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I was trying to Install OID (Oracle Identity Manager) and I got this error : Problem:         at oracle.as.install.engine.modules.configuration.standard.StandardConfigActionManager.start(StandardConfigActionManager.java:186)         at oracle.as.install.engine.modules.configuration.boot.ConfigurationExtension.kickstart(ConfigurationExtension.java:81)         at oracle.as.install.engine.modules.configuration.ConfigurationModule.run(ConfigurationModule.java:86)         at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.SecurityException: Can not initialize cryptographic mechanism         at javax.crypto.JceSecurity.<clinit>(JceSecurity.java:88)         ... 31 more Caused by: java.lang.SecurityException: The jurisdiction policy files are not signed by a trusted sig...

 Problem: [oracle@linux5 database]$ . runInstaller bash: /bin/install/.oui: No such file or directory [oracle@linux5 database]$ uname -a Linux linux5 3.8.13-16.2.1.el6uek.x86_64 #1 SMP Thu Nov 7 17:01:44 PST 2013 x86_64 x86_64 x86_64 GNU/Linux Solution: [oracle@linux5 database]$ ./runInstaller Starting Oracle Universal Installer... Checking Temp space: must be greater than 120 MB.   Actual 20461 MB    Passed Checking swap space: must be greater than 150 MB.   Actual 4031 MB    Passed Checking monitor: must be configured to display at least 256 colors.    Actual 16777216    Passed Preparing to launch Oracle Universal Installer from /tmp/OraInstall2016-11-22_09-46-02AM. Please wait ...[oracle@linux5 database]$

If you are not sure of what the dependent packages that might be blocking java then you can also use yum remove jdk* This will also take care of dependent rpms . [root@linux06 usr]# yum remove jdk1.8.0_111-1.8.0_111-fcs.i586 Loaded plugins: refresh-packagekit, security Setting up Remove Process Resolving Dependencies --> Running transaction check ---> Package jdk1.8.0_111.i586 2000:1.8.0_111-fcs will be erased --> Processing Dependency: java for package: jna-3.2.4-2.el6.x86_64 --> Running transaction check ---> Package jna.x86_64 0:3.2.4-2.el6 will be erased --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================  Package           Arch        Version                 Repository ...