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This instrumented code fails to execute

This code:

var reflections = new Reflections("my.package");
var types = reflections
.getTypesAnnotatedWith(GenerateMessages.class)
.stream();
types.map(Class::getFields).flatMap(Stream::of)
.forEach(field -> {
try {
String key = (String) field.get(null); // <- FAILS HERE
} catch (IllegalArgumentException | IllegalAccessException e) {
this.getLogger().error("Cannot access field", e);
}
});

fails when instrumented by Clover on the line commented with FAILS HERE. This is the thrown exception:

java.lang.ClassCastException: class com_atlassian_clover.TestNameSniffer$1 
cannot be cast to class java.lang.String
(com_atlassian_clover.TestNameSniffer$1 is in unnamed module of loader
java.net.URLClassLoader @3141366; java.lang.String is in module java.base of loader 'bootstrap')

 

1 answer

1 accepted

0 votes
Answer accepted

I've just realized the code assumes that the fields of those classes are of type String, since that is the adopted convention in that project, but I assume Clover is adding other fields so I need to be more careful on casting!

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