spring-batch - Spring XD ExecutionContext デシリアライザー

Question

分離されたクラスパスを持つジョブ モジュールがあります。分離されたコンテキストからシリアル化されるステップ実行コンテキストに POJO を追加しました。このコンテキストがデシリアライズされると、例外がスローされます。これは、デフォルトの実行コンテキスト デシリアライザーが親の最初のクラスローダーではなくアプリ コンテキスト クラスローダーを使用するため、クラスをロードできないためです。回避策は、分離されたクラスパスではなく、POJO を含む jar をメイン クラスパスに追加することです。これらを分離されたクラスパスに保持し、ParentFirstClassloader を使用する方法はありますか?

スタックトレース

Caused by: com.thoughtworks.xstream.mapper.CannotResolveClassException: my.meta.JobMetadata
        at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:79)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:79)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:74)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:71)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30)
        at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:47)
        at com.thoughtworks.xstream.core.util.HierarchicalStreams.readClassType(HierarchicalStreams.java:29)
        at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:70)
        at com.thoughtworks.xstream.converters.collections.MapConverter.putCurrentEntryIntoMap(MapConverter.java:110)
        at com.thoughtworks.xstream.converters.collections.MapConverter.populateMap(MapConverter.java:98)
        at com.thoughtworks.xstream.converters.collections.MapConverter.populateMap(MapConverter.java:92)
        at com.thoughtworks.xstream.converters.collections.MapConverter.unmarshal(MapConverter.java:87)
        at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
        ... 60 more

and 

Caused by: org.springframework.batch.core.job.flow.FlowExecutionException: Ended flow=egress-transfer at state=myjob.step with exception
        at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:171)
        at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:141)
        at org.springframework.batch.core.job.flow.FlowStep.doExecute(FlowStep.java:90)
        ... 9 more
Caused by: com.thoughtworks.xstream.converters.ConversionException: my.meta.JobMetadata : my.meta.JobMetadata
---- Debugging information ----
message             : my.meta.JobMetadata
cause-exception     : com.thoughtworks.xstream.mapper.CannotResolveClassException
cause-message       : my.meta.JobMetadata
class               : java.util.HashMap
required-type       : java.util.HashMap
converter-type      : com.thoughtworks.xstream.converters.collections.MapConverter
path                : /map/entry[2]/my.meta.JobMetadata
line number         : -1
version             : 1.4.7
-------------------------------
        at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:79)
        at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
        at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)