Project does not compile with Java8

[nmorel]

Project does not compile with Java8

[nmorel]

It's odd. It's like the compiler doesn't see external source files.
It only fails on type contained in jackson-annotations or jax-rs api.

[nmorel]

GWTP is also impacted :

Tracing compile failure path for type 'com.gwtplatform.dispatch.rest.client.DefaultRestRequestBuilderFactory'
      [ERROR] Errors in 'com/gwtplatform/dispatch/rest/client/DefaultRestRequestBuilderFactory.java'
         [ERROR] Line 144: MediaType cannot be resolved to a variable
         [ERROR] Line 26: The import javax.ws cannot be resolved
         [ERROR] Line 145: HttpHeaders cannot be resolved to a variable
         [ERROR] Line 27: The import javax.ws cannot be resolved
         [ERROR] Line 144: HttpHeaders cannot be resolved to a variable

[confile]

Yes I use GWTP as well.

[nmorel]

I just compiled my gwtp example with java 1.8, GWT 2.8.0-SNAPSHOT, GWTP 1.4-SNAPSHOT and gwt-jackson-0.7.1-SNAPSHOT without errors.

[nmorel]

I only see the same kind of error in the guava extension. But I see that this is a known issue with guava.

[confile]

Could you please link the issue?

[nmorel]

https://code.google.com/p/google-web-toolkit/issues/detail?id=9036

[nmorel]

Not sure it's the same problem though. But there is not much I can do I think.

[confile]

You can at least rate the issue.

[bauna]

I have made some changes to make it compile with java8 but not ready to be merged:
https://github.com/bauna/gwt-jackson/tree/gwt280

[nmorel]

I made a few tweaks around cast. With last snapshot of gwt and guava, I have no issues on compilation and tests.

[bauna]

It works except for one guava class: TreeMultisetJsonDeserializer (I think that the issue is because it requires that the generic T must be Comparable)

[INFO]    Adding '100' new generated units
[INFO]       See snapshot: /tmp/gwtjackson.java.lang.ObjectBeanJsonDeserializerImpl7502692652060705091.java
[INFO]       Ignored 1 unit with compilation errors in first pass.
[INFO] Compile with -strict or with -logLevel set to TRACE or DEBUG to see all errors.
[INFO]    [ERROR] Errors in '/home/bauna/dev/skymira/eforms/eforms-ui/target/.generated/gwtjackson/java/lang/ObjectBeanJsonDeserializerImpl.java'
[INFO]       [ERROR] Line 140: The method newInstance(JsonDeserializer<T>) in the type TreeMultisetJsonDeserializer is not applicable for the arguments (ObjectBeanJsonDeserializerImpl)
[INFO]       See snapshot: /tmp/gwtjackson.java.lang.ObjectBeanJsonDeserializerImpl2465895653503980292.java
[INFO]    Tracing compile failure path for type 'gwtjackson.java.lang.ObjectBeanJsonDeserializerImpl'
[INFO]       [ERROR] Errors in '/home/bauna/dev/skymira/eforms/eforms-ui/target/.generated/gwtjackson/java/lang/ObjectBeanJsonDeserializerImpl.java'
[INFO]          [ERROR] Line 140: The method newInstance(JsonDeserializer<T>) in the type TreeMultisetJsonDeserializer is not applicable for the arguments (ObjectBeanJsonDeserializerImpl)
[INFO]    [ERROR] Hint: Check that the type name 'gwtjackson.java.lang.ObjectBeanJsonDeserializerImpl' is really what you meant
[INFO]    [ERROR] Hint: Check that your classpath includes all required source roots
[INFO] 2015-11-26 14:35:28,085 user:na INFO  org.hibernate.validator.util.Version - Hibernate Validator 4.1.0.Final
[INFO] 2015-11-26 14:35:28,091 user:na INFO  org.hibernate.validator.engine.resolver.DefaultTraversableResolver - Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.

[nmorel]

The deserializers no longer require Comparable.

[nmorel]

Seems to be working now