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  1. Jenkins
  2. JENKINS-46386

Agent sometimes fails to launch in custom cloud provider

      (previously posted about this on mailing list https://groups.google.com/forum/#!topic/jenkinsci-dev/Zte6nExHM8w was encouraged to file a ticket also)

      I'm developing a cloud provider plugin and have run into an intermittent issue with launching agents. In the computer launch log I get this series of errors:

       

      openjdk full version "1.8.0_141-b16"
       Copying slave.jar
       Launching slave agent: java -jar /tmp/slave.jar -workDir .
       Both error and output logs will be printed to ./remoting
       <===[JENKINS REMOTING CAPACITY]===>Slave.jar version: 3.10
       This is a Unix agent
       Evacuated stdout
       java.io.IOException: Remote call on testnode failed
       at hudson.remoting.Channel.call(Channel.java:847)
       at org.jenkinsci.modules.slave_installer.impl.ComputerListenerImpl.onOnline(ComputerListenerImpl.java:32)
       at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:582)
       at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:390)
       at sfoster.jenkins.plugins.onecloud.OneComputerLauncher.launch(OneComputerLauncher.java:141)
       at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:262)
       at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
       Caused by: java.lang.LinkageError: Failed to load jenkins.util.SystemProperties
       at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:385)
       at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:293)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
       at hudson.FilePath.<clinit>(FilePath.java:2363)
       at sun.misc.Unsafe.ensureClassInitialized(Native Method)
       at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)
       at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:156)
       at java.lang.reflect.Field.acquireFieldAccessor(Field.java:1088)
       at java.lang.reflect.Field.getFieldAccessor(Field.java:1069)
       at java.lang.reflect.Field.getLong(Field.java:611)
       at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1707)
       at java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:72)
       at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:484)
       at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:472)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:472)
       at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:369)
       at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:598)
       at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1843)
       at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713)
       at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2000)
       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
       at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2245)
       at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
       at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2027)
       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
       at hudson.remoting.UserRequest.deserialize(UserRequest.java:245)
       at hudson.remoting.UserRequest.perform(UserRequest.java:159)
       at hudson.remoting.UserRequest.perform(UserRequest.java:52)
       at hudson.remoting.Request$2.run(Request.java:336)
       at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
       at ......remote call to testnode(Native Method)
       at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1554)
       at hudson.remoting.UserResponse.retrieve(UserRequest.java:281)
       at hudson.remoting.Channel.call(Channel.java:839)
       ... 10 more
       Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener
       at java.lang.ClassLoader.defineClass1(Native Method)
       at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
       at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
       at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:381)
       at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:293)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
       at hudson.FilePath.<clinit>(FilePath.java:2363)
       at sun.misc.Unsafe.ensureClassInitialized(Native Method)
       at sun.reflect.UnsafeFieldAccessorFactory.newFieldAccessor(UnsafeFieldAccessorFactory.java:43)
       at sun.reflect.ReflectionFactory.newFieldAccessor(ReflectionFactory.java:156)
       at java.lang.reflect.Field.acquireFieldAccessor(Field.java:1088)
       at java.lang.reflect.Field.getFieldAccessor(Field.java:1069)
       at java.lang.reflect.Field.getLong(Field.java:611)
       at java.io.ObjectStreamClass.getDeclaredSUID(ObjectStreamClass.java:1707)
       at java.io.ObjectStreamClass.access$700(ObjectStreamClass.java:72)
       at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:484)
       at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:472)
       at java.security.AccessController.doPrivileged(Native Method)
       at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:472)
       at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:369)
       at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:598)
       at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1843)
       at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713)
       at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2000)
       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
       at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2245)
       at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2169)
       at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2027)
       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535)
       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)
       at hudson.remoting.UserRequest.deserialize(UserRequest.java:245)
       at hudson.remoting.UserRequest.perform(UserRequest.java:159)
       at hudson.remoting.UserRequest.perform(UserRequest.java:52)
       at hudson.remoting.Request$2.run(Request.java:336)
       at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
       ... 4 more
       Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContextListener
       at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch(RemoteClassLoader.java:788)
       at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke(Method.java:498)
       at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:896)
       at hudson.remoting.Request$2.run(Request.java:336)
       at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
       at org.jenkinsci.remoting.CallableDecorator.call(CallableDecorator.java:19)
       at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
       at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
       at ......remote call to channel(Native Method)
       at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1554)
       at hudson.remoting.Request.call(Request.java:172)
       at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:260)
       at com.sun.proxy.$Proxy5.fetch(Unknown Source)
       at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:301)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
       at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
       ... 40 more
       ERROR: Connection terminated
       java.io.EOFException
       at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2638)
       at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:3113)
       at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:853)
       at java.io.ObjectInputStream.<init>(ObjectInputStream.java:349)
       at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:48)
       at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:35)
       at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:59)
       Caused: java.io.IOException: Unexpected termination of the channel
       at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:73)

       This doesn't happen every time. If the failure does happen, it seems to work if I manually relaunch the agent through the UI. In the remoting/logs on the agent itself, all it has is the ERROR: Connection terminated stuff towards the bottom

          [JENKINS-46386] Agent sometimes fails to launch in custom cloud provider

          Steven Foster added a comment -

          Tentative update:

          Ran through a list of testing changes and eventually tried installing the .hpi of my plugin onto a regular jenkins in docker instead of testing from mvn hpi:run. Haven't seen any problems since doing that... so far

          Thanks for your comment, I wouldn't have considered this kind of interference at all otherwise.

          Steven Foster added a comment - Tentative update: Ran through a list of testing changes and eventually tried installing the .hpi of my plugin onto a regular jenkins in docker instead of testing from mvn hpi:run. Haven't seen any problems since doing that... so far Thanks for your comment, I wouldn't have considered this kind of interference at all otherwise.

          Jesse Glick added a comment -

          Not sure why there would be a failure using hpi:run, which does use Jetty (though sometimes a different version than jenkins.war). If there is a complete, self-contained demo reproducing the problem it would assist diagnosis.

          Jesse Glick added a comment - Not sure why there would be a failure using hpi:run , which does use Jetty (though sometimes a different version than jenkins.war ). If there is a complete, self-contained demo reproducing the problem it would assist diagnosis.

          Code changed in jenkins
          User: Oleg Nenashev
          Path:
          core/src/main/java/hudson/FilePath.java
          http://jenkins-ci.org/commit/jenkins/27e5943050846d353a0b257237a73925d3726360
          Log:
          Merge pull request #3067 from KostyaSha/fixRemotingFilePathmkdirs

          JENKINS-46386 - Don't use unloadable things in remoting mkdirs calls.

          Compare: https://github.com/jenkinsci/jenkins/compare/be0238644911...27e594305084

          SCM/JIRA link daemon added a comment - Code changed in jenkins User: Oleg Nenashev Path: core/src/main/java/hudson/FilePath.java http://jenkins-ci.org/commit/jenkins/27e5943050846d353a0b257237a73925d3726360 Log: Merge pull request #3067 from KostyaSha/fixRemotingFilePathmkdirs JENKINS-46386 - Don't use unloadable things in remoting mkdirs calls. Compare: https://github.com/jenkinsci/jenkins/compare/be0238644911...27e594305084

          Daniel Beck added a comment -

          oleg_nenashev Does the merged change by integer resolve this issue?

          Daniel Beck added a comment - oleg_nenashev Does the merged change by integer resolve this issue?

          Jesse Glick added a comment -

          No, that may have fixed things at one point, but it regressed again with JENKINS-47324 I think. This is reproducible in trunk as follows:

          • Build core master.
          • Create an empty plugin from archetype.
          • Update its parent to 3.6, and the jenkins.version to 2.112-SNAPSHOT.
          • hpi:run it.
          • Install command-launcher.
          • Create an agent running: docker run -i --rm --init --name agent jenkinsci/slave java -jar /usr/share/jenkins/slave.jar
          • Create a freestyle project tied to that node, but with no other configuration.
          • Build it ⇒ boom:
          Started by user unknown or anonymous
          Building remotely on docker in workspace /…/workspace/…
          java.lang.ClassNotFoundException: javax.servlet.ServletContextListener
          	at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch(RemoteClassLoader.java:808)
          	at …
          Caused: java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener
          	at java.lang.ClassLoader.defineClass1(Native Method)
          	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
          	at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
          	at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:373)
          Also:   hudson.remoting.Channel$CallSiteStackTrace: Remote call to docker
          		at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1740)
          		at hudson.remoting.UserResponse.retrieve(UserRequest.java:314)
          		at hudson.remoting.Channel.call(Channel.java:955)
          		at hudson.FilePath.act(FilePath.java:997)
          		at hudson.FilePath.act(FilePath.java:986)
          		at hudson.FilePath.mkdirs(FilePath.java:1174)
          		at hudson.model.AbstractProject.checkout(AbstractProject.java:1202)
          		at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:574)
          		at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
          		at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499)
          		at hudson.model.Run.execute(Run.java:1727)
          		at …
          Caused: java.lang.LinkageError: Failed to load jenkins.util.SystemProperties
          	at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:377)
          	at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:285)
          	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
          	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
          	at hudson.Util.<clinit>(Util.java:1674)
          	at hudson.FilePath.mkdirs(FilePath.java:3058)
          	at hudson.FilePath.access$900(FilePath.java:207)
          	at hudson.FilePath$Mkdirs.invoke(FilePath.java:1182)
          	at hudson.FilePath$Mkdirs.invoke(FilePath.java:1178)
          	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2873)
          	at hudson.remoting.UserRequest.perform(UserRequest.java:153)
          	at …Caused: java.io.IOException: Remote call on docker failed
          	at hudson.remoting.Channel.call(Channel.java:961)
          	at hudson.FilePath.act(FilePath.java:997)
          Caused: java.io.IOException: remote file operation failed: /…/workspace/… at hudson.remoting.Channel@…:docker
          	at hudson.FilePath.act(FilePath.java:1004)
          	at hudson.FilePath.act(FilePath.java:986)
          	at hudson.FilePath.mkdirs(FilePath.java:1174)
          	at hudson.model.AbstractProject.checkout(AbstractProject.java:1202)
          	at …
          Finished: FAILURE
          

          Jesse Glick added a comment - No, that may have fixed things at one point, but it regressed again with JENKINS-47324 I think. This is reproducible in trunk as follows: Build core master . Create an empty plugin from archetype. Update its parent to 3.6, and the jenkins.version to 2.112-SNAPSHOT . hpi:run it. Install command-launcher . Create an agent running: docker run -i --rm --init --name agent jenkinsci/slave java -jar /usr/share/jenkins/slave.jar Create a freestyle project tied to that node, but with no other configuration. Build it ⇒ boom: Started by user unknown or anonymous Building remotely on docker in workspace /…/workspace/… java.lang.ClassNotFoundException: javax.servlet.ServletContextListener at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch(RemoteClassLoader.java:808) at … Caused: java.lang.NoClassDefFoundError: javax/servlet/ServletContextListener at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.lang.ClassLoader.defineClass(ClassLoader.java:642) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:373) Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to docker at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1740) at hudson.remoting.UserResponse.retrieve(UserRequest.java:314) at hudson.remoting.Channel.call(Channel.java:955) at hudson.FilePath.act(FilePath.java:997) at hudson.FilePath.act(FilePath.java:986) at hudson.FilePath.mkdirs(FilePath.java:1174) at hudson.model.AbstractProject.checkout(AbstractProject.java:1202) at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:574) at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499) at hudson.model.Run.execute(Run.java:1727) at … Caused: java.lang.LinkageError: Failed to load jenkins.util.SystemProperties at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:377) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:285) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at hudson.Util.<clinit>(Util.java:1674) at hudson.FilePath.mkdirs(FilePath.java:3058) at hudson.FilePath.access$900(FilePath.java:207) at hudson.FilePath$Mkdirs.invoke(FilePath.java:1182) at hudson.FilePath$Mkdirs.invoke(FilePath.java:1178) at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2873) at hudson.remoting.UserRequest.perform(UserRequest.java:153) at …Caused: java.io.IOException: Remote call on docker failed at hudson.remoting.Channel.call(Channel.java:961) at hudson.FilePath.act(FilePath.java:997) Caused: java.io.IOException: remote file operation failed: /…/workspace/… at hudson.remoting.Channel@…:docker at hudson.FilePath.act(FilePath.java:1004) at hudson.FilePath.act(FilePath.java:986) at hudson.FilePath.mkdirs(FilePath.java:1174) at hudson.model.AbstractProject.checkout(AbstractProject.java:1202) at … Finished: FAILURE

          Jesse Glick added a comment -

          Filed alternate hotfix as PR 3362.

          Jesse Glick added a comment - Filed alternate hotfix as PR 3362.

          Code changed in jenkins
          User: Jesse Glick
          Path:
          core/src/main/java/jenkins/util/SystemProperties.java
          test/src/test/java/jenkins/util/SystemPropertiesTest.java
          war/src/main/webapp/WEB-INF/web.xml
          http://jenkins-ci.org/commit/jenkins/7948315142cd8ac82ee69ab42416ea8af574860b
          Log:
          JENKINS-46386 Make SystemProperties safe to call from agent JVMs.

          SCM/JIRA link daemon added a comment - Code changed in jenkins User: Jesse Glick Path: core/src/main/java/jenkins/util/SystemProperties.java test/src/test/java/jenkins/util/SystemPropertiesTest.java war/src/main/webapp/WEB-INF/web.xml http://jenkins-ci.org/commit/jenkins/7948315142cd8ac82ee69ab42416ea8af574860b Log: JENKINS-46386 Make SystemProperties safe to call from agent JVMs.

          Code changed in jenkins
          User: Oleg Nenashev
          Path:
          core/src/main/java/jenkins/util/SystemProperties.java
          test/src/test/java/jenkins/util/SystemPropertiesTest.java
          war/src/main/webapp/WEB-INF/web.xml
          http://jenkins-ci.org/commit/jenkins/63a58031624f196b18d93aef00c76a10543ec95f
          Log:
          Merge pull request #3362 from jglick/SystemProperties-JENKINS-46386

          JENKINS-46386 Make SystemProperties safe to call from agent JVMs

          Compare: https://github.com/jenkinsci/jenkins/compare/9e667a2f4fcd...63a58031624f

          SCM/JIRA link daemon added a comment - Code changed in jenkins User: Oleg Nenashev Path: core/src/main/java/jenkins/util/SystemProperties.java test/src/test/java/jenkins/util/SystemPropertiesTest.java war/src/main/webapp/WEB-INF/web.xml http://jenkins-ci.org/commit/jenkins/63a58031624f196b18d93aef00c76a10543ec95f Log: Merge pull request #3362 from jglick/SystemProperties- JENKINS-46386 JENKINS-46386 Make SystemProperties safe to call from agent JVMs Compare: https://github.com/jenkinsci/jenkins/compare/9e667a2f4fcd...63a58031624f

          Oleg Nenashev added a comment -

          The patch from jglick has been released in 2.113.
          I am closing this issue, because now the general use-case is addressed

          Oleg Nenashev added a comment - The patch from jglick has been released in 2.113. I am closing this issue, because now the general use-case is addressed

          Code changed in jenkins
          User: Jesse Glick
          Path:
          core/src/main/java/jenkins/util/SystemProperties.java
          test/src/test/java/jenkins/util/SystemPropertiesTest.java
          war/src/main/webapp/WEB-INF/web.xml
          http://jenkins-ci.org/commit/jenkins/615c3b1f616b9ba4aa5dd2c348b61b3546edf882
          Log:
          JENKINS-46386 Make SystemProperties safe to call from agent JVMs.

          (cherry picked from commit 7948315142cd8ac82ee69ab42416ea8af574860b)

          SCM/JIRA link daemon added a comment - Code changed in jenkins User: Jesse Glick Path: core/src/main/java/jenkins/util/SystemProperties.java test/src/test/java/jenkins/util/SystemPropertiesTest.java war/src/main/webapp/WEB-INF/web.xml http://jenkins-ci.org/commit/jenkins/615c3b1f616b9ba4aa5dd2c348b61b3546edf882 Log: JENKINS-46386 Make SystemProperties safe to call from agent JVMs. (cherry picked from commit 7948315142cd8ac82ee69ab42416ea8af574860b)

            oleg_nenashev Oleg Nenashev
            stevenfoster Steven Foster
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              Created:
              Updated:
              Resolved: