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Using Z Abend Investigator
Performing Java analysis
Java application samples
The JCL samples provided in the HFZ.SHFZSAM1 sample data set demonstrate how to use Java™ and interlanguage calls with Z Abend Investigator.

Using Z Abend Investigator
- Introduction
- Real-time analysis
- The Z Abend Investigator ISPF interface
- Performing batch reanalysis
- Performing interactive reanalysis
- Performing CICS system abend dump analysis
- Formatting a CICS auxiliary trace data set
- Performing Java analysis
  - Selecting a Java dump data set
    Specification of a Java™ dump data set to be analyzed is done by first selecting File > Analyze MVS Dump Data Set from the Fault Entry List display.
  - Java fault entry reanalysis
  - Displaying the Java information in the interactive report
  - Java event replacement in Z Abend Investigator event list
    When an abend includes Java™ events, Z Abend Investigator requests a system dump of the JVM. This Java system dump is analyzed by Z Abend Investigator using Diagnostic Tool Framework for Java (DTFJ) APIs.
  - Java information reporting limitations
  - Java application samples
    The JCL samples provided in the HFZ.SHFZSAM1 sample data set demonstrate how to use Java™ and interlanguage calls with Z Abend Investigator.
    - Sample 1 (HFZSJAV1): Enterprise PL/I invoking Java in batch
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV1) demonstrates how to use Z Abend Investigator when Enterprise PL/I invokes Java™ in batch. It includes Java calling an Enterprise PL/I DLL that is located in a PDSE data set member.
    - Sample 2 (HFZSJAV2): Enterprise COBOL invoking Java in batch
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV2) demonstrates how to use Z Abend Investigator when Enterprise COBOL invokes Java in batch. It includes Java calling an Enterprise COBOL DLL that is located in a PDSE data set member.
    - Sample 3 (HFZSJAV3): 64-bit Enterprise PL/I invoking Java in batch
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV3) demonstrates how to use Z Abend Investigator when 64-bit Enterprise PL/I invokes 64-bit Java™ in batch. It includes Java calling an Enterprise PL/I DLL that is located in a PDSE data set member.
    - Sample 4 (HFZSJAV4): IMS Java batch processing sample
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV4) demonstrates how to use Z Abend Investigator with IMS™ Java™ batch processing (JBP) regions. In the sample, IMS calls a Java program, which in turn calls COBOL and assembler programs.
    - Sample 5 (HFZSJAV5): C++ program invoking Java in batch
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV5) demonstrates how to use Z Abend Investigator when using a 31-bit or 64-bit C++ program to invoke Java™ in batch. It includes Java calling a C++ DLL located in a PDSE data set member.
    - Sample 6 (HFZSJAV6): Call a Java batch application with the Z Abend Investigator wrapper utility
      The JCL in sample HFZ.SHFZSAM1(HFZSJAV6) demonstrates how to use the Z Abend Investigator Java™ wrapper utility to invoke a Java class with a main() method within a try-catch block. Unhandled exceptions are automatically caught and fault entries are created using the Snap.dump() method.
- The Z Abend Investigator report

Java application samples

The JCL samples provided in the HFZ.SHFZSAM1 sample data set demonstrate how to use Java™ and interlanguage calls with Z Abend Investigator.

To run the samples, you must:

Tailor the JCL job card to meet your site-specific requirements.
Specify where Z Abend Investigator, Java™, and the required compilers are installed.
Run the samples with a region size of 300 MB or larger.
Ensure that the user ID that runs the samples has an OMVS segment, because the samples create hierarchical file structure (HFS) files.

The samples create several temporary files that you must manually delete.