Maven Verify failing on java6

[Aljoscha Krettek-2]

Hi Guys,
I just noticed that "mvn verify" is failing on master:

[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
(default-testCompile) on project flink-runtime: Compilation failure

[ERROR]
/home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
type parameters of <T>T cannot be determined; no unique maximal instance
exists for type variable T with upper bounds boolean,java.lang.Object

We had this problem before, does anyone remember what the problem is with
java6 here? Also, I'm not filing a bug but posting this here since it
should be handled quickly because a failing build looks bad.

--

aljoscha

[Robert Metzger]

Hi,
are you using OpenJDK or OracleJDK? There is a unfixed bug in Oracle JDK 6,
but I think that leads to a null pointer exception in the compiler.
Travis was able to build the current master with OpenJDK6 yesterday:
https://travis-ci.org/apache/incubator-flink/jobs/31142009

Robert



On Thu, Jul 31, 2014 at 9:13 AM, Aljoscha Krettek <[hidden email]>
wrote:

> Hi Guys,
> I just noticed that "mvn verify" is failing on master:
>
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
> (default-testCompile) on project flink-runtime: Compilation failure
>
> [ERROR]
>
> /home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
> type parameters of <T>T cannot be determined; no unique maximal instance
> exists for type variable T with upper bounds boolean,java.lang.Object
>
> We had this problem before, does anyone remember what the problem is with
> java6 here? Also, I'm not filing a bug but posting this here since it
> should be handled quickly because a failing build looks bad.
>
> --
>
> aljoscha
>

[Ufuk Celebi]

I think the problem is with the way I use PowerMock in the test:

boolean hasRequestedClose = Whitebox.getInternalState(queue, "hasRequestedClose");

Could you try whether changing it to Boolean works?

Best,

Ufuk

On 31 Jul 2014, at 09:45, Robert Metzger <[hidden email]> wrote:

> Hi,
> are you using OpenJDK or OracleJDK? There is a unfixed bug in Oracle JDK 6,
> but I think that leads to a null pointer exception in the compiler.
> Travis was able to build the current master with OpenJDK6 yesterday:
> https://travis-ci.org/apache/incubator-flink/jobs/31142009
>
> Robert
>
>
>
> On Thu, Jul 31, 2014 at 9:13 AM, Aljoscha Krettek <[hidden email]>
> wrote:
>
>> Hi Guys,
>> I just noticed that "mvn verify" is failing on master:
>>
>> [ERROR] Failed to execute goal
>> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
>> (default-testCompile) on project flink-runtime: Compilation failure
>>
>> [ERROR]
>>
>> /home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
>> type parameters of <T>T cannot be determined; no unique maximal instance
>> exists for type variable T with upper bounds boolean,java.lang.Object
>>
>> We had this problem before, does anyone remember what the problem is with
>> java6 here? Also, I'm not filing a bug but posting this here since it
>> should be handled quickly because a failing build looks bad.
>>
>> --
>>
>> aljoscha
>>

[Stephan Ewen]

Or try "boolean hasRequestedClose = Whitebox.<Boolean>getInternalState(queue,
"hasRequestedClose");"


On Thu, Jul 31, 2014 at 10:35 AM, Ufuk Celebi <[hidden email]> wrote:

> I think the problem is with the way I use PowerMock in the test:
>
> boolean hasRequestedClose = Whitebox.getInternalState(queue,
> "hasRequestedClose");
>
> Could you try whether changing it to Boolean works?
>
> Best,
>
> Ufuk
>
> On 31 Jul 2014, at 09:45, Robert Metzger <[hidden email]> wrote:
>
> > Hi,
> > are you using OpenJDK or OracleJDK? There is a unfixed bug in Oracle JDK
> 6,
> > but I think that leads to a null pointer exception in the compiler.
> > Travis was able to build the current master with OpenJDK6 yesterday:
> > https://travis-ci.org/apache/incubator-flink/jobs/31142009
> >
> > Robert
> >
> >
> >
> > On Thu, Jul 31, 2014 at 9:13 AM, Aljoscha Krettek <[hidden email]>
> > wrote:
> >
> >> Hi Guys,
> >> I just noticed that "mvn verify" is failing on master:
> >>
> >> [ERROR] Failed to execute goal
> >> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
> >> (default-testCompile) on project flink-runtime: Compilation failure
> >>
> >> [ERROR]
> >>
> >>
> /home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
> >> type parameters of <T>T cannot be determined; no unique maximal instance
> >> exists for type variable T with upper bounds boolean,java.lang.Object
> >>
> >> We had this problem before, does anyone remember what the problem is
> with
> >> java6 here? Also, I'm not filing a bug but posting this here since it
> >> should be handled quickly because a failing build looks bad.
> >>
> >> --
> >>
> >> aljoscha
> >>
>
>

[Ufuk Celebi]

I've changed this.

Could you checkout the current master and then report back? :)

On 31 Jul 2014, at 10:40, Stephan Ewen <[hidden email]> wrote:

> Or try "boolean hasRequestedClose = Whitebox.<Boolean>getInternalState(queue,
> "hasRequestedClose");"
>
>
> On Thu, Jul 31, 2014 at 10:35 AM, Ufuk Celebi <[hidden email]> wrote:
>
>> I think the problem is with the way I use PowerMock in the test:
>>
>> boolean hasRequestedClose = Whitebox.getInternalState(queue,
>> "hasRequestedClose");
>>
>> Could you try whether changing it to Boolean works?
>>
>> Best,
>>
>> Ufuk
>>
>> On 31 Jul 2014, at 09:45, Robert Metzger <[hidden email]> wrote:
>>
>>> Hi,
>>> are you using OpenJDK or OracleJDK? There is a unfixed bug in Oracle JDK
>> 6,
>>> but I think that leads to a null pointer exception in the compiler.
>>> Travis was able to build the current master with OpenJDK6 yesterday:
>>> https://travis-ci.org/apache/incubator-flink/jobs/31142009
>>>
>>> Robert
>>>
>>>
>>>
>>> On Thu, Jul 31, 2014 at 9:13 AM, Aljoscha Krettek <[hidden email]>
>>> wrote:
>>>
>>>> Hi Guys,
>>>> I just noticed that "mvn verify" is failing on master:
>>>>
>>>> [ERROR] Failed to execute goal
>>>> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
>>>> (default-testCompile) on project flink-runtime: Compilation failure
>>>>
>>>> [ERROR]
>>>>
>>>>
>> /home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
>>>> type parameters of <T>T cannot be determined; no unique maximal instance
>>>> exists for type variable T with upper bounds boolean,java.lang.Object
>>>>
>>>> We had this problem before, does anyone remember what the problem is
>> with
>>>> java6 here? Also, I'm not filing a bug but posting this here since it
>>>> should be handled quickly because a failing build looks bad.
>>>>
>>>> --
>>>>
>>>> aljoscha
>>>>
>>
>>

[Aljoscha Krettek-2]

Travis told me it's alright now. :D


On Thu, Jul 31, 2014 at 11:58 AM, Ufuk Celebi <[hidden email]> wrote:

> I've changed this.
>
> Could you checkout the current master and then report back? :)
>
> On 31 Jul 2014, at 10:40, Stephan Ewen <[hidden email]> wrote:
>
> > Or try "boolean hasRequestedClose =
> Whitebox.<Boolean>getInternalState(queue,
> > "hasRequestedClose");"
> >
> >
> > On Thu, Jul 31, 2014 at 10:35 AM, Ufuk Celebi <[hidden email]>
> wrote:
> >
> >> I think the problem is with the way I use PowerMock in the test:
> >>
> >> boolean hasRequestedClose = Whitebox.getInternalState(queue,
> >> "hasRequestedClose");
> >>
> >> Could you try whether changing it to Boolean works?
> >>
> >> Best,
> >>
> >> Ufuk
> >>
> >> On 31 Jul 2014, at 09:45, Robert Metzger <[hidden email]> wrote:
> >>
> >>> Hi,
> >>> are you using OpenJDK or OracleJDK? There is a unfixed bug in Oracle
> JDK
> >> 6,
> >>> but I think that leads to a null pointer exception in the compiler.
> >>> Travis was able to build the current master with OpenJDK6 yesterday:
> >>> https://travis-ci.org/apache/incubator-flink/jobs/31142009
> >>>
> >>> Robert
> >>>
> >>>
> >>>
> >>> On Thu, Jul 31, 2014 at 9:13 AM, Aljoscha Krettek <[hidden email]
> >
> >>> wrote:
> >>>
> >>>> Hi Guys,
> >>>> I just noticed that "mvn verify" is failing on master:
> >>>>
> >>>> [ERROR] Failed to execute goal
> >>>> org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
> >>>> (default-testCompile) on project flink-runtime: Compilation failure
> >>>>
> >>>> [ERROR]
> >>>>
> >>>>
> >>
> /home/travis/build/aljoscha/incubator-flink/flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/OutboundConnectionQueueTest.java:[157,70]
> >>>> type parameters of <T>T cannot be determined; no unique maximal
> instance
> >>>> exists for type variable T with upper bounds boolean,java.lang.Object
> >>>>
> >>>> We had this problem before, does anyone remember what the problem is
> >> with
> >>>> java6 here? Also, I'm not filing a bug but posting this here since it
> >>>> should be handled quickly because a failing build looks bad.
> >>>>
> >>>> --
> >>>>
> >>>> aljoscha
> >>>>
> >>
> >>
>
>