{{theTime}}

Search This Blog

Total Pageviews

Exception in thread "main" java.lang.UnsupportedClassVersionError:

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/util/SSL : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)


This exception thrown when Java run time env version mismatches.
SSL.java compiled in Java8.  When Java7 JRE executs SSL.class this error will be thrown.
Make sure the compiled classes are executed in same Java Version.

Kafka Consumer Parallelism

Kafka Parallel Consumer Options: Key-level parallelism:  Multiple threads process the messages from a single partition in parallel while ma...