HotswapProjects/HotswapAgent

java.lang.NoSuchFieldException: ucp error while running with JetBrainsRuntime 17

Closed this issue · 9 comments

pankajharness commented

I am running hotswap agent with jbr sdk 17 but getting below exception while adding extraClasspath in hotswap-agent.properties.
Currently I am using latest snapshot release of hotswap-agent.
Same thing is working in trava jdk 11.

HOTSWAP AGENT: 19:17:45.107 INFO (org.hotswap.agent.HotswapAgent) - Loading Hotswap agent {unkown} - unlimited runtime class redefinition.
HOTSWAP AGENT: 19:17:45.414 ERROR (org.hotswap.agent.util.classloader.URLClassPathHelper) - Unable to add extraClassPath URLs [file:/Users/pankajkumar/.bazel_runner/output_base/execroot/harness_monorepo/bazel-out/k8-fastbuild/bin/120-ng-manager/module.runfiles/harness_monorepo/] to classLoader jdk.internal.loader.ClassLoaders$AppClassLoader@5bc2b487
java.lang.NoSuchFieldException: ucp
	at java.base/java.lang.Class.getDeclaredField(Class.java:2610)
	at org.hotswap.agent.util.classloader.URLClassPathHelper.getUcpField(URLClassPathHelper.java:195)
	at org.hotswap.agent.util.classloader.URLClassPathHelper.prependClassPath(URLClassPathHelper.java:84)
	at org.hotswap.agent.config.PluginConfiguration.initExtraClassPath(PluginConfiguration.java:221)
	at org.hotswap.agent.config.PluginConfiguration.init(PluginConfiguration.java:193)
	at org.hotswap.agent.config.PluginConfiguration.<init>(PluginConfiguration.java:89)
	at org.hotswap.agent.config.PluginConfiguration.<init>(PluginConfiguration.java:80)
	at org.hotswap.agent.config.PluginConfiguration.<init>(PluginConfiguration.java:76)
	at org.hotswap.agent.config.PluginManager.init(PluginManager.java:129)
	at org.hotswap.agent.HotswapAgent.premain(HotswapAgent.java:69)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:491)
	at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:503)

I have already added these 2 lines in my jvm options

--add-opens java.base/jdk.internal.loader=ALL-UNNAMED
--add-opens java.base/java.net=ALL-UNNAMED
skybber commented

Could you try last SNAPSHOT? It should be fixed now.

pankajharness commented

That is resolved but now I am getting different issue and application is crashing after this:

Exception in thread "main" java.lang.UnsatisfiedLinkError: /Library/Java/JavaVirtualMachines/jbrsdk-17.0.11-osx-aarch64-b1312.2/Contents/Home/lib/libmanagement.dylib: dlopen(/Library/Java/JavaVirtualMachines/jbrsdk-17.0.11-osx-aarch64-b1312.2/Contents/Home/lib/libmanagement.dylib, 0x0001): tried: '/Library/Java/JavaVirtualMachines/jbrsdk-17.0.11-osx-aarch64-b1312.2/Contents/Home/lib/libmanagement.dylib' (open() failed with errno=24), '/System/Volumes/Preboot/Cryptexes/OS/Library/Java/JavaVirtualMachines/jbrsdk-17.0.11-osx-aarch64-b1312.2/Contents/Home/lib/libmanagement.dylib' (no such file), '/Library/Java/JavaVirtualMachines/jbrsdk-17.0.11-osx-aarch64-b1312.2/Contents/Home/lib/libmanagement.dylib' (open() failed with errno=24)
        at java.base/jdk.internal.loader.NativeLibraries.load(Native Method)
        at java.base/jdk.internal.loader.NativeLibraries$NativeLibraryImpl.open(NativeLibraries.java:388)
        at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:232)
        at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:174)
        at java.base/jdk.internal.loader.NativeLibraries.findFromPaths(NativeLibraries.java:315)
        at java.base/jdk.internal.loader.NativeLibraries.loadLibrary(NativeLibraries.java:285)
        at java.base/java.lang.ClassLoader.loadLibrary(ClassLoader.java:2403)
        at java.base/java.lang.Runtime.loadLibrary0(Runtime.java:818)
        at java.base/java.lang.System.loadLibrary(System.java:1993)
        at java.management/java.lang.management.ManagementFactory.lambda$static$8(ManagementFactory.java:1016)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
        at java.management/java.lang.management.ManagementFactory.<clinit>(ManagementFactory.java:1015)
        at com.codahale.metrics.jvm.JvmAttributeGaugeSet.<init>(JvmAttributeGaugeSet.java:24)
        at io.dropwizard.setup.Bootstrap.registerMetrics(Bootstrap.java:84)
        at io.dropwizard.Application.run(Application.java:90)
        at io.harness.ng.modules.NextGenApplication.main(NextGenApplication.java:373)
skybber commented

It seems like problem in your OS configuration - too much open files

pankajharness commented

I have already tried adding this in my .zprofile and .bash_profile file

ulimit -n unlimited

It is happening only when I use hotswap agent. And add extraclasspath. But it is happening with JetBrainsRuntime 17 only,
not with trava jdk 11.

pankajharness commented

The issue was resolved by using these commands

launchctl limit maxfiles 100000 unlimited
ulimit -n 100000

And this jvm option:

-XX:-MaxFDLimit

Hotswapping didn't work though with JetBrainsRuntime 17.

  • 👍1
pankajharness commented

@skybber is autoHotswapping even possible with JetBrainsRuntime 17 without using intellij degugger, using autoHotswap=true?

skybber commented

Yes, it is working.

pankajharness commented

With bazel also?

skybber commented

I have no experience with bazel :)

  • 👍1