JCL Translation Tools for COBOL-to-Java Modernization

SoftwareMining's COBOL-to-Java and COBOL-to-C# Conversion Toolkit converts supported IBM mainframe Job Control Language (JCL) into readable Unix shell scripts or Microsoft Windows batch files. The generated scripts coordinate the execution of batch applications converted into Java or C#.

JCL Conversion Project Evidence

SoftwareMining's JCL conversion technology has supported enterprise batch modernization projects targeting both on-premises and cloud infrastructure.

ING Bank: The conversion of approximately 1.5 million lines of IBM COBOL included JCL-controlled batch processing. SoftwareMining converted supported JCL and batch utilities for operation with the Java application on Linux while ING maintained its required batch-processing windows. Read the ING Bank COBOL and JCL-to-Java case study .
Verisk: The modernization of Verisk's batch applications included conversion of COBOL and associated batch-processing requirements to Java for deployment on AWS. Read the Verisk COBOL batch modernization case study .

JCL controls program execution, dataset allocation, file processing, utility operations and job sequencing within IBM mainframe batch environments. SoftwareMining converts supported JCL statements and utilities into corresponding scripts and runtime operations for deployment outside the mainframe.

Key Considerations for JCL Translation

Script generation: Converts supported JCL statements into Unix shell scripts or Microsoft Windows batch files.
Mainframe operation support: Handles program execution (EXEC PGM), file processing (SORT and COPY), data export (IDCAMS) and GDG versioning.
Job flow preservation: Retains supported job steps, execution order, return-code handling and conditional processing.

SoftwareMining JCL Translation Coverage

EXEC PGM
Runs translated Java and C# programs from the command line.
EXEC PROC
Converts cataloged procedures into separate shell scripts, which run in a standard way.
Sort / DFSort (implemented in Java and .NET)
SoftwareMining's Sort / DFSORT utility delivers about 90 percent of the functions provided by DFSORT or SyncSort. For the full feature list, see SoftwareMining Sort Documentation.
Note: IF/THEN and JOIN-KEYS functionality are distributed under a separate license.
Copy (implemented in Java and .NET)
The COPY utility uses SoftwareMining's Sort / DFSORT implementation.
IDCAMS / REPO
Used to export data from SQL (replacement for VSAM KSDS). For details see SoftwareMining ExportDb Documentation.
IEBGENER (implemented in Java and .NET)
Used for copying and printing sequential files.
IEFBR14 (implemented in Java and .NET)
Used for renaming and deleting sequential files.
IKJEFT01
Typical uses include:
- Launching translated programs
- Copying, renaming, or deleting VSAM data files (mapped to operating system utilities)
- Calling mainframe routines such as DSNTEP2 or DSNTEP4 to run SQL statements on the database. These become calls into SoftwareMining's SQLLoader.
DFSRRC00 (Java and .NET implementations)
Launches IMS programs in either TM (online) or DLI (batch) mode. Binds the specified PSB and passes user parameters to the module.
GDG (implemented in Java and .NET)
GDG versioning for flat files. For details see SoftwareMining GDG Documentation.
ICETOOL (implemented in Java and .NET) (distributed under a separate license)
Common ICETOOL features such as COPY, SELECT, and SPLICE are supported. Additional functions are available on request.

JCL Translation Tools for COBOL-to-Java Modernization

Key Considerations for JCL Translation

SoftwareMining JCL Translation Coverage

Mainframe COBOL Migration Related Papers