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  • 1.  IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of product 5770JV1.

    Posted 09/11/25 12:38 PM

    IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of  product 5770JV1.

    https://www.ibm.com/support/pages/node/6437873



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    Robert Berendt IBMChampion
    Business Systems Analyst, Lead
    Dekko
    Fort Wayne
    ------------------------------


  • 2.  RE: IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of product 5770JV1.

    Posted 06/22/26 03:48 AM

    Java 21 (64-bit) Applications Fail After Updating IBM i 7.5 Java Group PTF SF99955 to Levels 19 or 20

    Hi Robert, on V7R5M0 there is a big problem with Java 21 option and i solved installing the 20 level of PTF group and the PTF solve the lock problem.

    After updating to IBM i 7.5 Java Group PTF SF99955 level 19 or 20, IBM Java Development Kit (JDK) 21 64‑bit VMs on IBM i 7.5 OS upgraded to 21.0.10+7 may begin to fail with the error: Unable to create Java Virtual Machine.

    https://www.ibm.com/support/pages/node/7275011?myns=swgother&mynp=OCSWG60&mync=E&cm_sp=swgother-_-OCSWG60-_-E

    Have a good day. 



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    Luca Maurizio Verzicco
    IBMi Service and PreSales Manager
    S2E - Solution to Enterprise
    Milano - Italy
    +39 380 6570039
    ------------------------------



  • 3.  RE: IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of product 5770JV1.

    Posted 06/22/26 03:53 AM

    [20/05/26 14.23.45:851 CEST] 0000028f com.ibm.ws.webcontainer.util.ApplicationErrorUtils          

    E SRVE0777E: Eccezione generata dalla classe dell'classe 'com.ibm.jsse2.f.a:52'

    javax.net.ssl.SSLException: java.lang.RuntimeException: Could not generate ECDHEMLKEM keypair  or Unable to create Java Virtual Machine error. 



    ------------------------------
    Luca Maurizio Verzicco
    IBMi Service and PreSales Manager
    S2E - Solution to Enterprise
    Milano - Italy
    +39 380 6570039
    ------------------------------



  • 4.  RE: IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of product 5770JV1.

    Posted 06/22/26 07:11 AM

    Glad to hear that the latest group fixed that issue.



    ------------------------------
    Robert Berendt IBMChampion
    Business Systems Analyst, Lead
    Dekko
    Fort Wayne
    ------------------------------