1) Download the "Oracle SOA Suite" from OTN Release 12c (12.1.3.0.0) . Downloade zip file name is "jsonedit-repository-0.9.7.zip"
http://www.oracle.com/technetwork/middleware/soasuite/downloads/index.html
2) Extract the file and it will have two jar files .
drwxr-xr-x 2 harish hgroup 4096 Feb 22 09:32 jsonedit-repository-0.9.7
[celapp@myhost Jdev]$ cd jsonedit-repository-0.9.7/
[myhost@myhost jsonedit-repository-0.9.7]$ ls
fmw_12.1.3.0.0_soa_quickstart2.jar fmw_12.1.3.0.0_soa_quickstart.jar
[myhost@myhost jsonedit-repository-0.9.7]$ java -jar -Xms4g fmw_12.1.3.0.0_soa_quickstart.jar
Launcher log file is /tmp/OraInstall2015-02-22_09-50-41AM/launcher2015-02-22_09-50-41AM.log.
Insufficient free space in /tmp/orcl6637823415702905917.tmp to extract the installer. Actual 2691 MB. Required 3053 MB.
[myhost@myhost jsonedit-repository-0.9.7]$ java -jar -Djava.io.tmpdir=/opt/tmp/tmp -Xms4g fmw_12.1.3.0.0_soa_quickstart.jar
Launcher log file is /opt/tmp/tmp/OraInstall2015-02-22_09-53-47AM/launcher2015-02-22_09-53-47AM.log.
Extracting files................................
Starting Oracle Universal Installer
Checking if CPU speed is above 300 MHz. Actual 2128.002 MHz Passed
Checking monitor: must be configured to display at least 256 colors. Actual 16777216 Passed
Checking swap space: must be greater than 512 MB. Actual 8388600 MB Passed
Checking if this platform requires a 64-bit JVM. Actual 64 Passed (64-bit not required)
Checking temp space: must be greater than 300 MB. Actual 18121 MB Passed
Preparing to launch the Oracle Universal Installer from /opt/tmp/tmp/OraInstall2015-02-22_09-53-47AM
Log: /opt/tmp/tmp/OraInstall2015-02-22_09-53-47AM/install2015-02-22_09-53-47AM.log
You can find the log of this install session at:
/opt/tmp/tmp/OraInstall2015-02-22_09-53-47AM/install2015-02-22_09-53-47AM.log
Oracle JDeveloper 12c 12.1.3.0.0
Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
Logs successfully copied to /home/myhost/oraInventory/logs.
[myhost@myhost jsonedit-repository-0.9.7]$