[jboss-jira] [JBoss JIRA] (DROOLS-4849) SudokuExample cannot solve hard samples any more in Drools 7
Didier Loiseau created DROOLS-4849:
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Summary: SudokuExample cannot solve hard samples any more in Drools 7
Key: DROOLS-4849
URL: https://issues.redhat.com/browse/DROOLS-4849
Project: Drools
Issue Type: Bug
Affects Versions: 7.30.0.Final
Reporter: Didier Loiseau
Assignee: Mario Fusco
It appears {{SudokuExample}} is capable to resolve the Simple and Medium samples, but none
of the Hard ones. They resolve a few cells but end with
{quote}
Sorry - can't solve this grid.
{quote}
in the console.
With explain = true, I can see that the "single" and "hidden single"
rules fire (not always both, depends on the puzzle), but clearly when it stops, at least
the latter should still fire for some cells.
There is also a small bug in the code, which is that the {{unsolvable}} flag is not reset
during setup, so when you get the above error you also get it for any other example you
solve afterwards.
I have checked with Drools 6.5.0.Final (checked out the examples from GitHub) and the
solver works fine. The Sudoku example appears to be mostly the same though.
I am running the examples with Java 8 from IntelliJ or command line, if that matters. I
tested this on 2 different machines.
It is a bit unfortunate because it is the first example in the GUI.
Full console output for sample Hard 1:
{code}
12:14:28.256 [main] INFO o.d.c.k.b.impl.ClasspathKieProject.notifyKieModuleFound:133 -
Found kmodule:
file:/C:/Users/Public/Documents/projects/drools/drools-examples/target/classes/META-INF/kmodule.xml
12:14:30.424 [main] WARN
o.d.c.k.b.impl.ClasspathKieProject.getPomPropertiesFromFileSystem:322 - Unable to find
pom.properties in
/C:/Users/Public/Documents/projects/drools/drools-examples/target/classes
12:14:30.475 [main] INFO
o.d.c.k.b.impl.ClasspathKieProject.generatePomPropertiesFromPom:354 - Recursed up folders,
found and used pom.xml C:\Users\Public\Documents\projects\drools\drools-examples\pom.xml
12:14:42.619 [AWT-EventQueue-0] WARN
o.d.c.k.builder.impl.KieBuilderImpl.packageNameForFile:394 - File
'org/drools/games/wumpus/server/paintCave.drl' is in folder
'org/drools/games/wumpus/server' but declares package
'org.drools.games.wumpus.server.view'. It is advised to have a correspondance
between package and folder names.
12:14:42.632 [AWT-EventQueue-0] WARN
o.d.c.k.builder.impl.KieBuilderImpl.packageNameForFile:394 - File
'org/drools/games/wumpus/server/paintSensor.drl' is in folder
'org/drools/games/wumpus/server' but declares package
'org.drools.games.wumpus.server.view'. It is advised to have a correspondance
between package and folder names.
12:14:42.687 [AWT-EventQueue-0] WARN
o.d.c.k.builder.impl.KieBuilderImpl.packageNameForFile:394 - File
'org/drools/games/wumpus/server/ui.drl' is in folder
'org/drools/games/wumpus/server' but declares package
'org.drools.games.wumpus.server.view'. It is advised to have a correspondance
between package and folder names.
Validation complete.
Col: 0 Col: 1 Col: 2 Col: 3 Col: 4 Col: 5 Col: 6 Col: 7
Col: 8
Row 0: 2 4 7 9 2 4 6 4 67 9 23 6 9 --- 5 --- --- 1 --- 3 67 9 --- 8
--- 4 67
Row 1: 12 7 9 --- 8 --- 1 67 9 23 6 9 --- 4 --- 23 6 1 3 67 9 3
67 9 --- 5 ---
Row 2: 1 4 9 1 456 --- 3 --- 6 89 --- 7 --- 6 8 --- 2 --- 4
6 9 1 4 6
Row 3: 1234 1234 1 4 1 5 8 --- 6 --- 5 78 5 7 45
7 --- 9 ---
Row 4: --- 6 --- --- 7 --- --- 5 --- --- 4 --- --- 2 --- --- 9 --- --- 8 --- --- 1
--- --- 3 ---
Row 5: --- 8 --- 12 4 1 4 9 1 5 --- 3 --- 5 7 567
4567 2 4 67
Row 6: 1 3 7 1 3 6 --- 2 --- 3 56 --- 8 --- 3 56 --- 4 --- 3
567 9 1 67
Row 7: --- 5 --- 1 34 6 1 4 678 3 6 --- 9 --- 34 6 1 3 67 --- 2
--- 1 678
Row 8: 34 --- 9 --- 4 6 8 --- 7 --- --- 1 --- 23456 3 56 3
56 6 8
Sorry - can't solve this grid.
{code}
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