Recently when integrating Tomcat with Redis to store sessions, I ran into an error upon starting Tomcat:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisTemplate' defined in class path resource [spring.xml]: Initialization of bean failed; nested exception is java.lang.VerifyError: Bad type on operand stack
Exception Details:
Location:
org/springframework/data/redis/connection/jedis/JedisConnectionFactory.afterPropertiesSet()V @109: invokespecial
Reason:
Type 'redis/clients/jedis/JedisPoolConfig' (current frame, stack[3]) is not assignable to 'org/apache/commons/pool2/impl/GenericObjectPoolConfig'
Current Frame:
bci: @109
flags: { }
locals: { 'org/springframework/data/redis/connection/jedis/JedisConnectionFactory' }
stack: { 'org/springframework/data/redis/connection/jedis/JedisConnectionFactory', uninitialized 73, uninitialized 73, 'redis/clients/jedis/JedisPoolConfig', 'java/lang/String', integer, integer, 'java/lang/String' }
Bytecode:
0000000: 2ab4 000d c700 3d2a bb00 1759 2ab4 0003
0000010: 2ab4 0004 b700 18b5 000d 2ab4 0019 b800
0000020: 1a99 000e 2ab4 000d 2ab4 0019 b600 1b2a
0000030: b400 059e 000e 2ab4 000d 2ab4 0005 b600
0000040: 1c2a b400 0699 002e 2abb 001d 592a b400
0000050: 0a2a b400 0db6 001e 2ab4 000d b600 1f2a
0000060: b400 0db6 0020 2ab4 000d b600 21b7 0022
0000070: b500 07b1
Stackmap Table:
same_frame(@47)
same_frame(@65)…
Cause: Incompatible Jedis version mismatch.
Solution: Replace the Jedis version in the tomcat/lib directory to match the Jedis version used in your project directory.
Attachment, common version downloads: http://mirror.cnop.net/jedis/