Project no longer builds successfully since commit fca2b4c7b4f698257de1bca256db49d2bbd1315d

[X-m7]

This is the output I get when I run ant build, on Linux with OpenJDK version 1.8.0_402 and Ant version 1.10.14:

Buildfile: /home/m7/Documents/spm/ncl_sfcsim/build.xml

init:
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/classes
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/docs
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/docs/api
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/test
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/test/report
    [mkdir] Created dir: /home/m7/Documents/spm/ncl_sfcsim/test/report/html

resources:

build:
    [javac] /home/m7/Documents/spm/ncl_sfcsim/build.xml:61: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
    [javac] Compiling 82 source files to /home/m7/Documents/spm/ncl_sfcsim/classes
    [javac] /home/m7/Documents/spm/ncl_sfcsim/src/net/gripps/cloud/nfv/sfc/SFCGenerator.java:186: error: cannot find symbol
    [javac]             c.autoconfigureVNFCluster(sfc);
    [javac]              ^
    [javac]   symbol:   method autoconfigureVNFCluster(SFC)
    [javac]   location: variable c of type VNFCluster
    [javac] /home/m7/Documents/spm/ncl_sfcsim/src/net/gripps/cloud/nfv/sfc/SFCGenerator.java:256: error: cannot find symbol
    [javac]                     long imageSize = NFVUtil.genLong(NFVUtil.vnf_image_size_min, NFVUtil.vnf_image_size_max);
    [javac]                                                             ^
    [javac]   symbol:   variable vnf_image_size_min
    [javac]   location: class NFVUtil
    [javac] /home/m7/Documents/spm/ncl_sfcsim/src/net/gripps/cloud/nfv/sfc/SFCGenerator.java:256: error: cannot find symbol
    [javac]                     long imageSize = NFVUtil.genLong(NFVUtil.vnf_image_size_min, NFVUtil.vnf_image_size_max);
    [javac]                                                                                         ^
    [javac]   symbol:   variable vnf_image_size_max
    [javac]   location: class NFVUtil
    [javac] /home/m7/Documents/spm/ncl_sfcsim/src/net/gripps/cloud/nfv/sfc/SFCGenerator.java:258: error: cannot find symbol
    [javac]                     vnf.setImageSize(imageSize);
    [javac]                        ^
    [javac]   symbol:   method setImageSize(long)
    [javac]   location: variable vnf of type VNF
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 4 errors

BUILD FAILED
/home/m7/Documents/spm/ncl_sfcsim/build.xml:61: Compile failed; see the compiler error output for details.

Total time: 1 second

If I go back to commit ff0aeff then the project builds successfully.