IBM Z Software


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IBM Java SDK for z/OS

Showing 16

shared classes to support .jrt and nested jars

I am using zowe - and it takes a long time to start. (as well as z/osmf) I can see from the shared classes output and the output of -verbose:classes that most files are not found in the shared classes cache. These classes come from nested jars... ...
8 months ago in IBM Java SDK for z/OS 3 Not under consideration

ZFile API - include switching user security profile in a thread with a userID provided in the API call

MVS dataset could be configured with a access profile. For a user connection to our server, the functionality to access on dataset and USS file is performed with the connection's user security using pthread_security_np(applid) (dedicated thread or...
6 months ago in IBM Java SDK for z/OS 2 Not under consideration

zFile API write-lock on VSAM at record level for high concurrent VSAM write access to different records

Our product (zExplorer server on z/OS) is using VSAM for book-keeping our metadata of dataset ENQ. The VSAM needs to support high level of concurrent of write (and read) access from different users, servers from different sysplex VMs, to different...
6 months ago in IBM Java SDK for z/OS 1 Not under consideration

Enhance IBM JZOS API to throw an exception when a Java application tries to read a corrupted VSAM dataset

As part of an application conversion from Assembler to Java, we've found an issue related to error handling where the JZOS API does not handle well. In our case it is related to accessing a corrupt VSAM file, and we've seen the same outcome when r...
9 months ago in IBM Java SDK for z/OS 2 Not under consideration

ZFile open-mode API

The ZFile "options" parameter to the constructor/reopen() method is based on the C-style fopen() API, but does not have an entirely clear correspondance to COBOL file open options (INPUT, OUTPUT, I-O, EXTEND); it would be useful to COBOL-using cli...
6 months ago in IBM Java SDK for z/OS 2 Not under consideration

JZOS Fields API for COBOL-compatible string output

JZOS Fields can convert between Java objects and their in-memory COBOL binary representation, but cannot convert to their textual representation as defined by DISPLAY / ACCEPT. For (most) USAGE DISPLAY field types these representations are equival...
6 months ago in IBM Java SDK for z/OS 1 Not under consideration

JZOS Field for non-EBCDIC encodings

JZOS StringField only supports single-byte EBCDIC encodings; COBOL also allows multi/variable-byte length DBCS encodings (most notably, Shift-JIS for the Japanese market) and two unicode encodings, "National" UTF-16 and UTF-8. While all Java SDKs ...
6 months ago in IBM Java SDK for z/OS 1 Not under consideration

Permissive mode for JZOS Fields

JZOS fields throw exceptions on their input values holding invalid data (e.g. Packed Decimal fields with > 0x9 digit nibbles or invalid sign codes); COBOL programs, on the other hand, don't always store valid values in their fields. Could we ad...
6 months ago in IBM Java SDK for z/OS 1 Not under consideration

Sharing one Java Shared Classcache between different users and its restrictions

We plan to use the Java Shared Classcache for our Java Batch Jobs to improve CPU usage and performance of our batch jobs. The batch jobs use for security reasons different users but should share one classcache. Sharing the same Shared Class Cache ...
over 1 year ago in IBM Java SDK for z/OS 2 Not under consideration

JCE Provider support for IBM Cloud Hyper Protect Crypto Services PKCS#11

IBM Cloud Hyper Protect Crypto Services (HPCS) is a premium Key Management System with a Cloud HSM that is FIPS 140-2 Level 4 certified. HPCS is used as a backend HSM for several ISV products like Hashicorp Vault, Fujitsu Enterprise PostgreSQL, F5...
almost 3 years ago in IBM Java SDK for z/OS 2 Not under consideration

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