@Generated not found

[sockeqwe]

Hi,
I think it's a problem with my environment (java 1.7.0_51, 64 bit, mac os 10.10), but I'm using Android Studio and tried to setup a simple android sample application with dagger 2 as dependency injection framework.

My compiler can not resolve the @Generated annotation in class path (import javax.annotation.Generated;) which is used in all dagger generated classes.

My gradle build file looks like this:

compile 'com.google.dagger:dagger:2.0-SNAPSHOT'
provided 'com.google.dagger:dagger-compiler:2.0-SNAPSHOT'

Any idea what could be wrong?
Do I have to add the javax annotation dependency to my build.gradle?

[radzio]

@sockeqwe: just fast fix but did you tried to add this:

compile 'org.glassfish:javax.annotation:10.0-b28'

[sockeqwe]

jep, that works!
I think this dependecy should be part of the core module dependency, shouldn't it?

Im wondering if I'm the only one who is facing this problem?

[sockeqwe]

Oh, it seems that it's working fine with provided scope, but I'm not sure why (the dependency is still missing?!?!?).

My problem was, that I have used apt instead of provided. In the apt generated code @Generated can not be resolved. After cleaning the project and using provided everything works. I'm still wondering why it works with provided, because the dependency to @Generated is missing ... I guess it's because @Generated has retention policy source ...

[tbroyer]

javax.annotation.Generated is part of the JDK since at least Java 6, so maybe the problem is that you're using the Android API: square/javapoet#139 (comment)
(disclaimer: I don't do Android development)

That said, you need @Generated to be in your compilation classpath (compile or provided) because it's part of a (generated) source file that will be compiled; not in your processor path (apt) which is about the code that will generate that java source. And because it's an annotation that's not needed at runtime, iff you need to include a dependency to get that annotation in the compilation classpath (btw javax.annotation:javax.annotation-api:1.2 is more recent), then use the provided scope.

[JakeWharton]

Yep. Android's API jar lacks Generated. You will always need to include an
additional dependency on the glassfish jar for Android projects.
On Dec 17, 2014 2:43 AM, "Thomas Broyer" notifications@github.com wrote:

javax.annotation.Generated is part of the JDK since at least Java 6, so
maybe the problem is that you're using the Android API: square/javapoet#139
(comment)
square/javapoet#139 (comment)
(disclaimer: I don't do Android development)

That said, you need @generated to be in your compilation classpath (
compile or provided) because it's part of a (generated) source file that
will be compiled; not in your processor path (apt) which is about the
code that will generate that java source. And because it's an annotation
that's not needed at runtime, iff you need to include a dependency to get
that annotation in the compilation classpath (btw
javax.annotation:javax.annotation-api:1.2 is more recent), then use the
provided scope.

—
Reply to this email directly or view it on GitHub
#95 (comment).

[cgruber]

this is a local project configuration matter. If you're targetting a JVM that doesnt' have it, you need to add it, per the instructions above.

[mttkay]

Why Glassfish? Why not the official Java annotations from Oracle?

https://repo1.maven.org/maven2/javax/annotation/javax.annotation-api/1.2/javax.annotation-api-1.2.pom

[svenjacobs]

I think the correct dependency which should be added is javax.annotation:jsr250-api:1.0. At least this one only contains the annotations from JSR 250.

I added this to my Android Gradle project:

provided 'javax.annotation:jsr250-api:1.0'

[ronshapiro]

I just submitted some code (and will be linked to this issue in the next MOE sync) that omits @Generated and instead includes a comment about the generation step if javax.annotation.Generated is not on the compile-time classpath.

[ronshapiro]

The commit which omits @generated is now synced and should be in a 2.1-SNAPSHOT

[rafnogueira]

Probably this happened because the system JDK_HOME is more upgraded then the JDK that comes with Android Studio

[RiteshAdulkar]

I have installed sdkman more here: https://sdkman.io/usage#installdefault, downgraded java version from 11 to 8 and this error did go away. That way it worked for me.