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Posted to users@kafka.apache.org by Abhinav Anand <ab...@gmail.com> on 2014/01/22 22:55:18 UTC
Java major.minor version error
Hi,
I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to run
a consumer. It is throwing major.minor version error.
*java.lang.UnsupportedClassVersionError:
kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor version
51.0*
Is the Kafka repo built against jdk 1.7?
--
Abhinav Anand
Re: Java major.minor version error
Posted by Abhinav Anand <ab...@gmail.com>.
Hi Joe,
There was a wrong kafka release picked up from our local repo. Sorry for
bugging you with the no-issue.
On Thu, Jan 23, 2014 at 10:43 PM, Joe Stein <jo...@stealth.ly> wrote:
> Hi Abhinav,
>
> I just compiled and ran a consumer in java with maven and it worked fine.
>
> [root@localhost ~]# java -version
> java version "1.6.0_29"
> Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
> Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02, mixed mode)
>
> I did this using
> https://github.com/stealthly/dropwizard-kafka-http(changing the target
> & source in the pom to 1.6)
>
> are you using the Oracle JDK ?
>
> /*******************************************
> Joe Stein
> Founder, Principal Consultant
> Big Data Open Source Security LLC
> http://www.stealth.ly
> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> ********************************************/
>
>
> On Thu, Jan 23, 2014 at 2:21 AM, Abhinav Anand <ab...@gmail.com> wrote:
>
> > Hi Joe,
> > I am trying to setup a Kafka Simple Consumer in java. I am using the
> > kafka.consumer.Consumer.createJavaConsumerConnector to create a consumer
> > connector. The connector is used for get message streams. I am using
> > "kafka.javaapi.consumer.ConsumerConnector"
> >
> > *Code: *
> >
> > import kafka.consumer.*;
> > import kafka.javaapi.consumer.ConsumerConnector;
> > *ConsumerConnector consumerConnector =
> > Consumer.createJavaConsumerConnector(getConsumerConfig());*
> > Map<String,Integer> topicCountMap = new HashMap<String, Integer>();
> > topicCountMap.put(topic, 1);
> > Map<String, List<KafkaStream<byte[], byte[]>>> topicStreamMap =
> > consumerConnector.createMessageStreams(topicCountMap);
> >
> >
> >
> > *My maven dependency reads as *
> > <dependency>
> > <groupId>org.apache.kafka</groupId>
> > <artifactId>kafka_2.10</artifactId>
> > <version>0.8.0</version>
> > </dependency>
> > *JRE version: 1.6*
> >
> > *The error I am getting is *
> >
> > testHasNext(com.walmartlabs.mupd8.KafkaSourceTest) Time elapsed: 0.851
> sec
> > <<< ERROR!
> >
> > java.lang.UnsupportedClassVersionError:
> > kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
> version
> > 51.0
> >
> > at java.lang.ClassLoader.defineClass1(Native Method)
> >
> > at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
> >
> > at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
> >
> > at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
> >
> > at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
> >
> > at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
> >
> > at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
> >
> > at java.security.AccessController.doPrivileged(Native Method)
> >
> > at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> >
> > at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> >
> > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> >
> > at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> >
> > at kafka.consumer.Consumer.createJavaConsumerConnector(Unknown Source)
> >
> > at com.walmartlabs.mupd8.KafkaSource.getIterator(KafkaSource.java:111)
> >
> > at com.walmartlabs.mupd8.KafkaSource.initialize(KafkaSource.java:143)
> >
> >
> >
> >
> >
> > On Thu, Jan 23, 2014 at 12:05 PM, Joe Stein <jo...@stealth.ly>
> wrote:
> >
> > > It would be helpful if you can reproduce the issue.
> > >
> > > /*******************************************
> > > Joe Stein
> > > Founder, Principal Consultant
> > > Big Data Open Source Security LLC
> > > http://www.stealth.ly
> > > Twitter: @allthingshadoop
> > > ********************************************/
> > >
> > >
> > > On Jan 22, 2014, at 11:22 PM, Joe Stein <jo...@stealth.ly> wrote:
> > >
> > > > Can you share your reference?
> > > >
> > > >
> > > > /*******************************************
> > > > Joe Stein
> > > > Founder, Principal Consultant
> > > > Big Data Open Source Security LLC
> > > > http://www.stealth.ly
> > > > Twitter: @allthingshadoop
> > > > ********************************************/
> > > >
> > > >
> > > > On Jan 22, 2014, at 10:36 PM, Abhinav Anand <ab...@gmail.com>
> > wrote:
> > > >
> > > >> Hi Joe,
> > > >> I am using jre 1.6 and I don't see any reason for the error. But I
> am
> > > >> still getting the exception while running the consumer with jre 6.
> It
> > > runs
> > > >> fine with jre 7
> > > >>
> > > >> Regards,
> > > >> Abhinav
> > > >>
> > > >>
> > > >> On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly>
> > > wrote:
> > > >>
> > > >>> 0.8.0 final release was built with JDK 6 (which was RC5)
> > > >>>
> > > >>> /*******************************************
> > > >>> Joe Stein
> > > >>> Founder, Principal Consultant
> > > >>> Big Data Open Source Security LLC
> > > >>> http://www.stealth.ly
> > > >>> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> > > >>> ********************************************/
> > > >>>
> > > >>>
> > > >>> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab.rvian@gmail.com
> >
> > > wrote:
> > > >>>
> > > >>>> I am using jre 1.6.
> > > >>>>
> > > >>>> All the release candidates were built against 1.7. was the final
> > > release
> > > >>>> also built against 1.7 ?
> > > >>>>
> > > >>>>
> > > >>>> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <
> ab.rvian@gmail.com>
> > > >>> wrote:
> > > >>>>
> > > >>>>> Hi,
> > > >>>>> I have kafka_2.10 version 0.8.0 in my maven dependency. I am
> trying
> > > to
> > > >>>>> run a consumer. It is throwing major.minor version error.
> > > >>>>>
> > > >>>>> *java.lang.UnsupportedClassVersionError:
> > > >>>>> kafka/javaapi/consumer/ConsumerConnector : Unsupported
> major.minor
> > > >>>> version
> > > >>>>> 51.0*
> > > >>>>>
> > > >>>>> Is the Kafka repo built against jdk 1.7?
> > > >>>>>
> > > >>>>> --
> > > >>>>> Abhinav Anand
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> --
> > > >>>> Abhinav Anand
> > > >>>>
> > > >>>
> > > >>
> > > >>
> > > >>
> > > >> --
> > > >> Abhinav Anand
> > >
> >
> >
> >
> > --
> > Abhinav Anand
> >
>
--
Abhinav Anand
Re: Java major.minor version error
Posted by Joe Stein <jo...@stealth.ly>.
Hi Abhinav,
I just compiled and ran a consumer in java with maven and it worked fine.
[root@localhost ~]# java -version
java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02, mixed mode)
I did this using
https://github.com/stealthly/dropwizard-kafka-http(changing the target
& source in the pom to 1.6)
are you using the Oracle JDK ?
/*******************************************
Joe Stein
Founder, Principal Consultant
Big Data Open Source Security LLC
http://www.stealth.ly
Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
********************************************/
On Thu, Jan 23, 2014 at 2:21 AM, Abhinav Anand <ab...@gmail.com> wrote:
> Hi Joe,
> I am trying to setup a Kafka Simple Consumer in java. I am using the
> kafka.consumer.Consumer.createJavaConsumerConnector to create a consumer
> connector. The connector is used for get message streams. I am using
> "kafka.javaapi.consumer.ConsumerConnector"
>
> *Code: *
>
> import kafka.consumer.*;
> import kafka.javaapi.consumer.ConsumerConnector;
> *ConsumerConnector consumerConnector =
> Consumer.createJavaConsumerConnector(getConsumerConfig());*
> Map<String,Integer> topicCountMap = new HashMap<String, Integer>();
> topicCountMap.put(topic, 1);
> Map<String, List<KafkaStream<byte[], byte[]>>> topicStreamMap =
> consumerConnector.createMessageStreams(topicCountMap);
>
>
>
> *My maven dependency reads as *
> <dependency>
> <groupId>org.apache.kafka</groupId>
> <artifactId>kafka_2.10</artifactId>
> <version>0.8.0</version>
> </dependency>
> *JRE version: 1.6*
>
> *The error I am getting is *
>
> testHasNext(com.walmartlabs.mupd8.KafkaSourceTest) Time elapsed: 0.851 sec
> <<< ERROR!
>
> java.lang.UnsupportedClassVersionError:
> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor version
> 51.0
>
> at java.lang.ClassLoader.defineClass1(Native Method)
>
> at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
>
> at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
>
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
>
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
>
> at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
>
> at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
>
> at java.security.AccessController.doPrivileged(Native Method)
>
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>
> at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>
> at kafka.consumer.Consumer.createJavaConsumerConnector(Unknown Source)
>
> at com.walmartlabs.mupd8.KafkaSource.getIterator(KafkaSource.java:111)
>
> at com.walmartlabs.mupd8.KafkaSource.initialize(KafkaSource.java:143)
>
>
>
>
>
> On Thu, Jan 23, 2014 at 12:05 PM, Joe Stein <jo...@stealth.ly> wrote:
>
> > It would be helpful if you can reproduce the issue.
> >
> > /*******************************************
> > Joe Stein
> > Founder, Principal Consultant
> > Big Data Open Source Security LLC
> > http://www.stealth.ly
> > Twitter: @allthingshadoop
> > ********************************************/
> >
> >
> > On Jan 22, 2014, at 11:22 PM, Joe Stein <jo...@stealth.ly> wrote:
> >
> > > Can you share your reference?
> > >
> > >
> > > /*******************************************
> > > Joe Stein
> > > Founder, Principal Consultant
> > > Big Data Open Source Security LLC
> > > http://www.stealth.ly
> > > Twitter: @allthingshadoop
> > > ********************************************/
> > >
> > >
> > > On Jan 22, 2014, at 10:36 PM, Abhinav Anand <ab...@gmail.com>
> wrote:
> > >
> > >> Hi Joe,
> > >> I am using jre 1.6 and I don't see any reason for the error. But I am
> > >> still getting the exception while running the consumer with jre 6. It
> > runs
> > >> fine with jre 7
> > >>
> > >> Regards,
> > >> Abhinav
> > >>
> > >>
> > >> On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly>
> > wrote:
> > >>
> > >>> 0.8.0 final release was built with JDK 6 (which was RC5)
> > >>>
> > >>> /*******************************************
> > >>> Joe Stein
> > >>> Founder, Principal Consultant
> > >>> Big Data Open Source Security LLC
> > >>> http://www.stealth.ly
> > >>> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> > >>> ********************************************/
> > >>>
> > >>>
> > >>> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com>
> > wrote:
> > >>>
> > >>>> I am using jre 1.6.
> > >>>>
> > >>>> All the release candidates were built against 1.7. was the final
> > release
> > >>>> also built against 1.7 ?
> > >>>>
> > >>>>
> > >>>> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com>
> > >>> wrote:
> > >>>>
> > >>>>> Hi,
> > >>>>> I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying
> > to
> > >>>>> run a consumer. It is throwing major.minor version error.
> > >>>>>
> > >>>>> *java.lang.UnsupportedClassVersionError:
> > >>>>> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
> > >>>> version
> > >>>>> 51.0*
> > >>>>>
> > >>>>> Is the Kafka repo built against jdk 1.7?
> > >>>>>
> > >>>>> --
> > >>>>> Abhinav Anand
> > >>>>>
> > >>>>
> > >>>>
> > >>>>
> > >>>> --
> > >>>> Abhinav Anand
> > >>>>
> > >>>
> > >>
> > >>
> > >>
> > >> --
> > >> Abhinav Anand
> >
>
>
>
> --
> Abhinav Anand
>
Re: Java major.minor version error
Posted by Abhinav Anand <ab...@gmail.com>.
Hi Joe,
I am trying to setup a Kafka Simple Consumer in java. I am using the
kafka.consumer.Consumer.createJavaConsumerConnector to create a consumer
connector. The connector is used for get message streams. I am using
"kafka.javaapi.consumer.ConsumerConnector"
*Code: *
import kafka.consumer.*;
import kafka.javaapi.consumer.ConsumerConnector;
*ConsumerConnector consumerConnector =
Consumer.createJavaConsumerConnector(getConsumerConfig());*
Map<String,Integer> topicCountMap = new HashMap<String, Integer>();
topicCountMap.put(topic, 1);
Map<String, List<KafkaStream<byte[], byte[]>>> topicStreamMap =
consumerConnector.createMessageStreams(topicCountMap);
*My maven dependency reads as *
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.10</artifactId>
<version>0.8.0</version>
</dependency>
*JRE version: 1.6*
*The error I am getting is *
testHasNext(com.walmartlabs.mupd8.KafkaSourceTest) Time elapsed: 0.851 sec
<<< ERROR!
java.lang.UnsupportedClassVersionError:
kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor version
51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at kafka.consumer.Consumer.createJavaConsumerConnector(Unknown Source)
at com.walmartlabs.mupd8.KafkaSource.getIterator(KafkaSource.java:111)
at com.walmartlabs.mupd8.KafkaSource.initialize(KafkaSource.java:143)
On Thu, Jan 23, 2014 at 12:05 PM, Joe Stein <jo...@stealth.ly> wrote:
> It would be helpful if you can reproduce the issue.
>
> /*******************************************
> Joe Stein
> Founder, Principal Consultant
> Big Data Open Source Security LLC
> http://www.stealth.ly
> Twitter: @allthingshadoop
> ********************************************/
>
>
> On Jan 22, 2014, at 11:22 PM, Joe Stein <jo...@stealth.ly> wrote:
>
> > Can you share your reference?
> >
> >
> > /*******************************************
> > Joe Stein
> > Founder, Principal Consultant
> > Big Data Open Source Security LLC
> > http://www.stealth.ly
> > Twitter: @allthingshadoop
> > ********************************************/
> >
> >
> > On Jan 22, 2014, at 10:36 PM, Abhinav Anand <ab...@gmail.com> wrote:
> >
> >> Hi Joe,
> >> I am using jre 1.6 and I don't see any reason for the error. But I am
> >> still getting the exception while running the consumer with jre 6. It
> runs
> >> fine with jre 7
> >>
> >> Regards,
> >> Abhinav
> >>
> >>
> >> On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly>
> wrote:
> >>
> >>> 0.8.0 final release was built with JDK 6 (which was RC5)
> >>>
> >>> /*******************************************
> >>> Joe Stein
> >>> Founder, Principal Consultant
> >>> Big Data Open Source Security LLC
> >>> http://www.stealth.ly
> >>> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> >>> ********************************************/
> >>>
> >>>
> >>> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com>
> wrote:
> >>>
> >>>> I am using jre 1.6.
> >>>>
> >>>> All the release candidates were built against 1.7. was the final
> release
> >>>> also built against 1.7 ?
> >>>>
> >>>>
> >>>> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com>
> >>> wrote:
> >>>>
> >>>>> Hi,
> >>>>> I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying
> to
> >>>>> run a consumer. It is throwing major.minor version error.
> >>>>>
> >>>>> *java.lang.UnsupportedClassVersionError:
> >>>>> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
> >>>> version
> >>>>> 51.0*
> >>>>>
> >>>>> Is the Kafka repo built against jdk 1.7?
> >>>>>
> >>>>> --
> >>>>> Abhinav Anand
> >>>>>
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>> Abhinav Anand
> >>>>
> >>>
> >>
> >>
> >>
> >> --
> >> Abhinav Anand
>
--
Abhinav Anand
Re: Java major.minor version error
Posted by Joe Stein <jo...@stealth.ly>.
It would be helpful if you can reproduce the issue.
/*******************************************
Joe Stein
Founder, Principal Consultant
Big Data Open Source Security LLC
http://www.stealth.ly
Twitter: @allthingshadoop
********************************************/
On Jan 22, 2014, at 11:22 PM, Joe Stein <jo...@stealth.ly> wrote:
> Can you share your reference?
>
>
> /*******************************************
> Joe Stein
> Founder, Principal Consultant
> Big Data Open Source Security LLC
> http://www.stealth.ly
> Twitter: @allthingshadoop
> ********************************************/
>
>
> On Jan 22, 2014, at 10:36 PM, Abhinav Anand <ab...@gmail.com> wrote:
>
>> Hi Joe,
>> I am using jre 1.6 and I don't see any reason for the error. But I am
>> still getting the exception while running the consumer with jre 6. It runs
>> fine with jre 7
>>
>> Regards,
>> Abhinav
>>
>>
>> On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly> wrote:
>>
>>> 0.8.0 final release was built with JDK 6 (which was RC5)
>>>
>>> /*******************************************
>>> Joe Stein
>>> Founder, Principal Consultant
>>> Big Data Open Source Security LLC
>>> http://www.stealth.ly
>>> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
>>> ********************************************/
>>>
>>>
>>> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com> wrote:
>>>
>>>> I am using jre 1.6.
>>>>
>>>> All the release candidates were built against 1.7. was the final release
>>>> also built against 1.7 ?
>>>>
>>>>
>>>> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com>
>>> wrote:
>>>>
>>>>> Hi,
>>>>> I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to
>>>>> run a consumer. It is throwing major.minor version error.
>>>>>
>>>>> *java.lang.UnsupportedClassVersionError:
>>>>> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
>>>> version
>>>>> 51.0*
>>>>>
>>>>> Is the Kafka repo built against jdk 1.7?
>>>>>
>>>>> --
>>>>> Abhinav Anand
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Abhinav Anand
>>>>
>>>
>>
>>
>>
>> --
>> Abhinav Anand
Re: Java major.minor version error
Posted by Joe Stein <jo...@stealth.ly>.
Can you share your reference?
/*******************************************
Joe Stein
Founder, Principal Consultant
Big Data Open Source Security LLC
http://www.stealth.ly
Twitter: @allthingshadoop
********************************************/
On Jan 22, 2014, at 10:36 PM, Abhinav Anand <ab...@gmail.com> wrote:
> Hi Joe,
> I am using jre 1.6 and I don't see any reason for the error. But I am
> still getting the exception while running the consumer with jre 6. It runs
> fine with jre 7
>
> Regards,
> Abhinav
>
>
> On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly> wrote:
>
>> 0.8.0 final release was built with JDK 6 (which was RC5)
>>
>> /*******************************************
>> Joe Stein
>> Founder, Principal Consultant
>> Big Data Open Source Security LLC
>> http://www.stealth.ly
>> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
>> ********************************************/
>>
>>
>> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com> wrote:
>>
>>> I am using jre 1.6.
>>>
>>> All the release candidates were built against 1.7. was the final release
>>> also built against 1.7 ?
>>>
>>>
>>> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com>
>> wrote:
>>>
>>>> Hi,
>>>> I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to
>>>> run a consumer. It is throwing major.minor version error.
>>>>
>>>> *java.lang.UnsupportedClassVersionError:
>>>> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
>>> version
>>>> 51.0*
>>>>
>>>> Is the Kafka repo built against jdk 1.7?
>>>>
>>>> --
>>>> Abhinav Anand
>>>>
>>>
>>>
>>>
>>> --
>>> Abhinav Anand
>>>
>>
>
>
>
> --
> Abhinav Anand
Re: Java major.minor version error
Posted by Abhinav Anand <ab...@gmail.com>.
Hi Joe,
I am using jre 1.6 and I don't see any reason for the error. But I am
still getting the exception while running the consumer with jre 6. It runs
fine with jre 7
Regards,
Abhinav
On Thu, Jan 23, 2014 at 3:57 AM, Joe Stein <jo...@stealth.ly> wrote:
> 0.8.0 final release was built with JDK 6 (which was RC5)
>
> /*******************************************
> Joe Stein
> Founder, Principal Consultant
> Big Data Open Source Security LLC
> http://www.stealth.ly
> Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
> ********************************************/
>
>
> On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com> wrote:
>
> > I am using jre 1.6.
> >
> > All the release candidates were built against 1.7. was the final release
> > also built against 1.7 ?
> >
> >
> > On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com>
> wrote:
> >
> > > Hi,
> > > I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to
> > > run a consumer. It is throwing major.minor version error.
> > >
> > > *java.lang.UnsupportedClassVersionError:
> > > kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
> > version
> > > 51.0*
> > >
> > > Is the Kafka repo built against jdk 1.7?
> > >
> > > --
> > > Abhinav Anand
> > >
> >
> >
> >
> > --
> > Abhinav Anand
> >
>
--
Abhinav Anand
Re: Java major.minor version error
Posted by Joe Stein <jo...@stealth.ly>.
0.8.0 final release was built with JDK 6 (which was RC5)
/*******************************************
Joe Stein
Founder, Principal Consultant
Big Data Open Source Security LLC
http://www.stealth.ly
Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop>
********************************************/
On Wed, Jan 22, 2014 at 5:16 PM, Abhinav Anand <ab...@gmail.com> wrote:
> I am using jre 1.6.
>
> All the release candidates were built against 1.7. was the final release
> also built against 1.7 ?
>
>
> On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com> wrote:
>
> > Hi,
> > I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to
> > run a consumer. It is throwing major.minor version error.
> >
> > *java.lang.UnsupportedClassVersionError:
> > kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor
> version
> > 51.0*
> >
> > Is the Kafka repo built against jdk 1.7?
> >
> > --
> > Abhinav Anand
> >
>
>
>
> --
> Abhinav Anand
>
Re: Java major.minor version error
Posted by Abhinav Anand <ab...@gmail.com>.
I am using jre 1.6.
All the release candidates were built against 1.7. was the final release
also built against 1.7 ?
On Thu, Jan 23, 2014 at 3:25 AM, Abhinav Anand <ab...@gmail.com> wrote:
> Hi,
> I have kafka_2.10 version 0.8.0 in my maven dependency. I am trying to
> run a consumer. It is throwing major.minor version error.
>
> *java.lang.UnsupportedClassVersionError:
> kafka/javaapi/consumer/ConsumerConnector : Unsupported major.minor version
> 51.0*
>
> Is the Kafka repo built against jdk 1.7?
>
> --
> Abhinav Anand
>
--
Abhinav Anand