访问项目JSP报错，怎么解决

java.lang.VerifyError: Inconsistent stackmap frames at branch target 143
Exception Details:
Location:
cn/jsprun/utils/Serializer.serialize(Ljava/io/ByteArrayOutputStream;Ljava/lang/Object;Ljava/lang/String;)V @143: astore_1
Reason:
Type 'java/lang/Object' (current frame, stack[0]) is not assignable to 'java/lang/String' (stack map, stack[0])
Current Frame:
bci: @124
flags: { }
locals: { 'java/io/ByteArrayOutputStream', 'java/lang/Object', 'java/lang/String', 'java/lang/Float' }
stack: { 'java/lang/Object' }
Stackmap Frame:
bci: @143
flags: { }
locals: { 'java/io/ByteArrayOutputStream', 'java/lang/Object', 'java/lang/String', 'java/lang/Float' }
stack: { 'java/lang/String' }
Bytecode:

Type 'java/lang/Object' (current frame, stack[0]) is not assignable to 'java/lang/String' (stack map, stack[0])
大对象里面有小对象，小对象是可序列化的对象吗