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My code compiles fine in Eclipse, but when I try to compile from the commandline (via our ruby-based buildr system), I get this error message:
static import only from classes and interfaces Suggesting that static import of public static fields is not permitted. What should I look for to help diagnose this problem? How can I fix it?
Update: per @Ted's request, the constant declaration in the referenced file:
public static final String NULL = "<NULL>"; and the (bowdlerized) reference in the referring file:
import static my.path.MyClass.NULL; 
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This is Expert Verified Answer The static import feature of Java 5 facilitate the java programmer to access any static member of a class directly. There is no need to qualify it by the class name.
If you overuse the static import feature, it can make your program unreadable and unmaintainable, polluting its namespace with all the static members you import. Readers of your code (including you, a few months after you wrote it) will not know which class a static member comes from.
The import allows the java programmer to access classes of a package without package qualification. The static import feature allows to access the static members of a class without the class qualification.
My guess is that Eclipse and buildr are using either different Java compiler versions or different compiler flags. There's a bug in the Java 7 compiler (bug ID: 715906) that generates this error when you statically import specific fields. The work-around is to use a wildcard static import. So instead of:
import static pkg.Class.staticField; do this:
import static pkg.Class.*; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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