Github user marmbrus commented on the pull request:
https://github.com/apache/spark/pull/307#issuecomment-39518909
Hey, I think this is causing some problems with our travis and sbt builds:
On travis:
```
[warn] Class javax.annotation.Nullable not found - continuing with a stub.
[warn] Caught: java.lang.NullPointerException while parsing annotations in
/home/travis/build/apache/spark/lib_managed/bundles/guava-14.0.1.jar(com/google/common/base/Optional.class)
[error] error while loading Optional, class file
'/home/travis/build/apache/spark/lib_managed/bundles/guava-14.0.1.jar(com/google/common/base/Optional.class)'
is broken
[error] (class java.lang.RuntimeException/bad constant pool index: 1025 at
pos: 2801)
[warn] two warnings found
[error] one error found
[error] (core/compile:compile) Compilation failed
[error] Total time: 158 s, completed Apr 3, 2014 11:14:07 PM
```
Locally it doesn't completely fail the build, but does cause warnings:
```
[info] Compiling 35 Scala sources to
/Users/marmbrus/workspace/spark/sql/core/target/scala-2.10/classes...
[warn] Class javax.annotation.Nullable not found - continuing with a stub.
[warn] one warning found
```
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