[XSTR-565] Unmarshal fails for the marshalled XML

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: 1.3.1
Fix Version/s: 1.4
Component/s: Converters
Labels:
None

JDK version and platform:
java version "1.5.0_11" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03) Java HotSpot(TM) Client VM (build 1.5.0_11-b03, mixed mode)

Description

We're getting following error while trying to unmarshal XML which was successfully marshalled

Code segment
============

private Map deserialize2Map(String serializedStream) {
if (serializedStream == null)

{ return null; }

XStream xstream = new XStream();

try

{ xstream.omitField(Class.forName("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup"), "snapshots"); }

catch (ClassNotFoundException e)

{ e.printStackTrace(); }

return (Map) xstream.fromXML(serializedStream);

}

Results in the same exception even after directing as mentioned below for the reported field to omit from the deserialization

xstream.omitField(Class.forName("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup"), "snapshots");

Any help would be greatly appreciated

========= stack trace starts from here ===============================================

com.thoughtworks.xstream.converters.ConversionException: Cannot construct class java.lang.Class : Class com.thoughtworks.xstream.converters.reflection.ExternalizableConverter can not access a member of class org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot with modifiers "public"
---- Debugging information ----
message : Cannot construct class java.lang.Class
cause-exception : java.lang.IllegalAccessException
cause-message : Class com.thoughtworks.xstream.converters.reflection.ExternalizableConverter can not access a member of class org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot with modifiers "public"
class : java.util.HashMap
required-type : org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot
path : /map/entry[3]/org.springframework.webflow.conversation.impl.ConversationContainer/conversations/org.springframework.webflow.conversation.impl.ContainedConversation/attributes/entry[3]/org.springframework.webflow.execution.repository.impl.SimpleFlowExecutionSnapshotGroup/snapshots/entry/org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot
line number : 76
-------------------------------

========= stack trace ends here ===============================================

=========== Input XML for the above unmarshal routine starts here =====================

<map>
<entry>
<string>org.springframework.web.servlet.i18n.SessionLocaleResolver.LOCALE</string>
<locale>en_US</locale>
</entry>
<entry>
<string>org.jsecurity.web.session.WebSession_INET_ADDRESS_SESSION_KEY</string>
<java.net.Inet4Address resolves-to="java.net.InetAddress">
<address>2130706433</address>
<family>2</family>
</java.net.Inet4Address>
</entry>
<entry>
<string>webflowConversationContainer</string>
<org.springframework.webflow.conversation.impl.ConversationContainer>
<maxConversations>5</maxConversations>
<sessionKey>webflowConversationContainer</sessionKey>
<conversations>
<org.springframework.webflow.conversation.impl.ContainedConversation>
<container reference="../../.."/>
<id class="org.springframework.webflow.conversation.impl.SimpleConversationId">
<id class="int">1</id>
</id>
<lock class="org.springframework.webflow.conversation.impl.JdkConcurrentConversationLock">
<lock class="java.util.concurrent.locks.ReentrantLock">
<sync class="java.util.concurrent.locks.ReentrantLock$NonfairSync" serialization="custom">
<java.util.concurrent.locks.AbstractQueuedSynchronizer>
<default>
<state>0</state>
</default>
</java.util.concurrent.locks.AbstractQueuedSynchronizer>
<java.util.concurrent.locks.ReentrantLock_-Sync>
<default/>
</java.util.concurrent.locks.ReentrantLock_-Sync>
</sync>
</lock>
<timeoutSeconds>30</timeoutSeconds>
</lock>
<attributes>
<entry>
<string>scope</string>
<org.springframework.webflow.core.collection.LocalAttributeMap serialization="custom">
<org.springframework.webflow.core.collection.LocalAttributeMap>
<default>
<attributes>
<entry>
<string>flashScope</string>
<org.springframework.webflow.core.collection.LocalAttributeMap serialization="custom">
<org.springframework.webflow.core.collection.LocalAttributeMap>
<default>
<attributes>
<entry>
<string>messagesMemento</string>
<map/>
</entry>
</attributes>
</default>
</org.springframework.webflow.core.collection.LocalAttributeMap>
</org.springframework.webflow.core.collection.LocalAttributeMap>
</entry>
</attributes>
</default>
</org.springframework.webflow.core.collection.LocalAttributeMap>
</org.springframework.webflow.core.collection.LocalAttributeMap>
</entry>
<entry>
<string>description</string>
<null/>
</entry>
<entry>
<string>flowExecutionSnapshotGroup</string>
<org.springframework.webflow.execution.repository.impl.SimpleFlowExecutionSnapshotGroup>
<snapshots>
<entry>
<int>1</int>
<org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot>
<int>555</int>
<byte-array>H4sIAAAAAAAAAKVSPWgUQRR+ez/JJTnwh2BhIWIhiLh30ZCsSjCH5vBk7wI5/EEw3uzeu9tN9nbG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</byte-array>
<boolean>true</boolean>
</org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot>
</entry>
</snapshots>
<snapshotIds>
<int>1</int>
</snapshotIds>
<maxSnapshots>30</maxSnapshots>
</org.springframework.webflow.execution.repository.impl.SimpleFlowExecutionSnapshotGroup>
</entry>
<entry>
<string>caption</string>
<null/>
</entry>
<entry>
<string>name</string>
<string>loginOrRegister</string>
</entry>
</attributes>
</org.springframework.webflow.conversation.impl.ContainedConversation>
</conversations>
<conversationIdSequence>1</conversationIdSequence>
</org.springframework.webflow.conversation.impl.ConversationContainer>
</entry>
<entry>
<string>org.jsecurity.web.DefaultWebSecurityManager_PRINCIPALS_SESSION_KEY</string>
<org.jsecurity.subject.SimplePrincipalCollection>
<realmPrincipals class="linked-hash-map">
<entry>
<string>JsecDbRealm</string>
<linked-hash-set>
<string>admin</string>
</linked-hash-set>
</entry>
</realmPrincipals>
</org.jsecurity.subject.SimplePrincipalCollection>
</entry>
<entry>
<string>next</string>
<string>http://www.yahoo.com</string>
</entry>
<entry>
<string>org.codehaus.groovy.grails.FLASH_SCOPE</string>
<org.codehaus.groovy.grails.web.servlet.GrailsFlashScope>
<current/>
<next/>
</org.codehaus.groovy.grails.web.servlet.GrailsFlashScope>
</entry>
<entry>
<string>flow</string>
<Flow>
<id>1</id>
<name>default</name>
<flowController>sling</flowController>
<flowAction>loginOrRegister</flowAction>
<saContext>SLINGIT_PORTAL</saContext>
<saPolicy>MAS</saPolicy>
<notes>defaulf flow, english, us</notes>
<emailValidationTemplate></emailValidationTemplate>
<created class="sql-timestamp">2009-03-25 08:54:00.0</created>
<locale>en_US</locale>
<version>0</version>
<wordPairs class="org.hibernate.collection.PersistentSet">
<initialized>false</initialized>
<owner class="Flow" reference="../.."/>
<cachedSize>-1</cachedSize>
<role>Flow.wordPairs</role>
<key class="long">1</key>
<dirty>false</dirty>
</wordPairs>
</Flow>
</entry>
</map>

=========== Input XML for the above unmarshal routine starts here =====================

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Attachments

stacktrace.log

09/Apr/09 10:08 PM

24 kB

Kalleri Faizel Rehiman

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Kalleri Faizel Rehiman added a comment - 08/Apr/09 11:59 PM

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Kalleri Faizel Rehiman added a comment - 08/Apr/09 11:59 PM t

6 older comments

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Kalleri Faizel Rehiman added a comment - 09/Apr/09 10:08 PM

Joerg

Thanks for the update and looking into this issue

Please find the attached stacktrace which includes the xml string that was supplied to unmarshal call as well

Please find below the code block

try

{ XStream xstream = new XStream(); xstream.omitField(Class.forName("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup"), "snapshots"); System.out.println("About to unmarshal following XML"); System.out.println(serializedStream); deserializedMap = (Map) xstream.fromXML(serializedStream); }

catch(Exception e)

{ System.out.println("Error occured while deserializing "); e.printStackTrace(System.out); System.out.println("Error occured while deserializing ends here"); }

Please let us know if you need any additional information

Thanks
Faizel

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Kalleri Faizel Rehiman added a comment - 09/Apr/09 10:08 PM Joerg Thanks for the update and looking into this issue Please find the attached stacktrace which includes the xml string that was supplied to unmarshal call as well Please find below the code block try { XStream xstream = new XStream(); xstream.omitField(Class.forName("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup"), "snapshots"); System.out.println("About to unmarshal following XML"); System.out.println(serializedStream); deserializedMap = (Map) xstream.fromXML(serializedStream); } catch(Exception e) { System.out.println("Error occured while deserializing "); e.printStackTrace(System.out); System.out.println("Error occured while deserializing ends here"); } Please let us know if you need any additional information Thanks Faizel

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Jörg Schaible added a comment - 14/Apr/09 12:42 PM

Can you please run the following test and tell me if it works:

class Main {
    void main(int arc, String[] argv) {
        SerializedFlowExecutionSnapshot snapshot = new SerializedFlowExecutionSnapshot();
        XStream xstream = new XStream();
        String xml = xstream.toXML(snapshot);
        System.out.println(xml);
        Object serialized = xstream.fromXML(xml);
        if (serialized instanceof SerializedFlowExecutionSnapshot ) {
            System.out.println("Done.");
        }
    }
}

Additionally please comment out the code you've posted above in your app and for a test simply try this one:

    Class type = null;
    try {
        type = XStream.class.getClassLoader().loadClass("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup");
        System.out.println("Use XStream CL");
    } catch(CLassNotFoundException) {
        System.out.println("Use Context CL");
        type = Thread.currentThread().getContextClassLoader().loadClass("org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup");
    }
    FlowExecutionSnapshotGroup snapshot = (FlowExecutionSnapshotGroup)type.newInstance();
    if (snapshot != null) {
        System.out.println("Snapshot created");
    }

What is printed here to the console?

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Jörg Schaible added a comment - 14/Apr/09 12:42 PM Can you please run the following test and tell me if it works: class Main { void main( int arc, String [] argv) { SerializedFlowExecutionSnapshot snapshot = new SerializedFlowExecutionSnapshot(); XStream xstream = new XStream(); String xml = xstream.toXML(snapshot); System .out.println(xml); Object serialized = xstream.fromXML(xml); if (serialized instanceof SerializedFlowExecutionSnapshot ) { System .out.println( "Done." ); } } } Additionally please comment out the code you've posted above in your app and for a test simply try this one: Class type = null ; try { type = XStream.class.getClassLoader().loadClass( "org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup" ); System .out.println( "Use XStream CL" ); } catch (CLassNotFoundException) { System .out.println( "Use Context CL" ); type = Thread .currentThread().getContextClassLoader().loadClass( "org.springframework.webflow.execution.repository.impl.FlowExecutionSnapshotGroup" ); } FlowExecutionSnapshotGroup snapshot = (FlowExecutionSnapshotGroup)type.newInstance(); if (snapshot != null ) { System .out.println( "Snapshot created" ); } What is printed here to the console?

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Jörg Schaible added a comment - 09/Aug/10 5:41 PM

No answer on questions.

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Jörg Schaible added a comment - 09/Aug/10 5:41 PM No answer on questions.

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Sergei Ivanov added a comment - 09/Aug/10 6:03 PM

This issue is probably related to ~~XSTR-629~~, which is now fixed.

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Sergei Ivanov added a comment - 09/Aug/10 6:03 PM This issue is probably related to XSTR-629 , which is now fixed.

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Jörg Schaible added a comment - 10/Aug/10 1:58 AM

@Sergei: Well spotted, thanks. I missed the signes in the stack trace.

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Jörg Schaible added a comment - 10/Aug/10 1:58 AM @Sergei: Well spotted, thanks. I missed the signes in the stack trace.

People

Assignee:

Jörg Schaible

Reporter:

Kalleri Faizel Rehiman

Votes:

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Watchers:

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Dates

Created:

08/Apr/09 12:58 AM

Updated:

05/Aug/11 5:04 PM

Resolved:

10/Aug/10 1:58 AM