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The SYS.JAVA$POLICY$ table in Oracle E-Business Suite (EBS) 12.1.1 or 12.2.2 is a critical system-owned object that stores Java security policy permissions. These permissions govern the execution privileges of Java code within the Oracle database, particularly for Java Stored Procedures, Java-based extensions, and other Java components integrated with EBS. The table is part of Oracle's Java Virtual Machine (JVM) security framework and plays a key role in enforcing fine-grained access control for Java operations in the database.

Purpose and Functionality

The SYS.JAVA$POLICY$ table maintains policy entries that define permissions granted to Java code running in the database. Each row represents a permission rule specifying:
  • Grantee: The user or role to whom the permission is assigned.
  • Permission Type: The specific Java permission (e.g., java.io.FilePermission, java.net.SocketPermission).
  • Target: The resource or action the permission applies to (e.g., file paths, network endpoints).
  • Actions: Allowed operations (read, write, execute, connect, etc.).

Relevance to Oracle EBS

In EBS environments, Java is extensively used for:
  • Custom Java Stored Procedures
  • Oracle Application Framework (OAF) components
  • Integration with external systems via Java APIs
  • Advanced reporting and business logic
The SYS.JAVA$POLICY$ table ensures these Java operations adhere to security policies, preventing unauthorized access to files, networks, or system resources. For example:
  • An OAF page requiring file system access must have corresponding FilePermission entries.
  • Integration code calling external web services needs SocketPermission for specific hosts/ports.

Technical Structure

Key columns in SYS.JAVA$POLICY$ include:
  • GRANTEE: User/Role receiving the permission.
  • TYPE_SCHEMA: Schema owning the permission type.
  • TYPE_NAME: Java permission class name.
  • NAME: Target resource (e.g., file path).
  • ACTION: Allowed actions (e.g., "read,write").
  • ENABLED: Status flag (Y/N).

Administration Considerations

Caution: Direct DML on this table is unsupported. Permissions should be managed via:
  • DBMS_JAVA.GRANT_PERMISSION: Grants new permissions.
  • DBMS_JAVA.REVOKE_PERMISSION: Removes permissions.
  • DBMS_JAVA.PERMISSION_DENIED: Explicitly denies access.
In EBS 12.2.x, Oracle recommends using AutoConfig for policy changes to maintain consistency across nodes in a shared filesystem environment.

Common Use Cases in EBS

  1. File Operations: Granting FilePermission for UTL_FILE directories or custom file I/O.
  2. Network Access: Allowing outbound connections via SocketPermission for web services.
  3. Security Hardening: Restricting permissions for least-privilege compliance.

Audit and Troubleshooting

Monitor permissions via:
  • SELECT * FROM SYS.JAVA$POLICY$ WHERE GRANTEE='APPS';
  • Oracle JVM trace logs for permission-related errors.
Permission issues manifest as java.security.AccessControlException in application logs.

Conclusion

The SYS.JAVA$POLICY$ table is a foundational component for Java security in Oracle EBS, enabling secure execution of Java code while maintaining strict access controls. Proper management of this table is essential for both functionality and security in EBS implementations, particularly for customizations and integrations leveraging Java capabilities.