Friday, July 29, 2016

Re: 2.8.0 RC1 is here!

Does using the compiler flag: 


as mentioned in the workaround solve this issue. 

Am Freitag, 29. Juli 2016 16:26:14 UTC+2 schrieb Thomas Broyer:

On Friday, July 29, 2016 at 1:41:33 PM UTC+2, kimi wrote:
ok, didn"t know gin work with jdk7, just saw this in the release note :
i'm on jdk7, guava18 and gin 2.

The thing with GIN is that it uses a custom ClassLoader to be able to "read" super-source classes, and code generated by GWT generators, and that custom classloader reads bytecode generated by the GWT Compiler, which in 2.8.0-rc1 will always generate Java 8 bytecode, so it'll fail in a Java 7 VM. This is why I said that it would be Java 7 that blocks you rather than GIN.
If you can move to Dagger 2, then IMO you should do it anyway (missing features: assisted inject –can be replaced with Google AutoFactory–, private modules, and static injection); and if you used GinModuleAdapter, you can move to Guice's DaggerAdapter.

FWIW, our project at work still compiles with JDK 7 and GIN 1.5.0; I just updated GWT to 2.8.0-rc1 and Guava to 20.0-SNAPSHOT (note: I haven't tested SuperDevMode yet, but I'm rather confident)
If I update to GIN 2.1.2 (which uses its custom classloader), than it fails with:
[INFO] Caused by: java.lang.UnsupportedClassVersionError: xxx/xxx/xxx/XxxGinjector : Unsupported major.minor version 52.0

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