Problem was widespread on macs @ hackday.
JShell JDI connection should,
Try: "localhost" rather than hostname.
Try: attach?

Workaround: add hostname to /etc/hosts with 127.0.0.1

---- submitted report --


My OS: Mac OS X Yosemite 10.10.3
kulla version should be kulla-0.610-20150709005843.

$ java -version

java version "1.9.0-ea"

Java(TM) SE Runtime Environment (build 1.9.0-ea-b72)

Java HotSpot(TM) 64-Bit Server VM (build 1.9.0-ea-b72, mixed mode)

$ java -jar kulla-arun.jar

Exception in thread "main" java.lang.InternalError: Failed remote launch:
com.sun.jdi.CommandLineLaunch (defaults:
home=/Library/Java/JavaVirtualMachines/jdk1.9.0.jdk/Contents/Home,
options=, main=, suspend=true, quote=", vmexec=java) --
{home=home=/Library/Java/JavaVirtualMachines/jdk1.9.0.jdk/Contents/Home,
options=options=-classpath kulla-arun.jar ,
main=main=jdk.internal.jshell.impl.remote.RemoteAgent 49933,
suspend=suspend=true, quote=quote=", vmexec=vmexec=java}

at
jdk.internal.jshell.impl.VMConnection.reportLaunchFail(VMConnection.java:529)

at jdk.internal.jshell.impl.VMConnection.launchTarget(VMConnection.java:497)

at jdk.internal.jshell.impl.VMConnection.open(VMConnection.java:319)

at jdk.internal.jshell.impl.JDIEnv.init(JDIEnv.java:43)

at jdk.internal.jshell.impl.JDIExecution.jdiGo(JDIExecution.java:254)

at jdk.internal.jshell.impl.JDIExecution.launch(JDIExecution.java:69)

at jdk.internal.jshell.impl.JShellImpl.jdiExec(JShellImpl.java:108)

at jdk.internal.jshell.impl.Eval.load(Eval.java:682)

at jdk.internal.jshell.impl.Eval.declare(Eval.java:553)

at jdk.internal.jshell.impl.Eval.declare(Eval.java:457)

at jdk.internal.jshell.impl.Eval.processMethod(Eval.java:366)

at jdk.internal.jshell.impl.Eval.eval(Eval.java:138)

at jdk.internal.jshell.impl.JShellImpl.eval(JShellImpl.java:132)

at
jdk.internal.jshell.tool.JShellTool.processCompleteSource(JShellTool.java:1307)

at jdk.internal.jshell.tool.JShellTool.processSource(JShellTool.java:1296)

at
jdk.internal.jshell.tool.JShellTool.processSourceCatchingReset(JShellTool.java:416)

at jdk.internal.jshell.tool.JShellTool.run(JShellTool.java:402)

at jdk.internal.jshell.tool.JShellTool.resetState(JShellTool.java:340)

at jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:204)

at jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:199)

at jdk.internal.jshell.tool.JShellTool.main(JShellTool.java:189)

Caused by: com.sun.jdi.connect.VMStartException: VM initialization failed
for: /Library/Java/JavaVirtualMachines/jdk1.9.0.jdk/Contents/Home/bin/java
-classpath kulla-arun.jar -Xdebug
-Xrunjdwp:transport=dt_socket,address=MacBook-Pro.local:49934,suspend=y
jdk.internal.jshell.impl.remote.RemoteAgent 49933

at
com.sun.tools.jdi.AbstractLauncher$Helper.launchAndAccept(AbstractLauncher.java:193)

at com.sun.tools.jdi.AbstractLauncher.launch(AbstractLauncher.java:132)

at
com.sun.tools.jdi.SunCommandLineLauncher.launch(SunCommandLineLauncher.java:223)

at jdk.internal.jshell.impl.VMConnection.launchTarget(VMConnection.java:490)

... 19 more


Ben