WLS 5.1 to 6.1 porting issue: ClassLoader (sometimes)

Environment:
WLS 6.1.2 on WINNT w/SP6a
java: 1.3.1 that ships with WLS 6.1
DB: Oracle 8.1.6, Oracle's thin JDBC driver
I'm currently upgrading our application from 5.1 (ejb 1.1) to
6.1 (ejb 2.0). I've also consolidated our 55 separate ejb jars
into a single jar (with all 55 ejbs). Because of 1.1 entity bean
issues, currently all our ejbs are SessionBeans. Everything works
under 5.1 with our test Oracle instance, the 6.1 test environment
is using the same database instance.
I'm seeing several problems.
Here's #2
I receive the exception:
<EJB Exception during invocation from home:
com.eoriginal.engine.core.session.basicAccess.OrgUserSessionBean_w9wvk9_Home
Impl@5ec3be threw exception:
java.lang.NoClassDefFoundError:
com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionHome>
Two interesting things
1) An earlier call to a different session bean found
OrgUserDataAccessSession and
executed several of its methods successfully!
DEBUG - Enter Method
(com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionBean_
rngrwj_Impl::findUserAccountInfo)
rmark
eorginc>
DEBUG - Exit Method
(com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionBean_
rngrwj_Impl::findUserAccountInfo)
com.eoriginal.engine.common.EOInternalUserAccountObject@4ea26e>
2) I've verified that the class
com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionHome
is in THE single ejb jar inside my EAR.
3) Attempts at adding the appropriate <reference-descriptor> to
weblogic-ejb-jar.xml
have had no effect.
4) All EJBs share a base class method that does the Home lookup.
5) The calling paths from EJB to EJB that work, always work. The ones that
fail, always fail.
So even though all EJBs are in one JAR, when I call a method from
one EJB the OrgUserDataAccessSession is found, but when I call a method
from a different EJB a get the exception!
Could this be an EJBC problem? (our EAR was built with Ant 1.4.1)
Is there a subtle difference with the 6.1 classloader behavior that I'm
missing?
TIA
Gordon

Environment:
WLS 6.1.2 on WINNT w/SP6a
java: 1.3.1 that ships with WLS 6.1
DB: Oracle 8.1.6, Oracle's thin JDBC driver
I'm currently upgrading our application from 5.1 (ejb 1.1) to
6.1 (ejb 2.0). I've also consolidated our 55 separate ejb jars
into a single jar (with all 55 ejbs). Because of 1.1 entity bean
issues, currently all our ejbs are SessionBeans. Everything works
under 5.1 with our test Oracle instance, the 6.1 test environment
is using the same database instance.
I'm seeing several problems.
Here's #2
I receive the exception:
<EJB Exception during invocation from home:
com.eoriginal.engine.core.session.basicAccess.OrgUserSessionBean_w9wvk9_Home
Impl@5ec3be threw exception:
java.lang.NoClassDefFoundError:
com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionHome>
Two interesting things
1) An earlier call to a different session bean found
OrgUserDataAccessSession and
executed several of its methods successfully!
DEBUG - Enter Method
(com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionBean_
rngrwj_Impl::findUserAccountInfo)
rmark
eorginc>
DEBUG - Exit Method
(com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionBean_
rngrwj_Impl::findUserAccountInfo)
com.eoriginal.engine.common.EOInternalUserAccountObject@4ea26e>
2) I've verified that the class
com.eoriginal.engine.core.session.basicAccess.OrgUserDataAccessSessionHome
is in THE single ejb jar inside my EAR.
3) Attempts at adding the appropriate <reference-descriptor> to
weblogic-ejb-jar.xml
have had no effect.
4) All EJBs share a base class method that does the Home lookup.
5) The calling paths from EJB to EJB that work, always work. The ones that
fail, always fail.
So even though all EJBs are in one JAR, when I call a method from
one EJB the OrgUserDataAccessSession is found, but when I call a method
from a different EJB a get the exception!
Could this be an EJBC problem? (our EAR was built with Ant 1.4.1)
Is there a subtle difference with the 6.1 classloader behavior that I'm
missing?
TIA
Gordon

Similar Messages

  • WLS 5.1 to 6.1 porting issue: RequiresNew & ORA-01002 error

    Repost from the EJB group
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    I'm currently upgrading our application from 5.1 (ejb 1.1) to
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    TIA
    Gordon
    ------------- ejb-jar.xml (edited) ------------------------
    <ejb-jar>
    <small-icon>images/green-cube.gif</small-icon>
    <enterprise-beans>
    <!-- TCUSecurityDataAccessSession -->
    <session>
    <small-icon>images/orange-cube.gif</small-icon>
    <ejb-name>TCUSecurityDataAccessSession</ejb-name>
    <home>com.eoriginal.engine.core.session.basicAccess.TCUSecurityDataAccessSes
    sionHome</home>
    <remote>com.eoriginal.engine.core.session.basicAccess.TCUSecurityDataAccessS
    ession</remote>
    <ejb-class>com.eoriginal.engine.core.session.basicAccess.TCUSecurityDataAcce
    ssSessionBean</ejb-class>
    <session-type>Stateless</session-type>
    <transaction-type>Container</transaction-type>
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    <description></description>
    <role-name>****</role-name> <!-- deleted for security -->
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    </assembly-descriptor>
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    ------------- weblogic-ejb-jar.xml (uninteresting) ------------------------
    ------------- config.xml (edited) ------------------------
    <JDBCConnectionPool CapacityIncrement="5"
    DriverName="oracle.jdbc.driver.OracleDriver"
    InitialCapacity="10" MaxCapacity="100" Name="d2Pool"
    Password="*****
    Properties="user=d2engine;STATEMENT_CACHE_SIZE=200"
    Targets="myserver" URL="jdbc:oracle:thin:@*****"/>
    <JDBCTxDataSource JNDIName="jdbc/d2Pool" Name="jdbc/d2Pool"
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    A successful parse-and-execute call must be issued before a fetch.
    This can occur if an attempt was made to FETCH from an active set after
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    Solved.
    The 8.1.6 driver wasn't the problem.
    It turned out that our ConnectionPool utility class wasn't configured
    properly
    and when I thought that I was going TxDatasource, I was actually only
    getting
    a straight Connection. No Tx, so Oracle didn't have one open for the "FOR
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    clause. Now if someone could help on my classloader question in the EJB
    group ;)
    - Gordon
    "Slava Imeshev" <[email protected]> wrote in message
    news:[email protected]...
    Gordon,
    Oracle 8.1.6 driver proved to be buggy and unstable.
    Can you update your oracle thin driver to the newest
    one? It's available from the otn.oracle.com.
    Could you also post the questionable code here, especially
    in the part related to obtaining connection, executing
    stataments, fetching results and obtaining TXs, if any?
    Regards,
    Slava Imeshev
    "Gordon Twaddell" <[email protected]> wrote in message
    news:[email protected]...
    Sree,
    I didn't mention that I'm using the Oracle thin JDBC driver
    (8.1.6.1)
    and its in the CLASSPATH.
    Slava,
    I tried the stmt.setFetchSize(). I got the same result.
    Gordon
    "Sree Bodapati" <[email protected]> wrote in message
    news:[email protected]...
    Hi Gordon,
    One possibility is the environment variable PATH might be pointing to
    an
    older version of the library files for the WebLogic jDriver forOracle.
    Check if the PATH is set to point to the right weblogicoci37.dll (inthe
    <WL_HOME for 6.1>\bin\oci817_8) and make sure your oracle_home is setto
    point to the right folders as well.
    hth
    sree
    "Gordon Twaddell" <[email protected]> wrote in message
    news:[email protected]...
    Repost from the EJB group
    Environment:
    WLS 6.1.2 on WINNT w/SP6a
    java: 1.3.1 that ships with WLS 6.1
    DB: Oracle 8.1.6 (using TRANSACTION_READ_COMMITTED exclusively)
    I'm currently upgrading our application from 5.1 (ejb 1.1) to
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    into a single jar (with all 55 ejbs). Because of 1.1 entity bean
    issues, currently all our ejbs are SessionBeans. Everything works
    under 5.1 with our test Oracle instance, the 6.1 test environment
    is using the same database instance.
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    Here's #1
    With the same TCUSecurityDataAccessSessionBean::updateIfNeeded
    source code and same database instance. 5.1 updates correctly,
    6.1 throws this SQLException. So, I figure its got to be a WLS 6.1
    issue
    or
    my configuration. - I alway suspect me ;)
    ERROR - ORA-01002: fetch out of sequence
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    ean_ridhfi_Impl::updateIfNeeded)
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    This method should be configured with transaction context of:RequiresNew
    Has the 6.1 handling of RequiresNew changed that radically?
    I'm looking for suggestions on how to debug this further.
    TIA
    Gordon
    ------------- ejb-jar.xml (edited) ------------------------
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    <small-icon>images/green-cube.gif</small-icon>
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    Scanning 192.168.1.211 [1 port]
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    Initiating Parallel DNS resolution of 1 host. at 13:27
    Completed Parallel DNS resolution of 1 host. at 13:27, 0.03s elapsed
    Initiating SYN Stealth Scan at 13:27
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    Discovered open port 139/tcp on 192.168.1.211
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    Discovered open port 445/tcp on 192.168.1.211
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    80/tcp   open          http         HP Photosmart 7520 series printer http config (Serial TH3AS711XZ05YZ)
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    | http-methods: GET POST PUT DELETE
    | Potentially risky methods: PUT DELETE
    |_See http://nmap.org/nsedoc/scripts/http-methods.html
    |_http-title: Site doesn't have a title (text/html).
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    | http-methods: GET POST PUT DELETE
    | Potentially risky methods: PUT DELETE
    |_See http://nmap.org/nsedoc/scripts/http-methods.html
    |_http-title: Site doesn't have a title (text/html).
    | ssl-cert: Subject: commonName=HPPS7525/organizationName=HP/stateOrProvinceName=Washington/countryName=US
    | Issuer: commonName=HPPS7525/organizationName=HP/stateOrProvinceName=Washington/countryName=US
    | Public Key type: rsa
    | Public Key bits: 1024
    | Not valid before: 2014-02-25T10:12:24+00:00
    | Not valid after:  2034-02-20T10:12:24+00:00
    | MD5:   9144 ca3b 557e 09cc aba0 8387 2732 2375
    |_SHA-1: a6b2 95c0 b72a 7201 578c 32de 662a e6fe b082 48ca
    |_ssl-date: 2014-03-21T13:30:09+00:00; -4h59m12s from local time.
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    | http-methods: GET POST PUT DELETE
    | Potentially risky methods: PUT DELETE
    |_See http://nmap.org/nsedoc/scripts/http-methods.html
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    7435/tcp open          tcpwrapped
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    | http-methods: GET POST PUT DELETE
    | Potentially risky methods: PUT DELETE
    |_See http://nmap.org/nsedoc/scripts/http-methods.html
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    |   TCP  192.168.1.211:56076  15.201.145.52:5222
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    |   UDP  127.0.0.1:666        *:*
    |_  UDP  192.168.223.1:67     *:*
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    Device type: general purpose
    Running: Wind River VxWorks
    OS CPE: cpe:/o:windriver:vxworks
    OS details: VxWorks
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    Network Distance: 1 hop
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    |     HPA0D3C1BDC832<00>   Flags: <unique><active><permanent>
    |     MSHOME<00>           Flags: <group><active><permanent>
    |     HPA0D3C1BDC832<20>   Flags: <unique><active><permanent>
    |     HPPS7525<00>         Flags: <unique><active><permanent>
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    TRACEROUTE
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