[GROOVY-6946] Uninitialized object exists on backward branch 70

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.3.3, 2.3.4
• Component/s: bytecode

Environment

------------------------------------------------------------
Gradle 2.0
------------------------------------------------------------

Build time: 2014-07-01 07:45:34 UTC
Build number: none
Revision: b6ead6fa452dfdadec484059191eb641d817226c

Groovy: 2.3.3
Ant: Apache Ant(TM) version 1.9.3 compiled on December 23 2013
JVM: 1.8.0_05 (Oracle Corporation 25.5-b02)
OS: Mac OS X 10.9.3 x86_64

• Assignee: Jochen Theodorou
• Reporter: Andres Almiray
• Created: 14/Jul/14 03:32
• Updated: 17/Dec/14 13:25
• Resolved: 08/Oct/14 08:38

Description

The following error appears when @CompileStatic is applied to line 110 of OpenDolphin's Clientconnector class (see https://github.com/canoo/open-dolphin/blob/injection-providers/subprojects/client/src/main/groovy/org/opendolphin/core/client/comm/ClientConnector.groovy#L110)

gradle clean test
:buildSrc:compileJava UP-TO-DATE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava UP-TO-DATE
:buildSrc:compileTestGroovy UP-TO-DATE
:buildSrc:processTestResources UP-TO-DATE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test UP-TO-DATE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
using javafx from current java 8: /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home/jre/lib/ext/
:client:clean
:shared:compileJava UP-TO-DATE
:shared:compileGroovy
Note: /Users/aalmiray/Projects/canoo/open-dolphin/subprojects/shared/src/main/groovy/org/opendolphin/core/BaseAttribute.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
:shared:processResources UP-TO-DATE
:shared:classes
:shared:jar
:client:compileJava UP-TO-DATE
:client:compileGroovy
:client:processResources UP-TO-DATE
:client:classes
:client:instrument SKIPPED
:client:copyCoberturaDatafile SKIPPED
:client:compileTestJava UP-TO-DATE
:client:compileTestGroovy FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':client:compileTestGroovy'.
> Uninitialized object exists on backward branch 70
  Exception Details:
    Location:
      org/opendolphin/core/client/comm/ClientConnector.processResults(Ljava/util/List;Ljava/util/List;)V @105: goto
    Reason:
      Error exists in the bytecode
    Bytecode:
      0000000: 2a4e 2d57 2dbb 00c0 5905 bd00 0459 032b
      0000010: 593a 04c6 0010 1904 b900 c601 00b8 0091
      0000020: a700 0401 5359 042b c700 0701 a700 42bb
      0000030: 00c8 592b b900 c601 00b7 00cb 3a05 2bb9
      0000040: 00cf 0100 3a06 1906 b900 d401 0099 001f
      0000050: 1906 b900 d701 00c0 00d9 3a07 1905 1907
      0000060: b600 ddb9 00e0 0200 57a7 ffdd 1905 5306
      0000070: bd00 e259 0312 e453 5904 12e6 5359 0512
      0000080: e853 b700 ebb6 00ef 0157 bb00 f159 b700
      0000090: f23a 0819 0857 bb00 f159 b700 f23a 0919
      00000a0: 0957 013a 0a2b b900 cf01 003a 0b19 0bb9
      00000b0: 00d4 0100 9900 7619 0bb9 00d7 0100 12d9
      00000c0: b800 40c0 00d9 3a0a 2d19 0ab6 00f6 3a0c
      00000d0: 190c 5719 0cb8 005a 9900 0f19 0cc1 00f8
      00000e0: 9900 0704 a700 0403 9900 1619 0819 0c12
      00000f0: f8b8 0040 c000 f8b8 00fe 57a7 002c 190c
      0000100: b800 5a99 000f 190c c101 0099 0007 04a7
      0000110: 0004 0399 0014 1909 190c 1301 00b8 0040
      0000120: c001 00b8 00fe 57a7 ff86 2cb8 0104 c000
      0000130: abb6 0108 3a0d 190d 5719 0db8 005a 9900
      0000140: 2d19 0d19 08bb 010a 592a 2ab7 010b b801
      0000150: 0f12 c2b8 0040 c000 c2b9 0115 0200 0157
      0000160: 190d 1909 b901 1802 0001 57b1          
    Stackmap Table:
      full_frame(@35,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer})
      full_frame(@36,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer,Object[#141]})
      full_frame(@47,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer})
      full_frame(@70,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194],Object[#200],Object[#209]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer})
      full_frame(@108,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194],Object[#200],Object[#209]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer})
      full_frame(@110,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194]},{Object[#2],Uninitialized[#5],Uninitialized[#5],Object[#291],Object[#291],Integer,Object[#200]})
      full_frame(@173,{Object[#2],Object[#194],Object[#194],Object[#2],Object[#194],Top,Top,Top,Object[#241],Object[#241],Object[#217],Object[#209]},{})
      append_frame(@231,Object[#4])
      same_locals_1_stack_item_frame(@232,Integer)
      same_frame(@254)
      same_frame(@274)
      same_locals_1_stack_item_frame(@275,Integer)
      same_frame(@295)
      chop_frame(@298,1)
      append_frame(@363,Top,Object[#273])


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 9.244 secs

The error does not occur with groovy 2.3.2 or earlier.

How to reproduce:

• git clone https://github.com/canoo/open-dolphin.git
• cd open-dolphin/subprojects/client
• ../../gradlew clean test

The build is configured to compile against Groovy 2.3.4. Edit $rootProject/gradle.properties to change the value of the `groovyVersion` property.