13:39:50 [PREPARING] [INFO] Scanning for projects...
13:39:50 [PREPARING] [INFO]
13:39:50 [PREPARING] [INFO] ---------------< ch.fhnw.prog1.exercise:lists-sets-maps >---------------
13:39:50 [PREPARING] [INFO] Building lists-sets-maps 1.0-SNAPSHOT
13:39:50 [PREPARING] [INFO] from pom.xml
13:39:50 [PREPARING] [INFO] --------------------------------[ jar ]---------------------------------
13:39:51 [PREPARING] [INFO]
13:39:51 [PREPARING] [INFO] --- clean:3.2.0:clean (default-clean) @ lists-sets-maps ---
13:39:52 [PREPARING] [INFO]
13:39:52 [PREPARING] [INFO] --- resources:3.4.0:resources (default-resources) @ lists-sets-maps ---
13:39:53 [PREPARING] [INFO] skip non existing resourceDirectory /git_81065054195568086/src/main/resources
13:39:53 [PREPARING] [INFO]
13:39:53 [PREPARING] [INFO] --- compiler:3.15.0:compile (default-compile) @ lists-sets-maps ---
13:39:53 [PREPARING] [INFO] Recompiling the module because of changed source code.
13:39:53 [PREPARING] [INFO] Compiling 2 source files with javac [debug target 25] to target/classes
13:39:54 [PREPARING] [INFO] -------------------------------------------------------------
13:39:54 [PREPARING] [ERROR] COMPILATION ERROR :
13:39:54 [PREPARING] [INFO] -------------------------------------------------------------
13:39:54 [PREPARING] [ERROR] /git_81065054195568086/src/main/java/ch/fhnw/prog1/exercise/pair/PairFinder.java:[13,9] cannot find symbol
13:39:54 [PREPARING] symbol: class List
13:39:54 [PREPARING] location: class ch.fhnw.prog1.exercise.pair.PairFinder
13:39:54 [PREPARING] [ERROR] /git_81065054195568086/src/main/java/ch/fhnw/prog1/exercise/pair/PairFinder.java:[13,37] cannot find symbol
13:39:54 [PREPARING] symbol: class ArrayList
13:39:54 [PREPARING] location: class ch.fhnw.prog1.exercise.pair.PairFinder
13:39:54 [PREPARING] [INFO] 2 errors
13:39:54 [PREPARING] [INFO] -------------------------------------------------------------
13:39:54 [PREPARING] [INFO] ------------------------------------------------------------------------
13:39:54 [PREPARING] [INFO] BUILD FAILURE
13:39:54 [PREPARING] [INFO] ------------------------------------------------------------------------
13:39:54 [PREPARING] [INFO] Total time: 4.234 s
13:39:54 [PREPARING] [INFO] Finished at: 2026-03-28T13:39:54Z
13:39:54 [PREPARING] [INFO] ------------------------------------------------------------------------
13:39:54 [PREPARING] [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.15.0:compile (default-compile) on project lists-sets-maps: Compilation failure: Compilation failure:
13:39:54 [PREPARING] [ERROR] /git_81065054195568086/src/main/java/ch/fhnw/prog1/exercise/pair/PairFinder.java:[13,9] cannot find symbol
13:39:54 [PREPARING] [ERROR] symbol: class List
13:39:54 [PREPARING] [ERROR] location: class ch.fhnw.prog1.exercise.pair.PairFinder
13:39:54 [PREPARING] [ERROR] /git_81065054195568086/src/main/java/ch/fhnw/prog1/exercise/pair/PairFinder.java:[13,37] cannot find symbol
13:39:54 [PREPARING] [ERROR] symbol: class ArrayList
13:39:54 [PREPARING] [ERROR] location: class ch.fhnw.prog1.exercise.pair.PairFinder
13:39:54 [PREPARING] [ERROR] -> [Help 1]
13:39:54 [PREPARING] [ERROR]
13:39:54 [PREPARING] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
13:39:54 [PREPARING] [ERROR] Re-run Maven using the -X switch to enable full debug logging.
13:39:54 [PREPARING] [ERROR]
13:39:54 [PREPARING] [ERROR] For more information about the errors and possible solutions, please read the following articles:
13:39:54 [PREPARING] [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
13:39:54 [PREPARING] Failed to build student submission
13:39:54 [PREPARING] HINT: ensure your code can be compiled locally before running AutoFeedback evaluation