🐞 Bug fixes

• Consider making JobParameters#getParameters() immutable #3980
• JdbcPagingItemReader with sort key crashes in multithreaded step for empty query #3898
• BatchTestContextCustomizer does not implement hashCode/equals, preventing context caching #3940
• "IllegalArgumentException: Only 1 out of 2 arguments could be assigned" using MethodInvokingTaskletAdapter + NamedParameterJdbcTemplate #3794
• Remove whitespace to support multiple execution statement #3861
• SimpleJobExplorer#getLastJobExecution does not fetch step executions #3943
• NPE in JDBC ItemReaders after changes in spring-jdbc's AbstractFallbackSQLExceptionTranslator #3968

📔 Documentation

• Fix double "the" typo everywhere in source code #3977
• Fix typos in the document for configuring steps #3965
• Incorrect content in spring-batch-docs jar #3922
• Duplicate entries in the documentation distribution file #3917