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nickb1533966
nickb1533966
December 17, 2025
Answered

Connection verification failed for data source: xxxx_jdbc java.sql.SQLException:

  • December 17, 2025
  • 1 reply
  • 665 views

Hi All,

 

Getting an error i've never seen before on one server of multiple we use to connect to an Oracle datasource via Oracle JDBC Drivers after doing the update from 16 to 17 on CF2023.

 

Connection verification failed for data source: xxxx_jdbc
java.sql.SQLException: Index -1 out of bounds for length 0

 

Error when trying to verify a datasource. It's an Other datasource. Using Oracle JDBC Drivers (in the cflib foler ojdbc11.jar). Driver Name: oracle.jdbc.driver.OracleDriver

 

Have tried removing the datasource and re-adding and get the same result. Have also tried just adding a different oracle jdbc datasource and get the same result.

 

I've also tried deleting the felix-cache and WEB-INF cfclasses but that doesn't seem to have had any effect.

 

Strangely this is only happening on one server of multiple we have connecting to the datasource, some of which are on CF2023 Update 16 and some Update 17.

 

Stack trace has error messages like:

 

"Error","http-nio-8500-exec-2","12/17/25","11:31:02","cfadmin","Index -1 out of bounds for length 0"
java.sql.SQLException: Index -1 out of bounds for length 0
at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java:762)
at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(ConnectionRunner.java:67)
at java.base/java.lang.Thread.run(Thread.java:833)
 
At a bit of a loss where to go with this one now so any help gratefully received!.
 

Coldfusion 2023 Update 17 (only happening on one server of multiple we have updated). 

Windows Server 2019

    Correct answer nickb1533966

    Sooooooo! Did some further digging! There are other error messages in the exception.log file.

     

    "Error","Thread-34","12/17/25","08:07:05","","Due to security reasons, oracle.sql.converter.CharacterConverter1Byte is blocked for deserialization. Add the class/package in the file cfusion/lib/serialfilter.txt to override the behavior and allow deserialization."
    coldfusion.server.DeserializationException: Due to security reasons, oracle.sql.converter.CharacterConverter1Byte is blocked for deserialization. Add the class/package in the file cfusion/lib/serialfilter.txt to override the behavior and allow deserialization.
    at coldfusion.server.SerializationFilterManager$LoggingObjectInputFilterHandler.invoke(SerializationFilterManager.java:93)

     

    As per the install article i've added the below setting in the JVM and restarted the CF Services

    -Dcoldfusion.deserialization.safeguard.enabled=false

     

    And that has solved the issue.

    However, the other servers did not feed that JVM setting. Going to have to look at what the difference is there!

    1 reply

    Charlie Arehart
    Community Expert
    Charlie ArehartCommunity Expert
    Community Expert
    December 17, 2025

    An odd one, indeed, Nick. And perhaps someone will immediately recognize a known issue and suggest a solution.

     

    Otherwise, before we may start going down many rabbit holes (or folks here start suggesting you just try reinstalling things), I have a couple of potentially important diagnostic questions. 

     

    1) Let's focus first on your saying you cleared the felix-cache.

     

    If you did that for the cfusion/bin folder, please confirm whether you might have more than one cf instance installed. That's a feature option with the CF Enterprise, developer, and trial editions (but not CF Standard). If you do, you must remove the felix-cache also for the bin folder of THAT instance.

     

    There are several ways to confirm if you're running multiple instances. Let's see first if you already understand what I'm asking. 

     

    2) Finally, have you confirmed there were 0 errors in the update install log, and that all package updates were tracked as downloaded successfully (at the bottom of that update log) and then uninstalled and started successfully (as tracked in the coldfusion-out.log, on the first startup after the cf update)? Again, I could offer more specific details if needed.

     

    Let's hear your initial thoughts in reply. 

    /Charlie (troubleshooter, carehart. org)
    nickb1533966
    nickb1533966Author
    December 17, 2025

    Hi Charlie!

     

    Many thanks for your reply.

     

    1) This particular server is a Developer Edition of CF2023 (we have others that are Standard Edition and another Developer where this issue isn't occurring). It's a single instance of CF and we have just 1 IIS Website configured to use it. Our install is on the D:\ so the felix cache I deleted was in D:\ColdFusion2023\cfusion\bin\felix-cache the files of course have since been recreated when I restarted CF

     

    2) The install does appear to have been successful. The log file reports.

     

    __________________________________________________________________________

    Installed Feature(s) Standard, J2EE of Adobe ColdFusion 2023 Update 17

    Install Begin: DECEMBER 17, 2025 7:54:27 AM GMT
    Install End: DECEMBER 17, 2025 8:01:49 AM GMT

    Installed by InstallAnywhere 23.0 Premier Build 6921 (Designer/Runtime: Private Hotfix B)


    User Interactions
    -----------------


    #Choose ColdFusion 2023 Home directory
    #--------------------------------------
    USER_INSTALL_DIR=D:\\ColdFusion2023

    #Install
    #-------
    -fileOverwrite_D\:\\ColdFusion2023\\notice.txt=Yes

    Summary
    -------

    Installation: Successful.

    603 Successes
    0 Warnings
    0 NonFatalErrors
    0 FatalErrors

     

    One of the servers we have working successful the install log file looks the same with 603 successes.

     

    The coldfusion.out file looks to have the uninstall / successful start as below.

     

    Dec 17, 2025 07:53:17 AM Information [Thread-27] - ColdFusion stopped
    Dec 17, 2025 08:01:51 AM Information [main] - Starting logging...
    Dec 17, 2025 08:01:51 AM Information [main] - [SerializationFilterManager] Successfully set ObjectInputFilter using Java 9+ standard API (java.io) with logging
    Dec 17, 2025 08:01:51 AM Information [main] - Starting SerializationFilter...
    Dec 17, 2025 08:01:51 AM Information [main] - Starting license...
    Dec 17, 2025 08:01:53 AM Information [main] - Developer Edition enabled
    Dec 17, 2025 08:01:59 AM Information [main] - Starting crypto...
    Dec 17, 2025 08:01:59 AM Information [main] - Installed JSafe JCE provider: Version 6.21 Crypto-J 6.2.1, EMC Corporation. JsafeJCE Security Provider (implements RSA, DSA, ECDSA, Diffie-Hellman, ECDH, AES, DES, Triple DES, DESX, RC2, RC4, RC5, PBE, MD2, MD5, RIPEMD160, SHA1, SHA224, SHA256, SHA384, SHA512, HMAC-MD5, HMAC-RIPEMD160, HMAC-SHA1, HMAC-SHA224, HMAC-SHA256, HMAC-SHA384, HMAC-SHA512, HMACDRBG, HASHDRBG, CTRDRBG, FIPS186PRNG, SHA1PRNG, MD5PRNG; RFC 3394, RFC 5649 AES Key Wrap; X.509 CertificateFactory; PKCS12, PKCS15 KeyStore; X.509V1, PKIX, PKIX-SuiteB, PKIX-SuiteBTLS CertPathValidators; X.509V1, PKIX, PKIX-SuiteB, PKIX-SuiteBTLS CertPathBuilders; LDAP, Collection CertStores)
    Dec 17, 2025 08:01:59 AM Information [main] - Starting security...
    Dec 17, 2025 08:01:59 AM Information [main] - Starting scheduler...
    Dec 17, 2025 08:02:00 AM Information [main] - Starting WatchService...
    Dec 17, 2025 08:02:00 AM Information [main] - Starting runtime...
    Dec 17, 2025 08:02:01 AM Information [main] - Starting client...
    Dec 17, 2025 08:02:01 AM Information [main] - Starting archive...
    Dec 17, 2025 08:02:01 AM Information [main] - Starting CloudConfig...
    Dec 17, 2025 08:02:01 AM Information [main] - Uninstalling the package administrator
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    Dec 17, 2025 08:02:02 AM Information [main] - Uninstalling the package SparseBitSet-1.2
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    Dec 17, 2025 08:02:17 AM Information [main] - Starting GraphQLConfig...
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    Dec 17, 2025 08:02:19 AM Information [main] - Starting rest...
    Dec 17, 2025 08:02:19 AM Information [main] - Starting registry...
    Dec 17, 2025 08:02:19 AM Information [main] - Package adminapi started...
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    Dec 17, 2025 08:02:27 AM Information [main] - Event Gateway Disabled.
    Dec 17, 2025 08:02:27 AM Information [main] - Package dotnet started...
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    Dec 17, 2025 08:02:42 AM Information [pool-51-thread-1] - WebSocket Server listens on port: 8585
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    Dec 17, 2025 08:02:46 AM Information [main] - Package odbc started...
    Dec 17, 2025 08:02:46 AM Information [main] - Starting sql...
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    Dec 17, 2025 08:02:46 AM Information [main] - Package ftp started...
    Dec 17, 2025 08:02:46 AM Information [main] - Package awssqs started...
    Dec 17, 2025 08:02:46 AM Information [main] - Package awssns started...
    Dec 17, 2025 08:02:49 AM Information [Thread-21] - PDFg service manager http://127.0.0.1:8995/PDFgServlet/ registered.
    Dec 17, 2025 08:02:51 AM Information [main] - Package azureservicebus started...
    Dec 17, 2025 08:02:51 AM Information [main] - Package awsdynamodb started...
    Dec 17, 2025 08:02:56 AM Information [main] - Package gcpfirestore started...
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    Dec 17, 2025 08:02:57 AM Information [main] - Package report started...
    Dec 17, 2025 08:02:58 AM Information [main] - Package exchange started...
    Dec 17, 2025 08:02:58 AM Information [main] - Package sharepoint started...
    Dec 17, 2025 08:03:00 AM Information [main] - Package graphqlclient started...
    Dec 17, 2025 08:03:00 AM Information [main] - ColdFusion started
    Dec 17, 2025 08:03:00 AM Information [main] - ColdFusion: application services are now available
    Dec 17, 2025 08:03:00 WARN [main] - Unable to determine dialect of the StAX implementation at jar:file:/D:/ColdFusion2023/cfusion/lib/bundleaxis/wstx-asl-3.2.9.jar!/
    Dec 17, 2025 08:03:00 AM Warning [main] - Unable to determine dialect of the StAX implementation at jar:file:/D:/ColdFusion2023/cfusion/lib/bundleaxis/wstx-asl-3.2.9.jar!/

     

    Regards Nick.

    nickb1533966
    nickb1533966AuthorCorrect answer
    December 17, 2025

    Sooooooo! Did some further digging! There are other error messages in the exception.log file.

     

    "Error","Thread-34","12/17/25","08:07:05","","Due to security reasons, oracle.sql.converter.CharacterConverter1Byte is blocked for deserialization. Add the class/package in the file cfusion/lib/serialfilter.txt to override the behavior and allow deserialization."
    coldfusion.server.DeserializationException: Due to security reasons, oracle.sql.converter.CharacterConverter1Byte is blocked for deserialization. Add the class/package in the file cfusion/lib/serialfilter.txt to override the behavior and allow deserialization.
    at coldfusion.server.SerializationFilterManager$LoggingObjectInputFilterHandler.invoke(SerializationFilterManager.java:93)

     

    As per the install article i've added the below setting in the JVM and restarted the CF Services

    -Dcoldfusion.deserialization.safeguard.enabled=false

     

    And that has solved the issue.

    However, the other servers did not feed that JVM setting. Going to have to look at what the difference is there!

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