Current snapshots failing with JDK 7

[Thomas Broyer]

Hi all,

Current snapshots fail with JDK 7:

[INFO] [INFO]    Tracing compile failure path for type 'java.util.Comparator'

[INFO] [INFO]       [ERROR] Errors in 'jar:file:/home/travis/build/tbroyer/gwt-maven-plugin/target/it-repo/com/google/gwt/gwt-user/2.8.0-SNAPSHOT/gwt-user-2.8.0-SNAPSHOT.jar!/com/google/gwt/emul/java/util/Comparator.java'

[INFO] [INFO]          [ERROR] Line 1: The type java.lang.invoke.SerializedLambda cannot be resolved. It is indirectly referenced from required .class files

(see https://travis-ci.org/tbroyer/gwt-maven-plugin/jobs/141919077#L410)

Is this because the snaphots are built with JDK 8 (see http://www.draconianoverlord.com/2014/04/01/jdk-compatibility.html for instance) or that we actually no longer support JDK 7 (without noticing it) ?

[Manuel Carrasco Moñino]

I can configure the existing jenkins build (gwt-java7) using jdk7 to upload the snapshot instead of the current one (gwt) which uses jdk8. I guess it should fix the problem

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[Thomas Broyer]

On Sunday, July 3, 2016 at 1:45:23 PM UTC+2, Manuel Carrasco Moñino wrote:

I can configure the existing jenkins build (gwt-java7) using jdk7 to upload the snapshot instead of the current one (gwt) which uses jdk8. I guess it should fix the problem

Only "problem" is that it could possibly upload  snapshots whose Java 8 tests are actually failing, because they wouldn't be run in the jdk7 build…

But yes, we can at least try that.

 

El dom., 3 jul. 2016 a las 1:07, Thomas Broyer (<t.br...@gmail.com>) escribió:

Hi all,

Current snapshots fail with JDK 7:

[INFO] [INFO]    Tracing compile failure path for type 'java.util.Comparator'

[INFO] [INFO]       [ERROR] Errors in 'jar:file:/home/travis/build/tbroyer/gwt-maven-plugin/target/it-repo/com/google/gwt/gwt-user/2.8.0-SNAPSHOT/gwt-user-2.8.0-SNAPSHOT.jar!/com/google/gwt/emul/java/util/Comparator.java'

[INFO] [INFO]          [ERROR] Line 1: The type java.lang.invoke.SerializedLambda cannot be resolved. It is indirectly referenced from required .class files

(see https://travis-ci.org/tbroyer/gwt-maven-plugin/jobs/141919077#L410)

Is this because the snaphots are built with JDK 8 (see http://www.draconianoverlord.com/2014/04/01/jdk-compatibility.html for instance) or that we actually no longer support JDK 7 (without noticing it) ?

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[Jens]

Hm maybe something like

https://github.com/gwtproject/gwt/commit/3586e7bc10777c7d479889a5f20927cbf2aceb97

is needed for SerializedLambda as well?

[Thomas Broyer]

Revisiting this while smoke-testing pre-RC1; looks like you were right: we need to stub SerializedLambda too.