一切正常，直到我在春季批量申请中开始出现此错误，不知道是什么原因或解决方案。任何参考都会有很大的帮助。
---- Debugging information ----
message : Could not call java.util.concurrent.CopyOnWriteArrayList.readObject()
cause-exception : java.lang.RuntimeException
cause-message : null
class : java.util.HashMap
required-type : java.util.concurrent.CopyOnWriteArrayList
path : /map/entry/java.util.concurrent.CopyOnWriteArraySet/al/java.util.concurrent.CopyOnWriteArrayList
line number : -1
-------------------------------
at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callReadObject(SerializationMethodInvoker.java:88)
at com.thoughtworks.xstream.converters.reflection.SerializableConverter.doUnmarshal(SerializableConverter.java:386)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:150)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:81)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:55)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:75)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshallField(AbstractReflectionConverter.java:234)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:206)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:150)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:81)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:55)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:75)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:59)
at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:77)
at com.thoughtworks.xstream.converters.collections.MapConverter.populateMap(MapConverter.java:79)
at com.thoughtworks.xstream.converters.collections.MapConverter.unmarshal(MapConverter.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:81)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:55)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:75)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:59)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:142)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:931)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:917)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:861)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:853)
at org.springframework.batch.core.repository.dao.XStreamExecutionContextStringSerializer.deserialize(XStreamExecutionContextStringSerializer.java:110)
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao$ExecutionContextRowMapper.mapRow(JdbcExecutionContextDao.java:322)
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao$ExecutionContextRowMapper.mapRow(JdbcExecutionContextDao.java:308)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:92)
at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60)
at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:649)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:587)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:637)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:666)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:674)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:718)
at org.springframework.batch.core.repository.dao.JdbcExecutionContextDao.getExecutionContext(JdbcExecutionContextDao.java:112)
at org.springframework.batch.core.explore.support.SimpleJobExplorer.getJobExecutionDependencies(SimpleJobExplorer.java:191)
at org.springframework.batch.core.explore.support.SimpleJobExplorer.getJobExecutions(SimpleJobExplorer.java:80)
at org.springframework.batch.core.launch.support.SimpleJobOperator.startNextInstance(SimpleJobOperator.java:352)
at com.ccclogic.bi.utils.JobRegisteringOperator.startNextInstance(JobRegisteringOperator.java:69)
at com.ccclogic.bi.sync.framework.job.KinesisCDRExtractorJob.call(KinesisCDRExtractorJob.java:36)
at com.ccclogic.bi.sync.framework.job.KinesisCDRExtractorJob.call(KinesisCDRExtractorJob.java:20)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException
at com.thoughtworks.xstream.io.xml.AbstractPullReader.moveDown(AbstractPullReader.java:96)
at com.thoughtworks.xstream.io.ReaderWrapper.moveDown(ReaderWrapper.java:36)
at com.thoughtworks.xstream.io.path.PathTrackingReader.moveDown(PathTrackingReader.java:37)
at com.thoughtworks.xstream.converters.reflection.SerializableConverter$2.readFromStream(SerializableConverter.java:275)
at com.thoughtworks.xstream.core.util.CustomObjectInputStream.readObjectOverride(CustomObjectInputStream.java:86)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:364)
at java.util.concurrent.CopyOnWriteArrayList.readObject(CopyOnWriteArrayList.java:879)
at sun.reflect.GeneratedMethodAccessor167.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.thoughtworks.xstream.converters.reflection.SerializationMethodInvoker.callReadObject(SerializationMethodInvoker.java:84)
... 49 more
答案 0 :(得分：4)
在处理请求时，您的列表似乎已从某处更新。
仅在大小不匹配时抛出RuntimeException。
以下是来自AbstractPullReader.moveDown：
public void moveDown() {
int currentDepth = elementStack.size();
while (elementStack.size() <= currentDepth) {
move();
if (elementStack.size() < currentDepth) {
throw new RuntimeException(); // sanity check
}
}
}