java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
See original GitHub issueHi all When I run my Ktor application with gradle run then I’ve got the following exception:
19:21:11.795 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
19:21:11.810 [main] DEBUG io.netty.util.internal.PlatformDependent0 - -Dio.netty.noUnsafe: false
19:21:11.810 [main] DEBUG io.netty.util.internal.PlatformDependent0 - Java version: 11
19:21:11.811 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
19:21:11.812 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
19:21:11.812 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
19:21:11.814 [main] DEBUG io.netty.util.internal.PlatformDependent0 - direct buffer constructor: unavailable
java.lang.UnsupportedOperationException: Reflective setAccessible(true) disabled
at io.netty.util.internal.ReflectionUtil.trySetAccessible(ReflectionUtil.java:31)
at io.netty.util.internal.PlatformDependent0$4.run(PlatformDependent0.java:225)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:219)
at io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:273)
at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92)
at io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:225)
at io.netty.channel.epoll.Native.<clinit>(Native.java:57)
at io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:39)
at io.ktor.server.netty.EventLoopGroupProxy$Companion.create(NettyApplicationEngine.kt:189)
at io.ktor.server.netty.NettyApplicationEngine.<init>(NettyApplicationEngine.kt:74)
at io.ktor.server.netty.EngineMain.main(EngineMain.kt:22)
19:21:11.814 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: available, true
19:21:11.815 [main] DEBUG io.netty.util.internal.PlatformDependent0 - jdk.internal.misc.Unsafe.allocateUninitializedArray(int): unavailable
java.lang.IllegalAccessException: class io.netty.util.internal.PlatformDependent0$6 cannot access class jdk.internal.misc.Unsafe (in module java.base) because module java.base does not export jdk.internal.misc to unnamed module @557caf28
at java.base/jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:361)
at java.base/java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:591)
at java.base/java.lang.reflect.Method.invoke(Method.java:558)
at io.netty.util.internal.PlatformDependent0$6.run(PlatformDependent0.java:335)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at io.netty.util.internal.PlatformDependent0.<clinit>(PlatformDependent0.java:326)
at io.netty.util.internal.PlatformDependent.isAndroid(PlatformDependent.java:273)
at io.netty.util.internal.PlatformDependent.<clinit>(PlatformDependent.java:92)
at io.netty.channel.epoll.Native.loadNativeLibrary(Native.java:225)
at io.netty.channel.epoll.Native.<clinit>(Native.java:57)
at io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:39)
at io.ktor.server.netty.EventLoopGroupProxy$Companion.create(NettyApplicationEngine.kt:189)
at io.ktor.server.netty.NettyApplicationEngine.<init>(NettyApplicationEngine.kt:74)
at io.ktor.server.netty.EngineMain.main(EngineMain.kt:22)
the content of build.gradle.kts file
plugins {
application
kotlin("jvm") version "1.3.61"
}
group = "io.flatmap"
version = "1.0-SNAPSHOT"
val ktor_version = "1.3.0"
repositories {
mavenCentral()
jcenter()
}
dependencies {
implementation(kotlin("stdlib-jdk8"))
compile("io.ktor:ktor-server-netty:$ktor_version")
compile("io.ktor:ktor-server-core:$ktor_version")
compile("ch.qos.logback:logback-classic:1.2.3")
testCompile(group = "junit", name = "junit", version = "4.12")
}
tasks {
compileKotlin {
kotlinOptions.jvmTarget = "11"
}
compileTestKotlin {
kotlinOptions.jvmTarget = "11"
}
}
application {
mainClassName = "io.ktor.server.netty.EngineMain"
}
I am using Zulu OpenJDK 11:
java --version
openjdk 11.0.6 2020-01-14 LTS
OpenJDK Runtime Environment Zulu11.37+17-CA (build 11.0.6+10-LTS)
OpenJDK 64-Bit Server VM Zulu11.37+17-CA (build 11.0.6+10-LTS, mixed mode)
I thought, this is solved through https://github.com/ktorio/ktor/issues/1190.
Thanks
Issue Analytics
- State:
- Created 4 years ago
- Comments:10 (2 by maintainers)
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This exact same issue occurs for me on jdk11 but not jdk8.
https://github.com/netty/netty/issues/7817