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Posted to derby-dev@db.apache.org by "Kathey Marsden (JIRA)" <ji...@apache.org> on 2012/07/10 20:12:34 UTC

[jira] [Created] (DERBY-5852) dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type

Kathey Marsden created DERBY-5852:
-------------------------------------

             Summary: dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type
                 Key: DERBY-5852
                 URL: https://issues.apache.org/jira/browse/DERBY-5852
             Project: Derby
          Issue Type: Bug
          Components: Tools
    Affects Versions: 10.9.1.0, 10.8.2.2, 10.7.1.1, 10.6.2.1, 10.10.0.0
            Reporter: Kathey Marsden


With Derby 10.6 and higher, dblook fails if derby.jar is not in the classpath because of  DERBY-4688. It cannot execute the queries against the system catalogs that have UDT's.   Users can work around this issue by adding derby.jar to the classpath before running dblook.

This could be fixed in dblook by  casting UDT fields in its queries to long varchar, per the release note attached to DERBY-4688.


To reproduce.
Start network server 
java org.apache.derby.drda.NetworkServerControl start

In another window set classpath to contain only derbyclient.jar and derbytools.jar but not derby.jar

e.g. 
export CLASSPATH=".;C:/cygwin/svn2/trunk/jars/sane/derbyclient.jar;C:/cygwin/svn2/trunk/jars/sane/derbytools.jar"

Create a database with ij
java org.apache.derby.tools.ij

ij version 10.10
ij> connect 'jdbc:derby://localhost:1527/wombat;create=true';
ij> create table mytab (i int);
0 rows inserted/updated/deleted
ij> insert into mytab values(1);
1 row inserted/updated/deleted
ij> exit;

run dblook

java org.apache.derby.tools.dblook -d 'jdbc:derby://localhost:1527/wombat'


The output is:
-- Timestamp: 2012-07-10 11:08:36.829
-- Source database is: wombat
-- Connection URL is: jdbc:derby://localhost:1527/wombat
-- appendLogs: false

-- ----------------------------------------------
-- DDL Statements for tables
-- ----------------------------------------------

CREATE TABLE "APP"."MYTAB" (-- Note: At least one unexpected error/warning message was
-- encountered during DDL generation.  See dblook.log
-- to review the message(s).

The dblook.log contains
~/repro/dblookclient $cat dblook.log
java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescri
ptorImpl
        at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:108)
        at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364)
        at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1079)
        at org.apache.derby.impl.tools.dblook.DB_Table.createColumn(DB_Table.java:151)
        at org.apache.derby.impl.tools.dblook.DB_Table.doTables(DB_Table.java:104)
        at org.apache.derby.tools.dblook.go(dblook.java:538)
        at org.apache.derby.tools.dblook.<init>(dblook.java:142)
        at org.apache.derby.tools.dblook.main(dblook.java:97)
Caused by: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.d
erby.catalog.types.TypeDescriptorImpl
        at org.apache.derby.client.am.SqlException.<init>(SqlException.java:167)
        at org.apache.derby.client.am.SqlException.<init>(SqlException.java:231)
        at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:651)
        at org.apache.derby.client.am.Cursor.getString(Cursor.java:1059)
        at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1069)
        ... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.derby.catalog.types.TypeDescriptorImpl
        at java.lang.Class.forName(Class.java:174)
        at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:636)
        at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1607)
        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1528)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1764)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:383)
        at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:647)
        ... 7 more
-- **--> DEBUG: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescriptorImp
l


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[jira] [Updated] (DERBY-5852) dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type

Posted by "Knut Anders Hatlen (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-5852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen updated DERBY-5852:
--------------------------------------

    Labels: derby_triage10_10  (was: )
    
> dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5852
>                 URL: https://issues.apache.org/jira/browse/DERBY-5852
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.6.2.1, 10.7.1.1, 10.8.2.2, 10.9.1.0, 10.10.0.0
>            Reporter: Kathey Marsden
>              Labels: derby_triage10_10
>
> With Derby 10.6 and higher, dblook fails if derby.jar is not in the classpath because of  DERBY-4688. It cannot execute the queries against the system catalogs that have UDT's.   Users can work around this issue by adding derby.jar to the classpath before running dblook.
> This could be fixed in dblook by  casting UDT fields in its queries to long varchar, per the release note attached to DERBY-4688.
> To reproduce.
> Start network server 
> java org.apache.derby.drda.NetworkServerControl start
> In another window set classpath to contain only derbyclient.jar and derbytools.jar but not derby.jar
> e.g. 
> export CLASSPATH=".;C:/cygwin/svn2/trunk/jars/sane/derbyclient.jar;C:/cygwin/svn2/trunk/jars/sane/derbytools.jar"
> Create a database with ij
> java org.apache.derby.tools.ij
> ij version 10.10
> ij> connect 'jdbc:derby://localhost:1527/wombat;create=true';
> ij> create table mytab (i int);
> 0 rows inserted/updated/deleted
> ij> insert into mytab values(1);
> 1 row inserted/updated/deleted
> ij> exit;
> run dblook
> java org.apache.derby.tools.dblook -d 'jdbc:derby://localhost:1527/wombat'
> The output is:
> -- Timestamp: 2012-07-10 11:08:36.829
> -- Source database is: wombat
> -- Connection URL is: jdbc:derby://localhost:1527/wombat
> -- appendLogs: false
> -- ----------------------------------------------
> -- DDL Statements for tables
> -- ----------------------------------------------
> CREATE TABLE "APP"."MYTAB" (-- Note: At least one unexpected error/warning message was
> -- encountered during DDL generation.  See dblook.log
> -- to review the message(s).
> The dblook.log contains
> ~/repro/dblookclient $cat dblook.log
> java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescri
> ptorImpl
>         at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:108)
>         at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1079)
>         at org.apache.derby.impl.tools.dblook.DB_Table.createColumn(DB_Table.java:151)
>         at org.apache.derby.impl.tools.dblook.DB_Table.doTables(DB_Table.java:104)
>         at org.apache.derby.tools.dblook.go(dblook.java:538)
>         at org.apache.derby.tools.dblook.<init>(dblook.java:142)
>         at org.apache.derby.tools.dblook.main(dblook.java:97)
> Caused by: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.d
> erby.catalog.types.TypeDescriptorImpl
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:167)
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:231)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:651)
>         at org.apache.derby.client.am.Cursor.getString(Cursor.java:1059)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1069)
>         ... 5 more
> Caused by: java.lang.ClassNotFoundException: org.apache.derby.catalog.types.TypeDescriptorImpl
>         at java.lang.Class.forName(Class.java:174)
>         at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:636)
>         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1607)
>         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1528)
>         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1764)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:383)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:647)
>         ... 7 more
> -- **--> DEBUG: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescriptorImp
> l

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[jira] [Commented] (DERBY-5852) dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type

Posted by "Kathey Marsden (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/DERBY-5852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410656#comment-13410656 ] 

Kathey Marsden commented on DERBY-5852:
---------------------------------------

I verified 10.5 works fine

                
> dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5852
>                 URL: https://issues.apache.org/jira/browse/DERBY-5852
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.6.2.1, 10.7.1.1, 10.8.2.2, 10.9.1.0, 10.10.0.0
>            Reporter: Kathey Marsden
>
> With Derby 10.6 and higher, dblook fails if derby.jar is not in the classpath because of  DERBY-4688. It cannot execute the queries against the system catalogs that have UDT's.   Users can work around this issue by adding derby.jar to the classpath before running dblook.
> This could be fixed in dblook by  casting UDT fields in its queries to long varchar, per the release note attached to DERBY-4688.
> To reproduce.
> Start network server 
> java org.apache.derby.drda.NetworkServerControl start
> In another window set classpath to contain only derbyclient.jar and derbytools.jar but not derby.jar
> e.g. 
> export CLASSPATH=".;C:/cygwin/svn2/trunk/jars/sane/derbyclient.jar;C:/cygwin/svn2/trunk/jars/sane/derbytools.jar"
> Create a database with ij
> java org.apache.derby.tools.ij
> ij version 10.10
> ij> connect 'jdbc:derby://localhost:1527/wombat;create=true';
> ij> create table mytab (i int);
> 0 rows inserted/updated/deleted
> ij> insert into mytab values(1);
> 1 row inserted/updated/deleted
> ij> exit;
> run dblook
> java org.apache.derby.tools.dblook -d 'jdbc:derby://localhost:1527/wombat'
> The output is:
> -- Timestamp: 2012-07-10 11:08:36.829
> -- Source database is: wombat
> -- Connection URL is: jdbc:derby://localhost:1527/wombat
> -- appendLogs: false
> -- ----------------------------------------------
> -- DDL Statements for tables
> -- ----------------------------------------------
> CREATE TABLE "APP"."MYTAB" (-- Note: At least one unexpected error/warning message was
> -- encountered during DDL generation.  See dblook.log
> -- to review the message(s).
> The dblook.log contains
> ~/repro/dblookclient $cat dblook.log
> java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescri
> ptorImpl
>         at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:108)
>         at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1079)
>         at org.apache.derby.impl.tools.dblook.DB_Table.createColumn(DB_Table.java:151)
>         at org.apache.derby.impl.tools.dblook.DB_Table.doTables(DB_Table.java:104)
>         at org.apache.derby.tools.dblook.go(dblook.java:538)
>         at org.apache.derby.tools.dblook.<init>(dblook.java:142)
>         at org.apache.derby.tools.dblook.main(dblook.java:97)
> Caused by: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.d
> erby.catalog.types.TypeDescriptorImpl
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:167)
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:231)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:651)
>         at org.apache.derby.client.am.Cursor.getString(Cursor.java:1059)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1069)
>         ... 5 more
> Caused by: java.lang.ClassNotFoundException: org.apache.derby.catalog.types.TypeDescriptorImpl
>         at java.lang.Class.forName(Class.java:174)
>         at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:636)
>         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1607)
>         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1528)
>         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1764)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:383)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:647)
>         ... 7 more
> -- **--> DEBUG: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescriptorImp
> l

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[jira] [Updated] (DERBY-5852) dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type

Posted by "Kathey Marsden (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-5852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden updated DERBY-5852:
----------------------------------

    Issue & fix info: Known fix,Repro attached,Workaround attached  (was: High Value Fix,Newcomer,Repro attached,Known fix,Workaround attached)

Unchecking high value and newcomer. Issue may be complex and is lower risk now that some time has passed with the incompatibility.
                
> dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5852
>                 URL: https://issues.apache.org/jira/browse/DERBY-5852
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.6.2.1, 10.7.1.1, 10.8.2.2, 10.9.1.0, 10.10.0.0
>            Reporter: Kathey Marsden
>
> With Derby 10.6 and higher, dblook fails if derby.jar is not in the classpath because of  DERBY-4688. It cannot execute the queries against the system catalogs that have UDT's.   Users can work around this issue by adding derby.jar to the classpath before running dblook.
> This could be fixed in dblook by  casting UDT fields in its queries to long varchar, per the release note attached to DERBY-4688.
> To reproduce.
> Start network server 
> java org.apache.derby.drda.NetworkServerControl start
> In another window set classpath to contain only derbyclient.jar and derbytools.jar but not derby.jar
> e.g. 
> export CLASSPATH=".;C:/cygwin/svn2/trunk/jars/sane/derbyclient.jar;C:/cygwin/svn2/trunk/jars/sane/derbytools.jar"
> Create a database with ij
> java org.apache.derby.tools.ij
> ij version 10.10
> ij> connect 'jdbc:derby://localhost:1527/wombat;create=true';
> ij> create table mytab (i int);
> 0 rows inserted/updated/deleted
> ij> insert into mytab values(1);
> 1 row inserted/updated/deleted
> ij> exit;
> run dblook
> java org.apache.derby.tools.dblook -d 'jdbc:derby://localhost:1527/wombat'
> The output is:
> -- Timestamp: 2012-07-10 11:08:36.829
> -- Source database is: wombat
> -- Connection URL is: jdbc:derby://localhost:1527/wombat
> -- appendLogs: false
> -- ----------------------------------------------
> -- DDL Statements for tables
> -- ----------------------------------------------
> CREATE TABLE "APP"."MYTAB" (-- Note: At least one unexpected error/warning message was
> -- encountered during DDL generation.  See dblook.log
> -- to review the message(s).
> The dblook.log contains
> ~/repro/dblookclient $cat dblook.log
> java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescri
> ptorImpl
>         at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:108)
>         at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1079)
>         at org.apache.derby.impl.tools.dblook.DB_Table.createColumn(DB_Table.java:151)
>         at org.apache.derby.impl.tools.dblook.DB_Table.doTables(DB_Table.java:104)
>         at org.apache.derby.tools.dblook.go(dblook.java:538)
>         at org.apache.derby.tools.dblook.<init>(dblook.java:142)
>         at org.apache.derby.tools.dblook.main(dblook.java:97)
> Caused by: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.d
> erby.catalog.types.TypeDescriptorImpl
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:167)
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:231)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:651)
>         at org.apache.derby.client.am.Cursor.getString(Cursor.java:1059)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1069)
>         ... 5 more
> Caused by: java.lang.ClassNotFoundException: org.apache.derby.catalog.types.TypeDescriptorImpl
>         at java.lang.Class.forName(Class.java:174)
>         at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:636)
>         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1607)
>         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1528)
>         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1764)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:383)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:647)
>         ... 7 more
> -- **--> DEBUG: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescriptorImp
> l

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[jira] [Updated] (DERBY-5852) dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type

Posted by "Knut Anders Hatlen (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/DERBY-5852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen updated DERBY-5852:
--------------------------------------

    Urgency: Normal
    
> dblook fails with client if derby.jar is not in classpath with java.sql.SQLException: Error marshalling or unmarshalling a user defined type
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-5852
>                 URL: https://issues.apache.org/jira/browse/DERBY-5852
>             Project: Derby
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 10.6.2.1, 10.7.1.1, 10.8.2.2, 10.9.1.0, 10.10.0.0
>            Reporter: Kathey Marsden
>              Labels: derby_triage10_10
>
> With Derby 10.6 and higher, dblook fails if derby.jar is not in the classpath because of  DERBY-4688. It cannot execute the queries against the system catalogs that have UDT's.   Users can work around this issue by adding derby.jar to the classpath before running dblook.
> This could be fixed in dblook by  casting UDT fields in its queries to long varchar, per the release note attached to DERBY-4688.
> To reproduce.
> Start network server 
> java org.apache.derby.drda.NetworkServerControl start
> In another window set classpath to contain only derbyclient.jar and derbytools.jar but not derby.jar
> e.g. 
> export CLASSPATH=".;C:/cygwin/svn2/trunk/jars/sane/derbyclient.jar;C:/cygwin/svn2/trunk/jars/sane/derbytools.jar"
> Create a database with ij
> java org.apache.derby.tools.ij
> ij version 10.10
> ij> connect 'jdbc:derby://localhost:1527/wombat;create=true';
> ij> create table mytab (i int);
> 0 rows inserted/updated/deleted
> ij> insert into mytab values(1);
> 1 row inserted/updated/deleted
> ij> exit;
> run dblook
> java org.apache.derby.tools.dblook -d 'jdbc:derby://localhost:1527/wombat'
> The output is:
> -- Timestamp: 2012-07-10 11:08:36.829
> -- Source database is: wombat
> -- Connection URL is: jdbc:derby://localhost:1527/wombat
> -- appendLogs: false
> -- ----------------------------------------------
> -- DDL Statements for tables
> -- ----------------------------------------------
> CREATE TABLE "APP"."MYTAB" (-- Note: At least one unexpected error/warning message was
> -- encountered during DDL generation.  See dblook.log
> -- to review the message(s).
> The dblook.log contains
> ~/repro/dblookclient $cat dblook.log
> java.sql.SQLException: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescri
> ptorImpl
>         at org.apache.derby.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:108)
>         at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:364)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1079)
>         at org.apache.derby.impl.tools.dblook.DB_Table.createColumn(DB_Table.java:151)
>         at org.apache.derby.impl.tools.dblook.DB_Table.doTables(DB_Table.java:104)
>         at org.apache.derby.tools.dblook.go(dblook.java:538)
>         at org.apache.derby.tools.dblook.<init>(dblook.java:142)
>         at org.apache.derby.tools.dblook.main(dblook.java:97)
> Caused by: org.apache.derby.client.am.SqlException: Error marshalling or unmarshalling a user defined type: org.apache.d
> erby.catalog.types.TypeDescriptorImpl
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:167)
>         at org.apache.derby.client.am.SqlException.<init>(SqlException.java:231)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:651)
>         at org.apache.derby.client.am.Cursor.getString(Cursor.java:1059)
>         at org.apache.derby.client.am.ResultSet.getString(ResultSet.java:1069)
>         ... 5 more
> Caused by: java.lang.ClassNotFoundException: org.apache.derby.catalog.types.TypeDescriptorImpl
>         at java.lang.Class.forName(Class.java:174)
>         at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:636)
>         at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1607)
>         at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1528)
>         at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1764)
>         at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:383)
>         at org.apache.derby.client.am.Cursor.get_UDT(Cursor.java:647)
>         ... 7 more
> -- **--> DEBUG: Error marshalling or unmarshalling a user defined type: org.apache.derby.catalog.types.TypeDescriptorImp
> l

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