[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.
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Luca Maurizio Verzicco
IBMi Service and PreSales Manager
S2E - Solution to Enterprise
Milano - Italy
+39 380 6570039
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Original Message:
Sent: Mon June 22, 2026 03:48 AM
From: Luca Maurizio Verzicco
Subject: IBM Technology for Java 21 is released on IBM i 7.5 as option 21 (Java 21 64bit) of product 5770JV1.
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
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