Upgrading to J2SE 1.4.2 with Oracle Applications 11i

To upgrade to J2SE 1.4, ensure that the E-Business Suite Release 11i environment has been upgraded to Maintenance Pack 11.5.9 or higher, or that it was created using the Oracle E-Business Suite Release 11.5.9 Rapid Install. Oracle E-Business Suite Releases 11.5.10 Rapid Install installs and configures J2SE 1.4.2 during the installation.

The overall upgrade process consists of the following sections:

Section 1: Obtain and Install J2SE 1.4 on all Application Tier Nodes
  Download & Install J2SE 1.4 (http://java.sun.com/j2se/1.4.2/download.html)
Section 2: Obtain Applications Interoperability Patches
  BIS Patchset 3894718 (E-Business Intelligence Users only)
  3594604 (TXK Rollup Patch I)
  3239047 (J2SE 1.4 Consolidated Patch)
Section 2a: Obtain Other Product Interoperability Patches
  3695147 - Universal Work Queue (IEU)
  3199598 - Collections (IEX)
  3503919 - Web Applications Desktop Integrator (BNE)
  3975013 - AD Utilities Patch
Section 3: Prepare the Application Tier for Patching and Apply the patches
  Stop all Application Tier Server Processes
  Create the Applications File Snapshot Using AD Admin (conditional)
  Apply All the above Patches
Section 4: Configure all Application Tier Nodes to Support J2SE 1.4
  Execute the J2SE 1.4 Upgrade Script to Update Configurations Files
  txkJdkM.sh jdktop=[JDK14_TOP][contextfile=] [log=] [appspass=]
  Execute the J2SE 1.4 AD Utilities Upgrade Script (conditional)
  perl /bin/adjavamig.pl java=[JDK14_TOP] [contextfile=][logfile=][-help]
  Run AutoConfig
  Regenerate the "appsborg2.zip" File & Product JAR Files
  Restart all Application Tier Server Processes
Section 5: Verify the Application Tier Node Configurations
  Verify Configurations for HTTP Server Node
  Verify Configurations for all Application Tier Nodes

Please Refer Metalink Note 246105.1. This Note Contains the detailed steps to Upgrade JDK.