- Migration Pattern
- Java framework change
migration-pattern
Migration Pattern
Potential Problems of Java Framework Change
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①Change Java program’s architecture
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Migration Cases
Manufacturing management system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 1.5 → Open JDK 17
Apcoordinator + Fujitsu EZD V2.1 → Customized SpringBoot 2.7.5 + EJB 3
Oracle Database 11g → EnterpriseDB Advanced Server 15
Windows 7, Windows10 → Windows10, Windows11, iOS 16.2
IE11(IE5 mode) → Edge111, Safari16
Shift_JIS → UTF-8(DB character code) - Current system scale
- Java: 3,322.7KL, JSP: 60.1KL
- Development period
- 19 months
Three Java systems of auto company
- Development process
- Inventory, migration design, source migration − system test, user acceptance test support, go-live
- System reform information
- Java1.3 → Java6
SQC → Pro*C
WACs (JavaEE) → NSF (Struts1)
DB2 7.2 → Oracle Database 11
Windows XP/7 → no change
IE7 → no change - Current system scale
- Java/JSP: 2,397KL, SQC: 484.7KL
- Development period
- 10 months
Mission-critical system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support, go-live support
- System reform information
- Java 6 → Oracle Java 17
JSP → Thymeleaf
Java6 + Struts1.2.9 + Seasar2 + S2Dao + Ajax + jQuery → Thymeleaf 3.0.15 + SpringBoot 2.6.6 + Mybatis 3.5.9 + Ajax + jQuery3.6
Oracle Database 10g/11g → Oracle Database 19c
Windows 10 → no change, IE11(IE5 compatible mode) → Chrome (the latest version)
PrintStream FormEditor → SVFX-Designer 10.1, SVF for PDF 10.1 (screen) - Current system scale
- Java: 834.6KL, JSP: 320.0KL, JavaScript: 975.2KL
- Development period
- 16 months
Three Java systems of an airline
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java1.2/1.3/1.4 → Java6
WACs4.0 → Struts2.2 + Spring3.0
DB2 8.1 → DB2 9.7
Windows XP → Windows XP/Vista/7 - Current system scale
- Java/JSP: 1,535KL, SQC: 86.8KL
- Development period
- 10 months
Financial system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Oracle JDK 1.5 → RedHat Open JDK 17
Apcoordinator + ymrfw (customized framework) → customized SpringBoot 2.7.5 + EJB 3
Oracle Database 11.2 → Oracle Database 19C
Windows7, Windows10 → Windows10, Windows11
Edge(IE5 modie) → Edge119 - Current system scale
- Java: 1,393.14KL, JSP: 185.66KL, JavaScript: 3.7KL
- Development period
- 16 months
Java system of insurance company
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 5 → Java 8
WACsV4.3.4、Struts1.1 → SpringMVC 4.3.10
DB2 V8 → DB2 V8 for Linux
Windows7/8/10 → no change
IE11 → no change - Current system scale
- Java/JSP: 998.1KL
- Development period
- 27 months
Recruitment WEB system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java1.8 → Java11（AmazonCorretto11）
Seasar2, Struts2 → SpringBoot2.3.2 + Mybatis3.5.1
Oracle Database 12.1.0.2.0, Postgres9.2.10 → no change
Windows10 + Chrome v74 → no change - Current system scale
- Java: 415.3KL, JSP/JavaScript: 296.7KL
- Development period
- 10 months
Sales system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 8 → Java 13 (Oracle JDK)
Struts1.1 + Hibernate → Spring MVC 5.2 + Hibernate 5.4
Oracle Database 11.2 → PostgreSQL 11.7
Windows10 → no change
IE11 → Edge 88, Chrome 8 - Current system scale
- Java: 461.4KL, JSP: 65.0KL
- Development period
- 7 months
Manufacturing system
- Development process
- Inventory, migration design, source migration − migration test, system test support
- System reform information
- Java 1.8 → Red Hat OpenJDK 17
SQLJ 3.72.44 → SQL + Java(Red Hat OpenJDK 17)
WACs 8.4.1 → SpringMVC 5.3.31 + MyBatis 3.5.11
DB2 v11.1.3.3 → Amazon RDS for PostgreSQL
Windows10 → Windows10, Windows11
Edge (IE5) → Edge (the latest version)
IBM-943 → UTF-8 - Current system scale
- Java: 388.7KL, JSP: 29.3KL, Shell: 26.7KL, SQLJ: 134.8KL
- Development period
- 14 months
Store equipment management system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 1.6 → OpenJDK 17
Struts2 + Spring Framework + iBatis → SpringBoot 2.7.4 + MyBatis3.5.9
Oracle Database 11g → Oracle Database 19C
Windows 7 /Windows 10 → Windows7/Windows10/Windows11
IE11(IE7 mode) → Edge118、Chrome118 - Current system scale
- Java: 381.6KL, JSP: 119.2KL
- Development period
- 9 months
Data conversion system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 1.7 → Amazon Corretto 17
TERASOLUNA Server Framework for Java 2 → TERASOLUNA Server Framework for Java 5.7
TERASOLUNA Batch Framework for Java 3.2.0 → TERASOLUNA Batch Framework for Java 5.7
DB2 7.2 → Amazon Aurora PostgreSQL
Windows7, Windows10, Windows11 → Windows10, Windows11
IE11 → Edge (the latest version), Chrome (the latest version)
Character code: Shift_JIS → UTF-8 - Current system scale
- JSP: 42.8KL, Java (screen): 253.1KL, Java (batch): 193.2KL
- Development period
- 11 months
Web system
- Development process
- Inventory, migration design, source migration − migration test
- System reform information
- Java 1.7.0_45 → AdoptOpenJDK11(LTS)
Spring Framework 3.2.9 + JDBC → Spring Framework 5.2.4 + JDBC
WACs 8 → Spring Framework 5.2.4
DB2 10.5 → MySQL 8.0.18
Windows10 → no change
IE11, Edge → no change - Current system scale
- Java: 356.2KL, JSP: 26.6KL
- Development period
- 9 months
Transaction system
- Development process
- Inventory, migration design, source migration − system test, user acceptance test support
- System reform information
- Java 1.6.0_19 → Amazon Corretto 21.0.2.13.1
Seasar2 → Spring FrameWork 6.1.2 + MyBatis 3.5.15
Oracle Database 12c EE → Amazon RDS for PostgreSQL 16
Windows10 → Windows10, Windows11 (verify operation)
Edge (IE mode) → Edge121.0.2277.112 - Current system scale
- Java: 220.5KL, JSP: 29.3KL, JavaScript: 34.4KL, CSS: 16.8KL
- Development period
- 13 months
Management system
- Development process
- Inventory, migration design, source migration − migration test, system test support, user acceptance test support
- System reform information
- Java 7 → AdoptOpenJDK 8
Teeda + Seasar2 + S2Dao → Thymeleaf3.0.11 + Spring Boot2.3.1 + MyBatis 3.5.3
MySQL 5.7 → SQLServer 2019
Windows 8.1 → Windows 10
IE11, Chrome, Firefox, Safari, Edge → no change - Current system scale
- Java: 113.3KL, HTML: 48.2KL, JavaScript: 17.6KL, SQL: 13.2KL
- Development period
- 7 months