Notes

Execution Sequence
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WithoutMultiThreading > main
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Make methods static !
Use of backupExcelBeforeRun, backupExcelAfterRun ?
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ExcelOperation > readExecutionVariables
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Remove classlevel variables, refactor loading of config !
Research extent report improvement *
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WithoutMultiThreading > backupExcelBeforeRun
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Use of zip ?
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FileArchive > zipSingleFile
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Improve on execution time for zip !
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DriverScript > driverTest
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Remove method ? !
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ExcelOperation > readTestSuite
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Check possibility of improvement of reading file *
Check improvement on fillo query *
Research fillo improvement *
Refactor ? !
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ExcelOperation > executeFlowMethods
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Refactor ? !
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DriverScript > execute_Actions
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Refactor to flowMethods.getClass().getMethod(flowID, FlowMethods.class, String.class).invoke(flowMethods, testSuiteModuleName); !
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WithoutMultiThreading > exitMethod
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Nothing
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MISC
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Research global try catch for report generation - try catch at main method level or https://stackoverflow.com/questions/1548487/java-global-exception-handler *
Setup sonarqube *
CI *
Use PMD for code analysis - download jar, follow instructions on https://pmd.github.io/ to start off, use pmd command > filetobemade.extension to put output to file !**
Precommit hooks *
Use the source and refactor options under eclipse to improve code *
Achieve max cohesion and min coupling and make methods static on page classes as much as possible *
Use local variable more than class variables *
Explore object pool - https://www.javaworld.com/article/2076690/java-concurrency/build-your-own-objectpool-in-java-to-boost-app-speed.html ? *
Maximise String pool usage ! ? *
Look for looping structures across application and improve them *
For long existing variables, use runtime calculations to calculate their values if possible than storing them in memory for long duration *
Use compressedoops > -XX:+UseCompressedOops > https://wiki.openjdk.java.net/display/HotSpot/CompressedOops > http://www.oracle.com/technetwork/articles/java/vmoptions-jsp-140102.html > https://www.javacodegeeks.com/2016/05/compressedoops-introduction-compressed-references-java.html > https://www.cubrid.org/blog/the-principles-of-java-application-performance-tuning > https://docs.oracle.com/cd/E13150_01/jrockit_jvm/jrockit/geninfo/diagnos/tune_footprint.html
Prefer primitive types to their Object wrappers. The main cause of wrapper types usage are JDK collections, so consider using one of primitive type collection frameworks like Trove. - https://bitbucket.org/trove4j/trove ** http://java-performance.info/primitive-types-collections-trove-library/
Use primitives over Wrapper objects *
Avoid autoboxing if possible ? * https://docs.oracle.com/javase/1.5.0/docs/guide/language/autoboxing.html
Upgrade Java version *
https://docs.oracle.com/javase/7/docs/technotes/guides/management/jconsole.html *
Use early return from methods **
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LINKS
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https://en.wikipedia.org/wiki/List_of_tools_for_static_code_analysis#Java (To research)
https://www.journaldev.com/4098/java-heap-space-vs-stack-memory (For Reference)
https://blog.jooq.org/2015/02/05/top-10-easy-performance-optimisations-in-java/ (For use) **