TwoCheckers.java

// Expected error appears:
// $ch/bin-devel/javac -processor org.checkerframework.checker.tainting.TaintingChecker TwoCheckers.java
// $ch/bin-devel/javac -processor org.checkerframework.checker.tainting.TaintingChecker,regex TwoCheckers.java

// Expected error is suppressed:
// $ch/bin-devel/javac -processor regex,org.checkerframework.checker.tainting.TaintingChecker TwoCheckers.java

// Compare these two executions:
// $ch/bin-devel/javac -processor org.checkerframework.checker.tainting.TaintingChecker,regex TwoCheckers.java -AprintAllQualifiers -Ashowchecks > out-good.txt
// $ch/bin-devel/javac -processor regex,org.checkerframework.checker.tainting.TaintingChecker TwoCheckers.java -AprintAllQualifiers -Ashowchecks > out-bad.txt

// Turning off caches has no effect:
// $ch/bin-devel/javac -processor regex,org.checkerframework.checker.tainting.TaintingChecker TwoCheckers.java -AprintAllQualifiers -Ashowchecks -AatfDoNotCache AAatfDoNotReadCache > out-bad-nocache.txt

import org.checkerframework.checker.tainting.qual.Untainted;

public class TwoCheckers {

    void client(String a) {
        //:: error: (argument.type.incompatible)
        requiresUntainted(a);
    }

    void requiresUntainted(@Untainted String b) {}
}