This is the debug log I'm having in my application, now executed under
Java21 (compiled under Java11) with netty 4.1.60
2025-04-24 14:29:09,085 main DEBUG [i.n.u.i.PlatformDependent0:897]
javaVersion0 | Java version: 21
2025-04-24 14:29:09,086 main DEBUG [i.n.u.i.PlatformDependent0:130]
<clinit> | sun.misc.Unsafe.theUnsafe: available
2025-04-24 14:29:09,086 main DEBUG [i.n.u.i.PlatformDependent0:154]
<clinit> | sun.misc.Unsafe.copyMemory: available
2025-04-24 14:29:09,087 main DEBUG [i.n.u.i.PlatformDependent0:192]
<clinit> | java.nio.Buffer.address: available
2025-04-24 14:29:09,088 main DEBUG [i.n.u.i.PlatformDependent0:266]
<clinit> | direct buffer constructor: unavailable
java.lang.NoSuchMethodException: java.nio.DirectByteBuffer.<init>(long,int)
at java.base/java.lang.Class.getConstructor0(Class.java:3761)
at java.base/java.lang.Class.getDeclaredConstructor(Class.java:2930)
at
io.netty.util.internal.PlatformDependent0$4.run(PlatformDependent0.java:237)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:319)
at
io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:232)
at
io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:294)
at
io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:93)
at io.netty.util.AsciiString.<init>(AsciiString.java:223)
at io.netty.util.AsciiString.<init>(AsciiString.java:210)
at io.netty.util.AsciiString.cached(AsciiString.java:1401)
at io.netty.util.AsciiString.<clinit>(AsciiString.java:48)
at io.grpc.netty.Utils.<clinit>(Utils.java:72)
at
io.grpc.netty.NettyChannelBuilder.<clinit>(NettyChannelBuilder.java:74)
at
io.grpc.netty.NettyChannelProvider.builderForAddress(NettyChannelProvider.java:37)
at
io.grpc.netty.NettyChannelProvider.builderForAddress(NettyChannelProvider.java:23)
at
io.grpc.ManagedChannelBuilder.forAddress(ManagedChannelBuilder.java:39)
at
com.telefonica.m2m.common.grpc.client.GrpcConnection.<init>(GrpcConnection.java:31)
at
com.telefonica.m2m.common.grpc.client.GrpcConnection.<init>(GrpcConnection.java:25)
at
com.ericsson.m2m.components.udc.impl.client.UdcGrpcConnection.<init>(UdcGrpcConnection.java:21)
at
com.ericsson.m2m.components.udc.impl.client.UdcGrpcClient.createConnections(UdcGrpcClient.java:74)
at
com.ericsson.m2m.components.udc.impl.client.UdcGrpcClient.build(UdcGrpcClient.java:54)
at
com.ericsson.m2m.planner.server.PlannerMain.initialize(PlannerMain.java:1279)
at
com.ericsson.m2m.planner.server.PlannerMain.initializaPlanner(PlannerMain.java:3060)
at
com.ericsson.m2m.planner.server.PlannerMain.main(PlannerMain.java:1202)
2025-04-24 14:29:09,089 main DEBUG [i.n.u.i.PlatformDependent0:331]
<clinit> | java.nio.Bits.unaligned: available, true
2025-04-24 14:29:09,094 main DEBUG [i.n.u.i.PlatformDependent0:393]
<clinit> | jdk.internal.misc.Unsafe.allocateUninitializedArray(int):
available
2025-04-24 14:29:09,094 main DEBUG [i.n.u.i.PlatformDependent0:403]
<clinit> | java.nio.DirectByteBuffer.<init>(long, int): unavailable
2025-04-24 14:29:09,094 main DEBUG [i.n.u.i.PlatformDependent:1080]
unsafeUnavailabilityCause0 | sun.misc.Unsafe: available
With this parameters in the launch configuration
"--add-opens java.base/java.lang=ALL-UNNAMED --add-opens
java.base/sun.security.util=ALL-UNNAMED --add-opens
java.base/sun.security.util.math=ALL-UNNAMED --add-opens
java.base/jdk.internal.misc=ALL-UNNAMED --add-opens
java.base/java.util=ALL-UNNAMED --add-opens
java.base/java.lang.reflect=ALL-UNNAMED --add-opens
java.base/java.io=ALL-UNNAMED --add-opens
java.management/javax.management.openmbean=ALL-UNNAMED --add-opens
java.management/javax.management=ALL-UNNAMED --add-opens
java.xml/com.sun.org.apache.xerces.internal.impl.dv.util=ALL-UNNAMED
--add-opens java.management/com.sun.jmx.remote.util=ALL-UNNAMED --add-opens
java.base/sun.security.action=ALL-UNNAMED
-Dio.netty.tryReflectionSetAccessible=true"
Is something I can do to avoid this problem ?
Thanks
El jueves, 27 de marzo de 2025 a las 23:24:29 UTC+1, Oscar Besga escribió:
> Hi
>
> We are planning to migrate our project from Java8 to Java11/17, while
> using netty (version 4.1.60)
>
> We see that in Java8, 'direct buffer constructor' is available, where in
> Java11 is not.
>
> We don't know if having this function disabled can impact performance, do
> you have any experience in this situation ?
>
> Thanks
>
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