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javaproguardsnmpsnmp4j

How can i shrink SNMP4J library to extract trap sending feature

I want a specific feature (Traps) from SNMP4j, is there a way to get a new jar which only has this feature?

Solution

  • We can use proguard for this feature.

    1 Download proguard from https://sourceforge.net/projects/proguard/

    2 Create a file(shrink.pro) in libs folder of proguard and paste following lines

    -injars      snmp.jar 
-outjars     out.jar 
-libraryjars <java.home>/lib/rt.jar
-printmapping out.map 

-dontwarn
-ignorewarnings
-keepattributes

-keep public class org.snmp4j.smi.OID
-keep public class org.snmp4j.CommunityTarget
-keep public class org.snmp4j.smi.UdpAddress
-keep public class org.snmp4j.TransportMapping
-keep public class org.snmp4j.smi.OctetString
-keep public class org.snmp4j.smi.Variable
-keep public class org.snmp4j.transport.DefaultUdpTransportMapping
-keep public class org.snmp4j.smi.Address
-keep public class org.snmp4j.PDUv1
-keep public class org.snmp4j.smi.VariableBinding
-keep public class org.snmp4j.Snmp
-keep public class org.snmp4j.PDU
-keep public class org.snmp4j.ScopedPDU
-keep public class org.snmp4j.UserTarget
-keep public class org.snmp4j.mp.MPv3
-keep public class org.snmp4j.mp.SnmpConstants
-keep public class org.snmp4j.security.AuthMD5
-keep public class org.snmp4j.security.PrivDES
-keep public class org.snmp4j.security.SecurityLevel
-keep public class org.snmp4j.security.SecurityModel
-keep public class org.snmp4j.security.SecurityModels
-keep public class org.snmp4j.security.SecurityProtocols
-keep public class org.snmp4j.security.USM
-keep public class org.snmp4j.security.UsmUser
-keep public class org.snmp4j.smi.IpAddress

    3 run following command 

    java -jar proguard.jar @shrink.pro

    4 You will get your new jar in libs folder of proguard.