The Certificate is not valid and cannot be used to verify

 I was working of oracle apps which was working fine for. One day Suddenly i was unable to launch application.

Note Application was using Java to launch.

Do you want to Continue?

The connection to this website is untrusted.

Note the certificate is not valid and cannot be used to verify the identity of this website.

More Information:

The certificate used to identify the website is not trusted. The reasons are listed below

The certificate Authority that issued this certificate is not trusted.

Problem - 

I was using JDK 1.7 some point of moment i upgrade Java to 1.8

Solution

Restore JDK back to 1.7 or use JAVA_HOME variable as 1.7

Oracle Database IMPDP Error

Error:

import done in AL32UTF8 character set and AL16UTF16 NCHAR character set
export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
Warning: possible data loss in character set conversions
Starting "*DatabaseName*"."SYS_IMPORT_FULL_01":  
*DatabaseName*/******** DIRECTORY=MYDIR DUMPFILE=BackupName.DMP LOGFILE=BackupName.log PARALLEL=8 remap_schema=OldDBName:NewDbName remap_tablespace=OldTbName:NewTbName,OldTb1Name:NewTb1Name, remap_Table=dbname.table_name:newdbName.tableName table_exists_action=TRUNCATE
Processing object type TABLE_EXPORT/TABLE/TABLE
Table "*DatabaseName*"."table_name" exists and has been truncated. Data will be loaded but all dependent metadata will be skipped due to table_exists_action of truncate
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
ORA-31693: Table data object "*DatabaseName*"."table_name" failed to load/unload and is being skipped due to error:
ORA-29913: error in executing ODCIEXTTABLEFETCH callout
ORA-01403: no data found
ORA-04088: error during execution of trigger '*DatabaseName*.****'

 

Solution

change parameter = table_exists_action=TRUNCATE  to table_exists_action=REPLACE

error while inserting record in salesforce

Error:
INVALID_FIELD_FOR_INSERT_UPDATE Error message: Unable to create/update field  Please check the security settings of this field and verify that it is read/write for your profile or permission.

Solution:
remove the fields from migration which are mentioned in above error
cause those fields will be populated automatically by salesforce (while migration)
field data type may be "auto generate" or " Formula"