Jboss start fails : transport library not found

Issue :

ERROR: transport library not found: dt_shmem
ERROR: JDWP Transport dt_shmem failed to initialize, TRANSPORT_LOAD(509)
JDWP exit error AGENT_ERROR_TRANSPORT_LOAD(196): No transports initialized [../../../src/share/back/debugInit.c:750]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_LOAD(196)
./standalone.sh: line 173:  9965 Aborted                 (core dumped) "/usr/jdk1.7.0_71/bin/java" -D"[Standalone]"

Solutions :
I checked my standalone.conf

there was entry

# Sample JPDA settings for remote socket debugging

#JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n"

# Sample JPDA settings for shared memory debugging

JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_shmem,server=y,suspend=n,address=jboss"

I had to comment "Sample JPDA settings for shared memory debugging" and un-comment "ettings for remote socket debugging" also changed the port to 18787

like below

# Sample JPDA settings for remote socket debugging

JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_socket,address=18787,server=y,suspend=n"

# Sample JPDA settings for shared memory debugging

#JAVA_OPTS="$JAVA_OPTS -Xrunjdwp:transport=dt_shmem,server=y,suspend=n,address=jboss"