NullPointerException in IRClosure #1741

donv · 2014-06-11T11:40:52Z

Got the exception below when using master in Ruboto today. I can probably find which source file was loaded if it would be helpful.

java.lang.NullPointerException
   at org.jruby.ir.IRClosure.<init>(IRClosure.java:64)
   at org.jruby.ir.IREvalScript.<init>(IREvalScript.java:32)
   at org.jruby.ir.IRBuilder.buildEvalRoot(IRBuilder.java:3220)
   at org.jruby.ir.interpreter.Interpreter.interpretCommonEval(Interpreter.java:135)
   at org.jruby.ir.interpreter.Interpreter.interpretSimpleEval(Interpreter.java:163)
   at org.jruby.ir.interpreter.Interpreter.evalSimple(Interpreter.java:733)
   at org.jruby.RubyBasicObject.evalUnder(RubyBasicObject.java:1798)
   at org.jruby.RubyBasicObject.specificEval(RubyBasicObject.java:1748)
   at org.jruby.RubyBasicObject.instance_eval19(RubyBasicObject.java:1581)
   at org.jruby.RubyBasicObject$INVOKER$i$instance_eval19.call(RubyBasicObject$INVOKER$i$instance_eval19.gen)
   at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrThreeBlock.call(JavaMethod.java:519)
   at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:180)
   at org.jruby.RubyClass.finvoke(RubyClass.java:662)
   at org.jruby.runtime.Helpers.invoke(Helpers.java:542)
   at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.callEachType(EmbedRubyObjectAdapterImpl.java:353)
   at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.call(EmbedRubyObjectAdapterImpl.java:306)
   at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.runRubyMethod(EmbedRubyObjectAdapterImpl.java:278)
   at org.jruby.embed.ScriptingContainer.runRubyMethod(ScriptingContainer.java:1528)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at org.ruboto.JRubyAdapter.runRubyMethod(JRubyAdapter.java:51)
   at org.ruboto.test.InstrumentationTestRunner.loadScript(InstrumentationTestRunner.java:171)
   at org.ruboto.test.InstrumentationTestRunner.getAllTests(InstrumentationTestRunner.java:100)
   at android.test.InstrumentationTestRunner.getTestSuite(InstrumentationTestRunner.java:580)
   at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:360)
   at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4335)
   at android.app.ActivityThread.access$1500(ActivityThread.java:135)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:136)
   at android.app.ActivityThread.main(ActivityThread.java:5017)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
   at dalvik.system.NativeStart.main(Native Method)

The text was updated successfully, but these errors were encountered:

enebo · 2014-06-11T14:24:56Z

@donv Yeah that would be excellent.

donv · 2014-08-08T00:11:58Z

Finally got down to look at this again. The file in question is ruboto_test_app_activity_test.rb:

activity Java::org.ruboto.test_app.RubotoTestAppActivity

setup do |activity|
  start = Time.now
  loop do
    @text_view = activity.findViewById(42)
    break if @text_view || (Time.now - start > 60)
    sleep 1
  end
  assert @text_view
end

test('initial setup') do |activity|
  assert_equal 'What hath Matz wrought?', @text_view.text
end

test('button changes text', :ui => false) do |activity|
  button = activity.findViewById(43)
  clicked_at = nil
  activity.run_on_ui_thread do
    button.performClick
    clicked_at = Time.now
  end

  sleep 0.1 until clicked_at && (@text_view.text == 'Broadcast received!' || (Time.now - clicked_at) > 10)

  assert_equal 'Broadcast received!', @text_view.text
end

The stack trace now is:

W/System.err( 3277): java.lang.NullPointerException: Attempt to invoke virtual method 'int org.jruby.ir.IRScope.getNextClosureId()' on a null object ref
erence
W/System.err( 3277):    at org.jruby.ir.IRClosure.<init>(IRClosure.java:49)
W/System.err( 3277):    at org.jruby.ir.IREvalScript.<init>(IREvalScript.java:33)
W/System.err( 3277):    at org.jruby.ir.IRBuilder.buildEvalRoot(IRBuilder.java:3169)
W/System.err( 3277):    at org.jruby.ir.interpreter.Interpreter.interpretCommonEval(Interpreter.java:79)
W/System.err( 3277):    at org.jruby.ir.interpreter.Interpreter.interpretSimpleEval(Interpreter.java:110)
W/System.err( 3277):    at org.jruby.ir.interpreter.Interpreter.evalSimple(Interpreter.java:701)
W/System.err( 3277):    at org.jruby.RubyBasicObject.evalUnder(RubyBasicObject.java:1845)
W/System.err( 3277):    at org.jruby.RubyBasicObject.specificEval(RubyBasicObject.java:1795)
W/System.err( 3277):    at org.jruby.RubyBasicObject.instance_eval19(RubyBasicObject.java:1623)
W/System.err( 3277):    at org.jruby.RubyBasicObject$INVOKER$i$instance_eval19.call(RubyBasicObject$INVOKER$i$instance_eval19.gen)
W/System.err( 3277):    at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrThreeBlock.call(JavaMethod.java:535)
W/System.err( 3277):    at org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:180)
W/System.err( 3277):    at org.jruby.RubyClass.finvoke(RubyClass.java:663)
W/System.err( 3277):    at org.jruby.runtime.Helpers.invoke(Helpers.java:583)
W/System.err( 3277):    at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.callEachType(EmbedRubyObjectAdapterImpl.java:353)
W/System.err( 3277):    at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.call(EmbedRubyObjectAdapterImpl.java:306)
W/System.err( 3277):    at org.jruby.embed.internal.EmbedRubyObjectAdapterImpl.runRubyMethod(EmbedRubyObjectAdapterImpl.java:278)
W/System.err( 3277):    at org.jruby.embed.ScriptingContainer.runRubyMethod(ScriptingContainer.java:1554)
W/System.err( 3277):    at java.lang.reflect.Method.invoke(Native Method)
W/System.err( 3277):    at java.lang.reflect.Method.invoke(Method.java:372)
W/System.err( 3277):    at org.ruboto.JRubyAdapter.runRubyMethod(JRubyAdapter.java:51)
W/System.err( 3277):    at org.ruboto.test.InstrumentationTestRunner.loadScript(InstrumentationTestRunner.java:171)
W/System.err( 3277):    at org.ruboto.test.InstrumentationTestRunner.getAllTests(InstrumentationTestRunner.java:100)
W/System.err( 3277):    at android.test.InstrumentationTestRunner.getTestSuite(InstrumentationTestRunner.java:581)
W/System.err( 3277):    at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:361)
W/System.err( 3277):    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4388)
W/System.err( 3277):    at android.app.ActivityThread.access$1500(ActivityThread.java:143)
W/System.err( 3277):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)
W/System.err( 3277):    at android.os.Handler.dispatchMessage(Handler.java:102)
W/System.err( 3277):    at android.os.Looper.loop(Looper.java:135)
W/System.err( 3277):    at android.app.ActivityThread.main(ActivityThread.java:5070)
W/System.err( 3277):    at java.lang.reflect.Method.invoke(Native Method)
W/System.err( 3277):    at java.lang.reflect.Method.invoke(Method.java:372)
W/System.err( 3277):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:836)
W/System.err( 3277):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:631)

@enebo any ideas?

enebo · 2014-08-08T15:59:26Z

@donv I only looked at this for a few minutes but I suspect however we setup eval via embedding might not be passing in an enclosing IRScope (which is where the NPE is from). Once I stabilze my current parser work I will try and set up a test for this. I believe however ruboto calls through scriptingcontainer must be exposing a bug since we cut over to IR.

donv · 2014-09-21T16:34:40Z

Hi @enebo !

I am still getting this. Have you stabilised the parser? Any chance you could look at this again? It is the only known issue preventing using master with Ruboto.

enebo · 2014-09-23T19:56:20Z

Can you link ruboto ScriptingContainer code to this issue? If I can see how you are invoking scriptingcontainer hopefully I can reproduce this on Java and make a testcase. The line makes it clear we are missing the parent scope. So my educated guess is probably right that how we hook up scriptingcontainer is passing in a null parent scope.

donv · 2014-10-15T22:01:51Z

Hi @enebo !

Sorry for the delay. I finally got Ruboto 1.2.0 out, so I have a bit more time :) My backlog is huge!

Here is a link to the code to set up the ScriptingContainer. Please ask if I can clarify it.

https://github.com/ruboto/ruboto/blob/master/assets/src/org/ruboto/JRubyAdapter.java#L127

enebo · 2014-10-16T14:45:16Z

@donv could you remove the passes and try again. I am curious if there is
something wrong with just that combination of passes. We do not permute
all pass combos yet.

On Wed, Oct 15, 2014 at 5:01 PM, Uwe Kubosch notifications@github.com
wrote:

Hi @enebo https://github.com/enebo !

Sorry for the delay. I finally got Ruboto 1.2.0 out, so I have a bit more
time :) My backlog is huge!

Here is a link to the code to set up the ScriptingContainer. Please ask if
I can clarify it.

https://github.com/ruboto/ruboto/blob/master/assets/src/org/ruboto/JRubyAdapter.java#L127

—
Reply to this email directly or view it on GitHub
#1741 (comment).

blog: http://blog.enebo.com twitter: tom_enebo
mail: tom.enebo@gmail.com

kares · 2018-03-01T13:58:13Z

let's call this one resolved by now 👴

enebo added this to the JRuby 9000 milestone Sep 23, 2014

enebo added the 9000_feedback label Sep 23, 2014

headius removed the 9000_feedback label Nov 12, 2014

enebo modified the milestone: JRuby 9.0.0.0 Jul 14, 2015

kares added ir JRuby 9000 Ruboto labels Jan 17, 2017

kares added this to the Invalid or Duplicate milestone Mar 1, 2018

kares closed this as completed Mar 1, 2018

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NullPointerException in IRClosure #1741

NullPointerException in IRClosure #1741

donv commented Jun 11, 2014

enebo commented Jun 11, 2014

donv commented Aug 8, 2014

enebo commented Aug 8, 2014

donv commented Sep 21, 2014

enebo commented Sep 23, 2014

donv commented Oct 15, 2014

enebo commented Oct 16, 2014

kares commented Mar 1, 2018

NullPointerException in IRClosure #1741

NullPointerException in IRClosure #1741

Comments

donv commented Jun 11, 2014

enebo commented Jun 11, 2014

donv commented Aug 8, 2014

enebo commented Aug 8, 2014

donv commented Sep 21, 2014

enebo commented Sep 23, 2014

donv commented Oct 15, 2014

enebo commented Oct 16, 2014

kares commented Mar 1, 2018