Java - How to import 'Reflections' class?

Question

I'm trying to use Reflections classes as suggested here stackoverflow.com/questions/12538761/

Reflections reflections = new Reflections("my.project.prefix");
Set<Class<? extends SomeType>> subTypes = 
        reflections.getSubTypesOf(SomeType.class);
Set<SomeType> someTypes = new HashSet<SomeType>(subTypes.size());
for (Class<? extends SubType> subType : subTypes) {
    someTypes.add(subType.newInstance());
}

However, I cant seem to import the necessary package. NetBeans cant find it, and also I tried importing java.lang.reflections but it doesn't do it. I can see java.lang.Class, but I don't see Reflections class anywhere.

"I tried importing java.lang.reflections but it doesn't do it." That might just have to do with the fact that there is no such package as `java.lang.reflections`. — Lew Bloch, May 26 '17 at 15:17
Which does not contain the type you're trying to import as the Javadocs clearly show. http://docs.oracle.com/javase/8/docs/api/java/lang/reflect/package-frame.html — Lew Bloch, May 26 '17 at 16:07

score 4 · Answer 1 · answered May 26 '17 at 15:14

Reflections isn't part of Java, it's a 3rd party library. First, you need to add the relevant Jar to your classpath. E.g., if you're using Maven, you could add the following dependency:

<dependency>
    <groupId>org.reflections</groupId>
    <artifactId>reflections</artifactId>
    <version>0.9.11</version>
</dependency>

Once you've done that, you need to import the Reflections class, as you noted. It is located in the org.reflections package:

import org.reflections.Reflections

score 3 · Accepted Answer · answered May 26 '17 at 15:13

3

It's a library https://github.com/ronmamo/reflections Add it via Maven, Gradle or manually

answered May 26 '17 at 15:13

Piotr Gwiazda

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Java - How to import 'Reflections' class?

2 Answers2