IV19959: NON-ATOMIC VARIABLE-LENGTH ARRAYCOPIES
Closed as program error.
Error Message: N/A . Stack Trace: N/A .
This issue can be avoided using the -Xjit:disableArraycopyOpts option. This option may cause a noticeable performance degradation.
The inlined sequence for variable-length non-byte arraycopies generated by the Java JIT Compiler includes a single-byte MVC (move character) instruction to handle residual (<256 bytes) elements. As a result of this single byte copy, a partially copied element value may be visible to other threads concurrently examining that array. This issue only impacts JDKs on Linux on Z and zOS.
This defect will be fixed in: 7.0.0 SR1 6.0.1 SR2 . The JVM has been updated to remove the single-byte MVC instruction and generate an atomic sequence for all reference arraycopies.
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APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
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