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javademos/docs/output/60-removed-options.txt

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# JVM options that JDK 27 removed or renamed. Each runs 'java <option> -version' on 26 and on 27.
=== -noverify
JDK 26:
OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.
OpenJDK 64-Bit Server VM Corretto-26.0.2.11.1 (build 26.0.2.1+11-FR, mixed mode, sharing)
JDK 27:
Unrecognized option: -noverify
Error: Could not create the Java Virtual Machine.
=== -Xverify:none
JDK 26:
OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.
OpenJDK 64-Bit Server VM Corretto-26.0.2.11.1 (build 26.0.2.1+11-FR, mixed mode, sharing)
JDK 27:
Unrecognized verification option: -Xverify:none
Error: Could not create the Java Virtual Machine.
=== -noclassgc
JDK 26:
Warning: -noclassgc option is deprecated and may be removed in a future release.
OpenJDK 64-Bit Server VM Corretto-26.0.2.11.1 (build 26.0.2.1+11-FR, mixed mode, sharing)
JDK 27:
Unrecognized option: -noclassgc
Error: Could not create the Java Virtual Machine.
=== -XX:+UseCompressedClassPointers
JDK 26:
OpenJDK 64-Bit Server VM warning: Option UseCompressedClassPointers was deprecated in version 25.0 and will likely be removed in a future release.
OpenJDK 64-Bit Server VM Corretto-26.0.2.11.1 (build 26.0.2.1+11-FR, mixed mode, sharing)
JDK 27:
OpenJDK 64-Bit Server VM warning: Ignoring option UseCompressedClassPointers; support was removed in 27.0
OpenJDK 64-Bit Server VM Corretto-27.0.0.35.1 (build 27+35-FR, mixed mode, sharing)
=== -XX:InitiatingHeapOccupancyPercent=40
JDK 26:
OpenJDK 64-Bit Server VM Corretto-26.0.2.11.1 (build 26.0.2.1+11-FR, mixed mode, sharing)
JDK 27:
OpenJDK 64-Bit Server VM warning: Option InitiatingHeapOccupancyPercent was deprecated in version 27.0 and will likely be removed in a future release. Use option G1IHOP instead.
OpenJDK 64-Bit Server VM Corretto-27.0.0.35.1 (build 27+35-FR, mixed mode, sharing)
=== -XX:G1IHOP=40
JDK 26:
Unrecognized VM option 'G1IHOP=40'
Error: Could not create the Java Virtual Machine.
JDK 27:
OpenJDK 64-Bit Server VM Corretto-27.0.0.35.1 (build 27+35-FR, mixed mode, sharing)
=== -XX:+UnlockExperimentalVMOptions -XX:+UseGraalJIT (JVMCI and the Graal JIT hook were removed in 27)
JDK 26:
Cannot use JVMCI compiler: JVMCI compiler 'graal' specified by jvmci.Compiler not found
JDK 27:
Unrecognized VM option 'UseGraalJIT'
Error: Could not create the Java Virtual Machine.