jshell on ios without process exec?

[Grigory Ptashko]

Hello.

Long story short. I’ve just tried to use jshell on ios (both arm64 and simulator).

I try this:

JShell jshell = JShell.create();
List<SnippetEvent> events = jshell.eval("2+2");
System.out.println(events.get(0).value());

And get the exception:

Exception in thread "Thread-0" java.lang.Error: iOS is not a supported OS platform.
	at java.lang.ProcessImpl$Platform.get(ProcessImpl.java:171)
	at java.lang.ProcessImpl.<clinit>(ProcessImpl.java:175)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1111)
	at java.lang.ProcessBuilder.start(ProcessBuilder.java:1075)
	at java.lang.Runtime.exec(Runtime.java:624)
	at java.lang.Runtime.exec(Runtime.java:483)
	at com.sun.tools.jdi.AbstractLauncher$Helper.launchAndAccept(AbstractLauncher.java:180)
	at com.sun.tools.jdi.AbstractLauncher.launch(AbstractLauncher.java:132)
	at com.sun.tools.jdi.SunCommandLineLauncher.launch(SunCommandLineLauncher.java:223)
	at jdk.jshell.JDIConnection.launchTarget(JDIConnection.java:303)
	at jdk.jshell.JDIConnection.open(JDIConnection.java:121)
	at jdk.jshell.JDIEnv.init(JDIEnv.java:49)
	at jdk.jshell.ExecutionControl.jdiGo(ExecutionControl.java:269)
	at jdk.jshell.ExecutionControl.launch(ExecutionControl.java:71)
	at jdk.jshell.JShell.executionControl(JShell.java:613)
	at jdk.jshell.ClassTracker$ClassInfo.getReferenceTypeOrNull(ClassTracker.java:81)
	at jdk.jshell.Unit.lambda$classesToLoad$3(Unit.java:266)
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1422)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:591)
	at jdk.jshell.Unit.classesToLoad(Unit.java:264)
	at jdk.jshell.Eval.lambda$compileAndLoad$13(Eval.java:559)
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:269)
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1422)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:511)
	at jdk.jshell.Eval.compileAndLoad(Eval.java:560)
	at jdk.jshell.Eval.declare(Eval.java:462)
	at jdk.jshell.Eval.declare(Eval.java:448)
	at jdk.jshell.Eval.processExpression(Eval.java:291)
	at jdk.jshell.Eval.eval(Eval.java:118)
	at jdk.jshell.JShell.eval(JShell.java:350)
	at EvalJava.main(EvalJava.java:14)

Is it possible to use jshell without exec’ing a process? Within the same process?

Thank you.

--
Best regards,
Grigory Ptashko
Software developer at Biblio-Globus Touroperator
g.ptashko at bgoperator.com
Phone: +7 495 5042500 ext 1557
Mobile: +7 916 1489766