nraychaudhuri
commented
10 years ago I see you are running the Play application in "dev" mode using sbt run. One of the limitation of the remote-repl tool (which I am planning to fix as soon as possible) is doesn't work very well if you have multiple classloaders. When you run Play in dev mode we have to deal with sbt classloaders, play classloaders and others. If you run Play using "start" (in prod mode) it should work.
One possible way to fix this problem would be to show user all the available classloaders and tool latch on to the one selected. This is pretty high in my list. I might work on this weekend.
lutnos
andreak
joprice
My first attempt to run the repo has failed with an apparent class loader issue.
First I download and build the remote repo project:
Last login: Wed Mar 12 15:40:28 on ttys008 davesimac:~ dave$ java -version java version "1.7.0_51" Java(TM) SE Runtime Environment (build 1.7.0_51-b13) Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode) davesimac:~ dave$ mkdir srr davesimac:~ dave$ cd srr davesimac:srr dave$ git clone https://github.com/nraychaudhuri/scala-remote-repl Cloning into 'scala-remote-repl'... remote: Reusing existing pack: 110, done. remote: Total 110 (delta 0), reused 0 (delta 0) Receiving objects: 100% (110/110), 48.96 KiB | 0 bytes/s, done. Resolving deltas: 100% (21/21), done. Checking connectivity... done. davesimac:srr dave$ cd scala-remote-repl/ davesimac:scala-remote-repl dave$ sbt publishLocal Loading /Users/dave/sbt/0.13.0/sbt/bin/sbt-launch-lib.bash [info] Loading global plugins from /Users/dave/.sbt/0.13/plugins [info] Loading project definition from /Users/dave/srr/scala-remote-repl/project [info] Updating {file:/Users/dave/srr/scala-remote-repl/project/}scala-remote-repl-build... [info] Resolving org.fusesource.jansi#jansi;1.4 ... [info] Done updating. [info] Set current project to remote-repl (in build file:/Users/dave/srr/scala-remote-repl/) [info] Packaging /Users/dave/srr/scala-remote-repl/target/scala-2.10/remote-repl_2.10-0.1-SNAPSHOT-sources.jar ... [info] Packaging /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/agent_2.10-0.1-SNAPSHOT-sources.jar ... [info] Updating {file:/Users/dave/srr/scala-remote-repl/}main... [info] Done packaging. [info] Updating {file:/Users/dave/srr/scala-remote-repl/}agent... [info] Done packaging. [info] Wrote /Users/dave/srr/scala-remote-repl/target/scala-2.10/remote-repl_2.10-0.1-SNAPSHOT.pom [info] Wrote /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/agent_2.10-0.1-SNAPSHOT.pom [info] Resolving org.fusesource.jansi#jansi;1.4 ... [info] Done updating. [info] Resolving org.scala-lang#scala-reflect;2.10.2 ... [info] Main Java API documentation to /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api... [info] Compiling 2 Java sources to /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/classes... [info] Resolving com.typesafe#config;1.2.0 ... [info] Done updating. [info] :: delivering :: agent#agent_2.10;0.1-SNAPSHOT :: 0.1-SNAPSHOT :: integration :: Wed Mar 12 15:46:44 GMT 2014 [info] delivering ivy file to /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/ivy-0.1-SNAPSHOT.xml [info] :: delivering :: net.nworks#remote-repl_2.10;0.1-SNAPSHOT :: 0.1-SNAPSHOT :: integration :: Wed Mar 12 15:46:44 GMT 2014 [info] delivering ivy file to /Users/dave/srr/scala-remote-repl/target/scala-2.10/ivy-0.1-SNAPSHOT.xml [info] Main Scala API documentation to /Users/dave/srr/scala-remote-repl/target/scala-2.10/api... [info] Compiling 3 Scala sources to /Users/dave/srr/scala-remote-repl/target/scala-2.10/classes... [warn] Note: /Users/dave/srr/scala-remote-repl/agent/src/main/java/com/nworks/remote/agent/AgentMain.java uses unchecked or unsafe operations. [warn] Note: Recompile with -Xlint:unchecked for details. [info] Loading source file /Users/dave/srr/scala-remote-repl/agent/src/main/java/com/nworks/remote/agent/AgentMain.java... [info] Loading source file /Users/dave/srr/scala-remote-repl/agent/src/main/java/com/nworks/remote/agent/ClassLoaderFinder.java... [info] Constructing Javadoc information... [info] Standard Doclet version 1.7.0_51 [info] Building tree for all the packages and classes... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/com/nworks/remote/agent/AgentMain.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/com/nworks/remote/agent/ClassLoaderFinder.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/com/nworks/remote/agent/package-frame.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/com/nworks/remote/agent/package-summary.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/com/nworks/remote/agent/package-tree.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/constant-values.html... [info] Building index for all the packages and classes... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/overview-tree.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/index-all.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/deprecated-list.html... [info] Building index for all classes... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/allclasses-frame.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/allclasses-noframe.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/index.html... [info] Generating /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/api/help-doc.html... [info] Main Java API documentation successful. [info] Packaging /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/agent_2.10-0.1-SNAPSHOT-javadoc.jar ... [info] Packaging /Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/agent_2.10-0.1-SNAPSHOT.jar ... [info] Done packaging. [info] Done packaging. [info] published agent_2.10 to /Users/dave/.ivy2/local/agent/agent_2.10/0.1-SNAPSHOT/poms/agent_2.10.pom [info] published agent_2.10 to /Users/dave/.ivy2/local/agent/agent_2.10/0.1-SNAPSHOT/jars/agent_2.10.jar [info] published agent_2.10 to /Users/dave/.ivy2/local/agent/agent_2.10/0.1-SNAPSHOT/srcs/agent_2.10-sources.jar [info] published agent_2.10 to /Users/dave/.ivy2/local/agent/agent_2.10/0.1-SNAPSHOT/docs/agent_2.10-javadoc.jar [info] published ivy to /Users/dave/.ivy2/local/agent/agent_2.10/0.1-SNAPSHOT/ivys/ivy.xml model contains 12 documentable templates [info] Main Scala API documentation successful. [warn] there were 1 deprecation warning(s); re-run with -deprecation for details [warn] one warning found [info] Packaging /Users/dave/srr/scala-remote-repl/target/scala-2.10/remote-repl_2.10-0.1-SNAPSHOT-javadoc.jar ... [info] Packaging /Users/dave/srr/scala-remote-repl/target/scala-2.10/remote-repl_2.10-0.1-SNAPSHOT.jar ... [info] Done packaging. [info] Done packaging. [info] published remote-repl_2.10 to /Users/dave/.ivy2/local/net.nworks/remote-repl_2.10/0.1-SNAPSHOT/poms/remote-repl_2.10.pom [info] published remote-repl_2.10 to /Users/dave/.ivy2/local/net.nworks/remote-repl_2.10/0.1-SNAPSHOT/jars/remote-repl_2.10.jar [info] published remote-repl_2.10 to /Users/dave/.ivy2/local/net.nworks/remote-repl_2.10/0.1-SNAPSHOT/srcs/remote-repl_2.10-sources.jar [info] published remote-repl_2.10 to /Users/dave/.ivy2/local/net.nworks/remote-repl_2.10/0.1-SNAPSHOT/docs/remote-repl_2.10-javadoc.jar [info] published ivy to /Users/dave/.ivy2/local/net.nworks/remote-repl_2.10/0.1-SNAPSHOT/ivys/ivy.xml [success] Total time: 9 s, completed 12-Mar-2014 15:46:52 davesimac:scala-remote-repl dave$ vi davejars.conf davesimac:scala-remote-repl dave$ cat davejars.conf repl.agent.path=/Users/dave/srr/scala-remote-repl/agent/target/scala-2.10/agent_2.10-0.1-SNAPSHOT.jar repl.scala.compiler.path=/Users/dave/.ivy2/cache/org.scala-lang/scala-compiler/jars/scala-compiler-2.10.2.jar repl.server.path=/Users/dave/srr/scala-remote-repl/target/scala-2.10/remote-repl_2.10-0.1-SNAPSHOT.jar davesimac:scala-remote-repl dave$Then in a separate terminal window I start the sample play application:
Last login: Wed Mar 12 15:43:16 on ttys009 davesimac:~ dave$ pwd /Users/dave davesimac:~ dave$ cd srr davesimac:srr dave$ cd scala-remote-repl/ davesimac:scala-remote-repl dave$ ls README.md build.sbt myjars.conf sample_play_app target agent davejars.conf project src davesimac:scala-remote-repl dave$ cd sample_play_app/ davesimac:sample_play_app dave$ ls README build.sbt project test app conf public davesimac:sample_play_app dave$ cat README This is your new Play application ===================================== This file will be packaged with your application, when using `play dist`. davesimac:sample_play_app dave$ sbt Loading /Users/dave/sbt/0.13.0/sbt/bin/sbt-launch-lib.bash [info] Loading global plugins from /Users/dave/.sbt/0.13/plugins [info] Updating {file:/Users/dave/.sbt/0.13/plugins/}global-plugins... [info] Resolving org.fusesource.jansi#jansi;1.4 ... [info] Done updating. [info] Loading project definition from /Users/dave/srr/scala-remote-repl/sample_play_app/project [info] Set current project to sample_play_app (in build file:/Users/dave/srr/scala-remote-repl/sample_play_app/) [sample_play_app] $ run [info] Updating {file:/Users/dave/srr/scala-remote-repl/sample_play_app/}sample_play_app... [info] Resolving org.fusesource.jansi#jansi;1.4 ... [info] downloading http://repo.typesafe.com/typesafe/releases/com/typesafe/play/anorm_2.10/2.2.2/anorm_2.10-2.2.2.jar ... [info] [SUCCESSFUL ] com.typesafe.play#anorm_2.10;2.2.2!anorm_2.10.jar (944ms) [info] downloading http://repo.typesafe.com/typesafe/releases/com/typesafe/play/play-cache_2.10/2.2.2/play-cache_2.10-2.2.2.jar ... [info] [SUCCESSFUL ] com.typesafe.play#play-cache_2.10;2.2.2!play-cache_2.10.jar (466ms) [info] Done updating. --- (Running the application from SBT, auto-reloading is enabled) --- [info] play - Listening for HTTP on /0:0:0:0:0:0:0:0:9000 (Server started, use Ctrl+D to stop and go back to the console...) [info] Compiling 3 Scala sources and 1 Java source to /Users/dave/srr/scala-remote-repl/sample_play_app/target/scala-2.10/classes... [info] play - Application started (Dev) objc[6005]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined.Finally trying to invoke the remote repo:
Provokes this error in the play application:
Running agent in remote jvm... Selected classloader sun.misc.Launcher$AppClassLoader@18fb53f6 Resetting the classloader...sun.misc.Launcher$AppClassLoader@18fb53f6 Exception in thread "remote-repl-thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at com.nworks.remote.agent.AgentMain.startRepl(AgentMain.java:82) at com.nworks.remote.agent.AgentMain.access$100(AgentMain.java:11) at com.nworks.remote.agent.AgentMain$1.run(AgentMain.java:36) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.nworks.remote.agent.AgentMain.startRepl(AgentMain.java:78) ... 2 more Caused by: java.lang.NoClassDefFoundError: scala/collection/Seq at com.nworks.remote.repl.ServerRepl.start(ServerRepl.scala) ... 7 more Caused by: java.lang.ClassNotFoundException: scala.collection.Seq at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 8 moreand this in the remote repo invocation:
[error] (run-main-0) java.net.ConnectException: Connection refused java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.(Socket.java:425)
at java.net.Socket.(Socket.java:208)
at com.nworks.remote.repl.ClientRepl$.connectToRemote(ClientRepl.scala:17)
at com.nworks.remote.repl.Main$.main(Main.scala:19)
at com.nworks.remote.repl.Main.main(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
[trace] Stack trace suppressed: run last main/compile:run for the full output.
java.lang.RuntimeException: Nonzero exit code: 1
at scala.sys.package$.error(package.scala:27)
[trace] Stack trace suppressed: run last main/compile:run for the full output.
[error] (main/compile:run) Nonzero exit code: 1
[error] Total time: 281 s, completed 12-Mar-2014 16:04:28
davesimac:scala-remote-repl dave$
Please let me know if I can do anything further to investigate this, or otherwise how I might get this very useful project working.
Thanks
Dave