ok, I'll check later. I remember this issue is caused by java7 compiled class files.
On Tue, Apr 10, 2018 at 11:34 AM, Makoto Yui <m...@apache.org> wrote: > Takeshi, > > I found that the following *warnings* are occurring in CI. > > Could you look into it though It's just a warning? > > https://travis-ci.org/apache/incubator-hivemall/jobs/363986771 > > [WARN] Unable to instrument file > /home/travis/build/apache/incubator-hivemall/spark/ > spark-2.3/target/generated-classes/cobertura/org/apache/ > spark/sql/catalyst/expressions/TopKHelper$ScoreWriter.class > java.lang.UnsupportedClassVersionError: > org/apache/spark/sql/catalyst/expressions/codegen/UnsafeRowWriter : > Unsupported major.minor version 52.0 > at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.7.0_151] > at java.lang.ClassLoader.defineClass(ClassLoader.java:803) ~[na:1.7.0_151] > at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) > ~[na:1.7.0_151] > at java.net.URLClassLoader.defineClass(URLClassLoader.java:442) > ~[na:1.7.0_151] > at java.net.URLClassLoader.access$100(URLClassLoader.java:64) > ~[na:1.7.0_151] > at java.net.URLClassLoader$1.run(URLClassLoader.java:354) ~[na:1.7.0_151] > at java.net.URLClassLoader$1.run(URLClassLoader.java:348) ~[na:1.7.0_151] > at java.security.AccessController.doPrivileged(Native Method) > ~[na:1.7.0_151] > at java.net.URLClassLoader.findClass(URLClassLoader.java:347) > ~[na:1.7.0_151] > at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[na:1.7.0_151] > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:312) > ~[na:1.7.0_151] > at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[na:1.7.0_151] > at java.lang.Class.forName0(Native Method) ~[na:1.7.0_151] > at java.lang.Class.forName(Class.java:278) ~[na:1.7.0_151] > at org.objectweb.asm.ClassWriter.getCommonSuperClass(Unknown Source) > ~[asm-5.0.1.jar:5.0.1] > at > > > -- > Makoto YUI <myui AT apache.org> > Research Engineer, Treasure Data, Inc. > http://myui.github.io/ > -- --- Takeshi Yamamuro
