Guava 15 doesn't work on Oracle Java 7u40

[GoogleCodeExporter]

java.lang.VerifyError: class com.google.common.collect.EmptyImmutableList 
overrides final method toArray.([Ljava/lang/Object;)[Ljava/lang/Object;

The 14.0.1 version works perfectly.  

Original issue reported on code.google.com by sspirido...@gmail.com on 20 Sep 2013 at 9:58

[GoogleCodeExporter]

This sounds like there may be multiple versions of Guava on the classpath. If 
the problem started with 7u40 or 14.0.1, that may mean that the JDK happens to 
load a different version of one of the classes than it did with previous 
versions.

I've tried to reproduce the problem but had no luck. If I can reproduce your 
setup, I can investigate further.

$ cat Foo.java
import com.google.common.collect.ImmutableList;

public class Foo {
  public static void main(String[] args) {
    ImmutableList.of().toArray();
    ImmutableList.of().toArray(new Object[0]);
  }
}
$ /tmp/jdk1.7.0_40/bin/javac -cp $HOME/guava-15.0.jar Foo.java && 
/tmp/jdk1.7.0_40/bin/java -cp .:$HOME/guava-15.0.jar Foo
<success>

Original comment by cpov...@google.com on 20 Sep 2013 at 1:41

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Hmm, yes, there are definitely two versions of Guava on the classpath. You can 
tell because EmptyImmutableList doesn't exist in Guava 15.

Original comment by cpov...@google.com on 20 Sep 2013 at 1:45

• Changed state: Invalid

[GoogleCodeExporter]

This issue has been migrated to GitHub.

It can be found at https://github.com/google/guava/issues/<issue id>

Original comment by cgdecker@google.com on 1 Nov 2014 at 4:12

• Added labels: MigratedToGitHub

[GoogleCodeExporter]

Original comment by cgdecker@google.com on 3 Nov 2014 at 9:08

• Added labels: Restrict-AddIssueComment-Commit