Getting java.io.FileNotFoundException: /JBOSS/standalone/log/server.log - due to too may files open error in JBoss EAP.

Issue

• Application transaction stuck due to too many files open error in JBoss.
• Application transaction working fine after restarting JBoss service for some time but after it gets below error.

java.lang.RuntimeException: java.io.FileNotFoundException: /JBOSS/jboss-eap-6.4/standalone/log/server.log-19-Apr-2017 (Too many open files)
    at org.jboss.as.logging.LogFileResourceDefinition$4.execute(LogFileResourceDefinition.java:170) [jboss-as-logging-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]

Caused by: java.io.FileNotFoundException: /JBOSS/jboss-eap-6.4/standalone/log/server.log-19-Apr-2017 (Too many open files)
    at java.io.FileInputStream.open(Native Method) 

Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host xx.xx.xx.xx, port xx has failed. Error: "Too many open files. Verify the connection properties, check that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port and that no firewall is blocking TCP connections to the port.".