[
https://issues.apache.org/jira/browse/SSHD-975?focusedWorklogId=417961&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-417961
]
ASF GitHub Bot logged work on SSHD-975:
---------------------------------------
Author: ASF GitHub Bot
Created on: 07/Apr/20 20:32
Start Date: 07/Apr/20 20:32
Worklog Time Spent: 10m
Work Description: lgoldstein commented on issue #118: [SSHD-975] Use
AbstractFactoryManager's classloader for proxies
URL: https://github.com/apache/mina-sshd/pull/118#issuecomment-610605866
>> Agreed, think we should just use the method without ClassLoader argument
and instantiate the proxy in the classloader where the interface lives -- it's
the simplest and guaranteed to work. What do you think?
My thinking exactly - let me know if it fixes your problem. If so I will be
more than happy to merge it to our _master_ branch. Please make sure that `mvn
clean install` succeeds on the entire project.
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Issue Time Tracking
-------------------
Worklog Id: (was: 417961)
Time Spent: 0.5h (was: 20m)
> SshClient subclasses fail in OSGi environment
> ---------------------------------------------
>
> Key: SSHD-975
> URL: https://issues.apache.org/jira/browse/SSHD-975
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.3.0, 2.4.0
> Reporter: Robert Varga
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Attempting to subclass SshClient and use it in OSGi environment can fail with
> the following:
> {noformat}
> 2020-04-07T07:46:19,968 | WARN | nioEventLoopGroupCloseable-3-1 |
> ChannelInitializer | 64 - io.netty.common - 4.1.45.Final |
> Failed to initialize a channel. Closing: [id: 0xfedebbf7]
> java.lang.ExceptionInInitializerError: null
> at
> org.opendaylight.netconf.client.SshClientChannelInitializer.initialize(SshClientChannelInitializer.java:43)
> ~[402:org.opendaylight.netconf.client:1.9.0.SNAPSHOT]
> at
> org.opendaylight.netconf.nettyutil.ReconnectPromise.lambda$connect$0(ReconnectPromise.java:54)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]
> at
> org.opendaylight.netconf.nettyutil.AbstractNetconfDispatcher$3.initChannel(AbstractNetconfDispatcher.java:206)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]
> at
> org.opendaylight.netconf.nettyutil.AbstractNetconfDispatcher$3.initChannel(AbstractNetconfDispatcher.java:203)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]
> at
> io.netty.channel.ChannelInitializer.initChannel(ChannelInitializer.java:129)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.ChannelInitializer.handlerAdded(ChannelInitializer.java:112)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext.callHandlerAdded(AbstractChannelHandlerContext.java:956)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:609)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.DefaultChannelPipeline.access$100(DefaultChannelPipeline.java:46)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.DefaultChannelPipeline$PendingHandlerAddedTask.execute(DefaultChannelPipeline.java:1463)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.DefaultChannelPipeline.callHandlerAddedForAllHandlers(DefaultChannelPipeline.java:1115)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.DefaultChannelPipeline.invokeHandlerAddedIfNeeded(DefaultChannelPipeline.java:650)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:502)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe.access$200(AbstractChannel.java:417)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:474)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
> [64:io.netty.common:4.1.45.Final]
> at
> io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
> [64:io.netty.common:4.1.45.Final]
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
> [67:io.netty.transport:4.1.45.Final]
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
> [64:io.netty.common:4.1.45.Final]
> at
> io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> [64:io.netty.common:4.1.45.Final]
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> [64:io.netty.common:4.1.45.Final]
> at java.lang.Thread.run(Thread.java:834) [?:?]
> Caused by: java.lang.IllegalArgumentException:
> org.apache.sshd.common.forward.PortForwardingEventListener referenced from a
> method is not visible from class loader
> at java.lang.reflect.Proxy$ProxyBuilder.ensureVisible(Proxy.java:858)
> ~[?:?]
> at
> java.lang.reflect.Proxy$ProxyBuilder.validateProxyInterfaces(Proxy.java:681)
> ~[?:?]
> at java.lang.reflect.Proxy$ProxyBuilder.<init>(Proxy.java:627) ~[?:?]
> at java.lang.reflect.Proxy$ProxyBuilder.<init>(Proxy.java:635) ~[?:?]
> at java.lang.reflect.Proxy.lambda$getProxyConstructor$0(Proxy.java:415)
> ~[?:?]
> at
> jdk.internal.loader.AbstractClassLoaderValue$Memoizer.get(AbstractClassLoaderValue.java:329)
> ~[?:?]
> at
> jdk.internal.loader.AbstractClassLoaderValue.computeIfAbsent(AbstractClassLoaderValue.java:205)
> ~[?:?]
> at java.lang.reflect.Proxy.getProxyConstructor(Proxy.java:413) ~[?:?]
> at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:1006) ~[?:?]
> at
> org.apache.sshd.common.util.EventListenerUtils.proxyWrapper(EventListenerUtils.java:193)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at
> org.apache.sshd.common.helpers.AbstractFactoryManager.<init>(AbstractFactoryManager.java:107)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at org.apache.sshd.client.SshClient.<init>(SshClient.java:189)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at
> org.opendaylight.netconf.nettyutil.handler.ssh.client.NetconfSshClient.<init>(NetconfSshClient.java:19)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]
> at org.apache.sshd.common.BaseBuilder.build(BaseBuilder.java:256)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at org.apache.sshd.client.ClientBuilder.build(ClientBuilder.java:183)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at org.apache.sshd.client.ClientBuilder.build(ClientBuilder.java:51)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at org.apache.sshd.common.BaseBuilder.build(BaseBuilder.java:276)
> ~[144:org.apache.sshd.osgi:2.3.0]
> at
> org.opendaylight.netconf.nettyutil.handler.ssh.client.NetconfClientBuilder.build(NetconfClientBuilder.java:23)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]
> at
> org.opendaylight.netconf.nettyutil.handler.ssh.client.AsyncSshHandler.<clinit>(AsyncSshHandler.java:45)
> ~[420:org.opendaylight.netconf.netty-util:1.9.0.SNAPSHOT]{noformat}
>
>
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