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How to force interpreter show complete stack trace?

Is there any way to force Scala interpreter (started through SBT) to print complete stack trace. By default, less than 10 lines are displayed:

scala> new CacheMonitoringClient
javax.management.InstanceNotFoundException: com.bea:Name=DomainRuntimeService,Type=weblogic.management.beanservers.domainrun
time.DomainRuntimeServiceMBean
        at weblogic.rjvm.ResponseImpl.unmarshalReturn(ResponseImpl.java:195)
        at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:224)
        at javax.management.remote.rmi.RMIConnectionImpl_921_WLStub.getAttribute(Unknown Source)
        at weblogic.management.remote.common.RMIConnectionWrapper$11.run(ClientProviderBase.java:498)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
        at weblogic.security.Security.runAs(Security.java:61)
        at weblogic.management.remote.common.RMIConnectionWrapper.getAttribute(ClientProviderBas...

As a workaround I'm using try { new CacheMonitoringClient } catch { case ex => ex.printStackTrace} (explicitly wrapping the calls that throw the exceptions I'm interested in), but that really ugly...

like image 899
Vasil Remeniuk Avatar asked Sep 22 '10 09:09

Vasil Remeniuk


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1 Answers

Use lastException if you want just one thing:

scala> 1 / 0
java.lang.ArithmeticException: / by zero
    at .<init>(<console>:12)
    at .<clinit>(<console>)
    at RequestResult$.<init>(<console>:9)
    at RequestResult$.<clinit>(<console>)
    at RequestResult$scala_repl_result(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.util.control.Exception$Catch.apply(Exception.scala:79)
    at scal...
scala> lastException.printStackTrace
java.lang.ArithmeticException: / by zero
    at line101$object$$iw$$iw$$iw$$iw$$iw$$iw$.<init>(<console>:12)
    at line101$object$$iw$$iw$$iw$$iw$$iw$$iw$.<clinit>(<console>)
    at RequestResult$line101$object$.<init>(<console>:9)
    at RequestResult$line101$object$.<clinit>(<console>)
    at RequestResult$line101$object.scala_repl_result(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.util.control.Exception$Catch.apply(Exception.scala:79)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1.apply(Interpreter.scala:980)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1.apply(Interpreter.scala:980)
    at scala.util.control.Exception$Catch.apply(Exception.scala:79)
    at scala.tools.nsc.Interpreter$Request.loadAndRun(Interpreter.scala:979)
    at scala.tools.nsc.Interpreter.loadAndRunReq$1(Interpreter.scala:578)
    at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:597)
    at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:575)
    at scala.tools.nsc.InterpreterLoop.reallyInterpret$1(InterpreterLoop.scala:471)
    at scala.tools.nsc.InterpreterLoop.interpretStartingWith(InterpreterLoop.scala:514)
    at scala.tools.nsc.InterpreterLoop.command(InterpreterLoop.scala:361)
    at scala.tools.nsc.InterpreterLoop.processLine$1(InterpreterLoop.scala:242)
    at scala.tools.nsc.InterpreterLoop.repl(InterpreterLoop.scala:248)
    at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:558)
    at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:72)
    at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)

Or set settings.maxPrintString to 0, though that will change how normal results are printed too.

scala> settings.maxPrintString = 0

scala> 1 /0
java.lang.ArithmeticException: / by zero
    at .<init>(<console>:12)
    at .<clinit>(<console>)
    at RequestResult$.<init>(<console>:9)
    at RequestResult$.<clinit>(<console>)
    at RequestResult$scala_repl_result(<console>)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1$$anonfun$apply$18.apply(Interpreter.scala:981)
    at scala.util.control.Exception$Catch.apply(Exception.scala:79)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1.apply(Interpreter.scala:980)
    at scala.tools.nsc.Interpreter$Request$$anonfun$loadAndRun$1.apply(Interpreter.scala:980)
    at scala.util.control.Exception$Catch.apply(Exception.scala:79)
    at scala.tools.nsc.Interpreter$Request.loadAndRun(Interpreter.scala:979)
    at scala.tools.nsc.Interpreter.loadAndRunReq$1(Interpreter.scala:578)
    at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:597)
    at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:575)
    at scala.tools.nsc.InterpreterLoop.reallyInterpret$1(InterpreterLoop.scala:471)
    at scala.tools.nsc.InterpreterLoop.interpretStartingWith(InterpreterLoop.scala:514)
    at scala.tools.nsc.InterpreterLoop.command(InterpreterLoop.scala:361)
    at scala.tools.nsc.InterpreterLoop.processLine$1(InterpreterLoop.scala:242)
    at scala.tools.nsc.InterpreterLoop.repl(InterpreterLoop.scala:248)
    at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:558)
    at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:72)
    at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
like image 87
Daniel C. Sobral Avatar answered Oct 22 '22 00:10

Daniel C. Sobral