AboutEquality updated but not being read through correctly

[matyb]

AboutEquality updated but not being read through correctly

[matyb]

i am on it. i will look into this when i get out of work. thanks for sharing, it sould be resolved soon.

[matyb]

mis clicked on comment and close :)

[matyb]

My apologies pbattisson, I'm trying to follow and having a bit of trouble forgive me :)

tldr;
I recommend:

• make sure u saved the file
• restart the app, maybe it is not detecting you saved the file
• delete the data/file_hashes.dat file and restart the app (might run for a bit longer than usual)
• delete the data and bin directories and restart from the run script. that should destroy your progress and fix any issues related to any of the run time compilation stuff; which might explain the symptoms. If you wish to resume, you can still run each remaning script passing the suite's class name to the run script. ex: /run.sh intermediate.AboutEquality

We can rule out java, but perhaps your behind on an OS update? Here's what I'm running to attempt reproducing:

werd-mbp:src matyb$ sw_vers & java -version
ProductName: Mac OS X
ProductVersion: 10.7.1
BuildVersion: 11B26
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03-383-11A511)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02-383, mixed mode)

I tried running just the AboutEquality suite:
./run.sh intermediate.AboutEquality

and:
./run.sh

both ran through the AboutEquality suite (fix + save in sequence, like a normal person running through the koans) without issue.

Please respond if that helps, and if not, respond anyway :P
I'd like to know if the line# and method name and code are 100% accurate, or if I'm missing any details.

PS - the program output is like an old teletype app, it uses line breaks to clear console. you can paste the entire playback into here (or in an email if it's too long).

Cheers,
Mat

[pbattisson]

Okay tried all of those other than deleting everything and it fails still:

Ponder what's going wrong in the AboutEquality class's noObjectShouldbeEqualToNull method.

Line 26 may offer a clue as to how you may progress, now make haste!

What went wrong:
expected: but was:

Level: Intermediate
Progress: [XXXXXXXXXXX---------------------------------------] 2/9
Remaining Suites: AboutEquality

Edit & save a koan to reload or enter 'Q' to exit

The code on line 26 is 

@Koan 
public void noObjectShouldbeEqualToNull() {
    assertEquals(new Object().equals(null),false);
}

Will try doing the full reload at some point over the weekend. You have exactly the same Mac setup as me, which makes it weirder.

Thanks for your help

Paul

[pbattisson]

I fact, just tried deleting that test and reloading the system and it doesn't recognise the test has gone. Curiouser ad curiouser....

[matyb]

pbattisson, thanks for being patient. I think you may have deleted the source file and not the class. If your source contains the same code and you deleted the class file, you would see very different output.

Without the class file the system will recompile it. It works correctly when i copy and paste your code, so if it compiles with that code that's guarenteed to be what the app evaluates. Make sure your deleting the class file from the bin directory. If your using an ide you may have more than one copy of the class, so get rid of the one the app is using.

Let me know if that helps.

[pbattisson]

Nope, still nothing. Next time I get a chance I am going to download the entire thing again and start fromt he beginning again.

Should be on Wednesday so let you know,

[matyb]

hmmmm I'm convinced your not deleting the class. The app compiles it and runs the koan methods in it. If you did it would have compiled a new copy with your corrected code, or provided an exception. If you deleted it, there would be no way for the app to know what it used to be.

If your having trouble finding the class file in koans/bin, then copy your koans/src directory over a new install. If you still have this problem then I guarantee the problem is with the src file and in that case you can copy over it from the archive you got off github.

[pbattisson]

---

[javac, -d, /Users/paulbattisson/Documents/Learning/java-koans/koans/bin, -classpath, /Users/paulbattisson/Documents/Learning/java-koans/koans/lib/koans.jar, /Users/paulbattisson/Documents/Learning/java-koans/koans/src/intermediate/AboutEquality.java]
/Users/paulbattisson/Documents/Learning/java-koans/koans/src/intermediate/AboutEquality.java does not compile. exit status was: 1

---

java.io.FileNotFoundException: /Users/paulbattisson/Documents/Learning/java-koans/koans/bin/intermediate/AboutEquality.class (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java:120)
at java.io.FileInputStream.(FileInputStream.java:79)
at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:70)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:161)
at com.sandwich.util.io.DynamicClassLoader.loadClass(DynamicClassLoader.java:97)
at com.sandwich.util.io.DynamicClassLoader.loadClass(DynamicClassLoader.java:74)
at com.sandwich.koan.runner.RunKoans.constructSuite(RunKoans.java:115)
at com.sandwich.koan.runner.RunKoans.runKoans(RunKoans.java:56)
at com.sandwich.koan.runner.RunKoans.run(RunKoans.java:41)
at com.sandwich.koan.constant.ArgumentType.run(ArgumentType.java:73)
at com.sandwich.koan.cmdline.CommandLineArgument.run(CommandLineArgument.java:36)
at com.sandwich.koan.cmdline.CommandLineArgumentRunner.run(CommandLineArgumentRunner.java:26)
at com.sandwich.koan.runner.AppLauncher.main(AppLauncher.java:18)
Exception in thread "main" java.lang.RuntimeException: java.lang.ClassFormatError: Truncated class file
at com.sandwich.koan.constant.ArgumentType.run(ArgumentType.java:80)
at com.sandwich.koan.cmdline.CommandLineArgument.run(CommandLineArgument.java:36)
at com.sandwich.koan.cmdline.CommandLineArgumentRunner.run(CommandLineArgumentRunner.java:26)
at com.sandwich.koan.runner.AppLauncher.main(AppLauncher.java:18)
Caused by: java.lang.ClassFormatError: Truncated class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
at com.sandwich.util.io.DynamicClassLoader.loadClass(DynamicClassLoader.java:109)
at com.sandwich.util.io.DynamicClassLoader.loadClass(DynamicClassLoader.java:74)
at com.sandwich.koan.runner.RunKoans.constructSuite(RunKoans.java:115)
at com.sandwich.koan.runner.RunKoans.runKoans(RunKoans.java:56)
at com.sandwich.koan.runner.RunKoans.run(RunKoans.java:41)
at com.sandwich.koan.constant.ArgumentType.run(ArgumentType.java:73)
... 3 more

[matyb]

Awesome! Thats progress definitely. It looks like the AboutEquality java file has an error keeping it from compiling, replace the java file and rerun, it should work fine then.

Let me know.

[pbattisson]

Yeah! Working like a treat, thanks for the help :-)