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From Michael Armbrust <mich...@databricks.com>
Subject Re: Why the major.minor version of the new hive-exec is 51.0?
Date Wed, 31 Dec 2014 20:16:48 GMT
This was not intended, can you open a JIRA?

On Tue, Dec 30, 2014 at 8:40 PM, Ted Yu <yuzhihong@gmail.com> wrote:

> I extracted org/apache/hadoop/hive/common/CompressionUtils.class from the
> jar and used hexdump to view the class file.
> Bytes 6 and 7 are 00 and 33, respectively.
>
> According to http://en.wikipedia.org/wiki/Java_class_file, the jar was
> produced using Java 7.
>
> FYI
>
> On Tue, Dec 30, 2014 at 8:09 PM, Shixiong Zhu <zsxwing@gmail.com> wrote:
>
> > The major.minor version of the new org.spark-project.hive.hive-exec is
> > 51.0, so it will require people use JDK7. Is it intentional?
> >
> > <dependency>
> > <groupId>org.spark-project.hive</groupId>
> > <artifactId>hive-exec</artifactId>
> > <version>0.12.0-protobuf-2.5</version>
> > </dependency>
> >
> > You can use the following steps to reproduce it (Need to use JDK6):
> >
> > 1. Create a Test.java file with the following content:
> >
> > public class Test {
> >
> >     public static void main(String[] args) throws Exception{
> >        Class.forName("org.apache.hadoop.hive.conf.HiveConf");
> >     }
> >
> > }
> >
> > 2. javac Test.java
> > 3. java -classpath
> >
> >
> ~/.m2/repository/org/spark-project/hive/hive-exec/0.12.0-protobuf-2.5/hive-exec-0.12.0-protobuf-2.5.jar:.
> > Test
> >
> > Exception in thread "main" java.lang.UnsupportedClassVersionError:
> > org/apache/hadoop/hive/conf/HiveConf : Unsupported major.minor version
> 51.0
> > at java.lang.ClassLoader.defineClass1(Native Method)
> > at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
> > at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
> > 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 java.lang.Class.forName0(Native Method)
> > at java.lang.Class.forName(Class.java:169)
> > at Test.main(Test.java:5)
> >
> >
> > Best Regards,
> > Shixiong Zhu
> >
>

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