What do you get if you type “javac -version”? If you have the java compiler (javac) then you have (at least part of) the JDK and not just the JRE.
Peter From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Pommier, Rex Sent: Tuesday, December 10, 2024 1:45 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: converting Cobol to java - remaining on the mainframe We have a ZIIP (small shop, only 2 subcapacity general purpose engines on the machine besides the ZIIP. I don't know offhand if I have the JDK or just the JRE. Is there an easy way to find out? Is the JDK an additional cost? If I run java17 I get this. Prod1:RRP:/usr/lpp/java/J17.0_64/bin: # ./java -version java version "17.0.9" 2023-10-17 IBM Semeru Runtime Certified Edition for z/OS 17.0.9.0 (build 17.0.9+9) IBM J9 VM 17.0.9.0 (build z/OS-Release-17.0.9.0-b01, JRE 17 z/OS s390x-64-Bit Compressed References 20231113_49 (JIT enabled, AOT enabled) OpenJ9 - 4e0d44ea9b1 OMR - 9fc2a7f28b9 IBM - 970f576 JCL - 30d13b11a3f based on jdk-17.0.9+9) Prod1:RRP:/usr/lpp/java/J17.0_64/bin: # ./java -fullversion java full version "17.0.9+9" Prod1:RRP:/usr/lpp/java/J17.0_64/bin: # Rex -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Jerry Whitteridge Sent: Tuesday, December 10, 2024 11:41 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: [EXTERNAL] Re: converting Cobol to java - remaining on the mainframe The first question to ask is do you have any zIIP processors ? This makes a big difference if you are planning to run java of any flavor. It will depend on whether you have the JDK or JRE versions of java on how easy it is to do development natively on the mainframe Jerry Whitteridge Sr Manager Managed Services jerry.whitteri...@albertsons.com 480 578 7889 -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Pommier, Rex Sent: Tuesday, December 10, 2024 10:34 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL Email: converting Cobol to java - remaining on the mainframe Hi list, We have a Cobol/VSAM/CICS+batch application that the developers want to convert the Cobol/VSAM part to Java/Db2, still residing on the mainframe. I have java 8 (both 31 bit and 64 bit) as well as java 11 and 17 on the mainframe - the parts that are "no additional cost" with z/OS 3.1. Is this all I need to develop java applications on the MF or are there additional java compilers or other pieces that I would need to purchase to make this a viable option? At this point the only java we use is what IBM ships ( like SCRT). TIA Rex -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
