4.2.6 Backported issues

[fmbenhassine]

• Fix javadoc on ItemReadListener interface Fix javadoc on ItemReadListener interface #3815
• Fix javadoc in ExitStatus Fix javadoc in ExitStatus #3811
• Provide constructors for injection Provide constructors for injection #3819
• Jackson2ExecutionContextStringSerializer should trust result of Arrays.asList() by default Jackson2ExecutionContextStringSerializer should trust result of Arrays.asList() by default. #3830
• Add java.sql.Timestamp to trusted classes in Jackson2ExecutionContextStringSerializer Add java.sql.Timestamp to trusted classes in Jackson2ExecutionContextStringSerializer #3855
• Incorrect value of kind attribute in spring-batch-3.0.xsd Incorrect value of kind attribute in spring-batch-3.0.xsd #1479
• KafkaItemWriter should wait for results of kafkaTemplate.sendDefault call KafkaItemWriter should wait for results of kafkaTemplate.sendDefault call #3773
• Incorrect usage of StringBuilder in TransactionAwareBufferedWriter Incorrect usage of StringBuilder in TransactionAwareBufferedWriter #3745
• chunk-oriented-processing and completion-policy inconsistent with documentation chunk-oriented-processing and completion-policy inconsistent with documentation #1629
• Added isXXXEnabled for logging statements Added isXXXEnabled for logging statements #3814
• Better sizes for StringBuilder Better sizes for StringBuilder #3813
• Reduce the toCharArray overhead Reduce the toCharArray overhead #3812

[fmbenhassine]

Closing this as v4.2.6 is now released: https://github.com/spring-projects/spring-batch/releases/tag/4.2.6.RELEASE.