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2026-11-06 21:43:48 +05:30
parent ecceaa8b32
commit f7b6c1efca
33 changed files with 1258 additions and 0 deletions
@@ -0,0 +1,48 @@
+$ java -cp netty-4.1.140.Final NettyProbe     (JDK 25 default)
+WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
+WARNING: sun.misc.Unsafe::allocateMemory has been called by io.netty.util.internal.PlatformDependent0$2 (file:<lib>/netty-common-4.1.140.Final.jar)
+WARNING: Please consider reporting this to the maintainers of class io.netty.util.internal.PlatformDependent0$2
+WARNING: sun.misc.Unsafe::allocateMemory will be removed in a future release
+netty sees Unsafe: true
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=allow -cp netty-4.1.140.Final NettyProbe
+netty sees Unsafe: true
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=deny -cp netty-4.1.140.Final NettyProbe
+netty sees Unsafe: false
+direct=true hasMemoryAddress=false readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=debug -cp netty-4.1.140.Final NettyProbe
+netty sees Unsafe: false
+direct=true hasMemoryAddress=false readLong=cafebabe
+done
+
+$ java -cp netty-4.2.20.Final NettyProbe     (JDK 25 default)
+netty sees Unsafe: false
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=allow -cp netty-4.2.20.Final NettyProbe
+netty sees Unsafe: true
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=deny -cp netty-4.2.20.Final NettyProbe
+netty sees Unsafe: false
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ java --sun-misc-unsafe-memory-access=debug -cp netty-4.2.20.Final NettyProbe
+netty sees Unsafe: false
+direct=true hasMemoryAddress=true readLong=cafebabe
+done
+
+$ unzip -p netty-common-4.1.140.Final.jar io/netty/util/internal/PlatformDependent0.class | grep -a -o -F 'sun.misc.unsafe.memory.access'
+sun.misc.unsafe.memory.access
+$ unzip -p netty-common-4.2.20.Final.jar io/netty/util/internal/PlatformDependent0.class | grep -a -o -F 'sun.misc.unsafe.memory.access'
+sun.misc.unsafe.memory.access