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To allow other user profiles to access JSM files and folders you can use the i5/OS user profile primary group or supplemental group feature:
CHGUSRPRF USRPRF(MYUSER) GRPPRF(XXXXXXXXXX) OWNER(*USRPRF|*GRPPRF) SUPGRPPRF(xxxPGMLIB)
IBM i Java uses the Unix Style permissions when creating files and folders.
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Specifying the properties without any values or with unsupported values results in a public data authority of *NONE.
os400.dir.create.auth=none
os400.file.create.auth=none
To change the *PUBLIC data authority for created files and folders to a particular value requires changing the following properties in the SystemDefault properties file.
os400.dir.create.auth=RWX
os400.file.create.auth=RW