use drools to process my pricing rules. But when I try to execute the rules the following exception is thrown:
我（尝试）使用流口水来处理我的定价规则。但是当我尝试执行规则时会抛出以下异常：
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
As all the code is from a library I guess the problem is not in the code but in my project setup/use of jars/use of rules/whatever. What are the typical reasons for this exception? What should I looking for to find the reason for the exception? Someone has a strategy to pinpoint the problem?
由于所有代码都来自库，我想问题不在于代码，而在于我的项目设置/使用 jars/使用规则/任何。这种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？有人有找出问题的策略吗？
Update:Interesting ... my application seems to work anyway. Looks like it recovers from the error. So, maybe a bug in the library of my project? Not nice to see the error logged at every startup, but don't seem to be critical. Hmmm ...
更新：有趣......我的应用程序似乎无论如何都可以工作。看起来它从错误中恢复了。那么，也许是我项目库中的一个错误？看到每次启动时记录的错误并不好，但似乎并不重要。嗯...
采纳答案by finereport
You are passing an XML file as an ObjectInputStream, but this data should be previously serialized via an ObjectOutputStream.
你是传递一个XML文件作为ObjectInputStream，但这一数据应通过一个预先序列化ObjectOutputStream。
