[KAFKA-893] Unable to access kafka via Tomcat

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: tools
• Environment: Apache Tomcat 7
• Assignee: Unassigned
• Reporter: arathi m
• Created: 01/May/13 19:18
• Updated: 21/May/14 16:34
• Resolved: 21/May/14 16:34

Description

Iam using kafka_2.8.0-0.8-SNAPSHOT.jar and Apache Tomcat 7. Upon deploying, the Consumer example (provided at Kafka quickstart) in a Tomcat web app, I get the following error

java.lang.VerifyError: class scala.Tuple2$mcLL$sp overrides final method _1.()Ljava/lang/Object;
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:791)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2888)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1172)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
kafka.consumer.ConsumerConfig.<init>(ConsumerConfig.scala:75)
TestServlet.kafkaconsumer(TestServlet.java:44)
TestServlet.doGet(TestServlet.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

Please suggest what should be done to fix this error.

Thanks in advance.
Arathi