Added the unpersist api to JavaRDD.
Added the unpersist api to JavaRDD.

chuckchen/spark,Aegeaner/spark,ueshin/apache-spark,vinodkc/spark,bdrillard/spark,metamx/spark,akopich/spark,maropu/spark,chuckchen/spark,akopich/spark,facaiy/spark,mdespriee/spark,sachintyagi22/spark,WindCanDie/spark,andrewor14/iolap,icexelloss/spark,WeichenXu123/spark,wangmiao1981/spark,rikima/spark,wangmiao1981/spark,nlalevee/spark,bdrillard/spark,markhamstra/spark,Panos-Bletsos/spark-cost-model-optimizer,ioana-delaney/spark,joseph-torres/spark,nilsgrabbert/spark,sureshthalamati/spark,shubhamchopra/spark,SHASHANKB/spark,sryza/spark,akopich/spark,metamx/spark,liyichao/spark,milliman/spark,MLnick/spark,techaddict/spark,stanzhai/spark,brad-kaiser/spark,dbtsai/spark,rikima/spark,taroplus/spark,xuanyuanking/spark,big-pegasus/spark,skonto/spark,goldmedal/spark,gioenn/xSpark,publicRoman/spark,markhamstra/spark,dongjoon-hyun/spark,loneknightpy/spark,publicRoman/spark,patrick-nicholson/spark,byakuinss/spark,saturday-shi/spark,shuangshuangwang/spark,UndeadBaneGitHub/spark,pgandhi999/spark,sahilTakiar/spark,dhruve/spark,jiangxb1987/spark,rezasafi/spark,patrick-nicholson/spark,ueshin/apache-spark,map222/spark,caneGuy/spark,wangmiao1981/spark,dhruve/spark,apache-spark-on-k8s/spark,michalsenkyr/spark,milliman/spark,byakuinss/spark,facaiy/spark,liyichao/spark,markhamstra/spark,esi-mineset/spark,michalsenkyr/spark,zhouyejoe/spark,wangyum/spark,nilsgrabbert/spark,stanzhai/spark,techaddict/spark,wangyum/spark,tejasapatil/spark,mahak/spark,zhouyejoe/spark,ericvandenbergfb/spark,rezasafi/spark,HyukjinKwon/spark,wangmiao1981/spark,highfei2011/spark,patrick-nicholson/spark,zhouyejoe/spark,sryza/spark,bOOm-X/spark,someorz/spark,HyukjinKwon/spark,bOOm-X/spark,caneGuy/spark,bdrillard/spark,huang1900/spark,narahari92/spark,mdespriee/spark,pronix/spark,SHASHANKB/spark,byakuinss/spark,zuotingbing/spark,chuckchen/spark,milliman/spark,gengliangwang/spark,haowu80s/spark,guoxiaolongzte/spark,nilsgrabbert/spark,zero323/spark,darionyaphet/spark,narahari92/spark,SHASHANKB/spark,ioana-delaney/spark,ron8hu/spark,sahilTakiar/spark,ajaysaini725/spark,andrewor14/spark,saltstar/spark,setjet/spark,taroplus/spark,stanzhai/spark,nlalevee/spark,darionyaphet/spark,shuangshuangwang/spark,witgo/spark,jlopezmalla/spark,hhbyyh/spark,mzl9039/spark,michalsenkyr/spark,rekhajoshm/spark,tejasapatil/spark,sachintyagi22/spark,tengpeng/spark,vax11780/spark,rjpower/spark,cloudera/spark,holdenk/spark,WindCanDie/spark,metamx/spark,holdenk/spark,kevinyu98/spark,jkbradley/spark,kiszk/spark,janewangfb/spark,apache/spark,bravo-zhang/spark,guoxiaolongzte/spark,srowen/spark,wgpshashank/spark,adrian-ionescu/apache-spark,mike0sv/spark,hvanhovell/spark,jrshust/spark,darionyaphet/spark,huang1900/spark,dhruve/spark,spark-test/spark,jlopezmalla/spark,darionyaphet/spark,aray/spark,spark-test/spark,ericvandenbergfb/spark,zero323/spark,dbtsai/spark,kiszk/spark,markhamstra/spark,michalsenkyr/spark,poffuomo/spark,1haodian/spark,jianran/spark,lyogavin/spark,jianran/spark,JerryLead/spark,dbtsai/spark,aokolnychyi/spark,vax11780/spark,cin/spark,maropu/spark,ptkool/spark,brad-kaiser/spark,markhamstra/spark,ibm-research-ireland/sparkoscope,zhouyejoe/spark,bOOm-X/spark,1haodian/spark,sachintyagi22/spark,sureshthalamati/spark,BryanCutler/spark,hvanhovell/spark,yanboliang/spark,ddna1021/spark,jiangxb1987/spark,guoxiaolongzte/spark,xflin/spark,highfei2011/spark,apache/spark,rednaxelafx/apache-spark,LantaoJin/spark,aray/spark,ptkool/spark,joseph-torres/spark,cin/spark,stanzhai/spark,BryanCutler/spark,aosagie/spark,ron8hu/spark,highfei2011/spark,someorz/spark,mkolod/incubator-spark,kevinyu98/spark,gioenn/xSpark,zero323/spark,apache-spark-on-k8s/spark,dongjoon-hyun/spark,liutang123/spark,caneGuy/spark,publicRoman/spark,yanboliang/spark,big-pegasus/spark,ericvandenbergfb/spark,rezasafi/spark,Panos-Bletsos/spark-cost-model-optimizer,jianran/spark,debugger87/spark,tengpeng/spark,SHASHANKB/spark,sachintyagi22/spark,icexelloss/spark,xuanyuanking/spark,WeichenXu123/spark,ioana-delaney/spark,big-pegasus/spark,aosagie/spark,JerryLead/spark,rjpower/spark,shubhamchopra/spark,dotunolafunmiloye/spark,1haodian/spark,actuaryzhang/spark,goldmedal/spark,vax11780/spark,Panos-Bletsos/spark-cost-model-optimizer,Aegeaner/spark,szhem/spark,metamx/spark,brad-kaiser/spark,mzl9039/spark,highfei2011/spark,taroplus/spark,rezasafi/spark,cloudera/spark,wgpshashank/spark,metamx/spark,chuckchen/spark,brad-kaiser/spark,icexelloss/spark,vinodkc/spark,shuangshuangwang/spark,rikima/spark,zero323/spark,highfei2011/spark,witgo/spark,kimoonkim/spark,zero323/spark,wangmiao1981/spark,rikima/spark,Panos-Bletsos/spark-cost-model-optimizer,actuaryzhang/spark,MLnick/spark,jkbradley/spark,vinodkc/spark,andrewor14/iolap,ConeyLiu/spark,srowen/spark,ibm-research-ireland/sparkoscope,ibm-research-ireland/sparkoscope,caneGuy/spark,yanboliang/spark,hvanhovell/spark,minixalpha/spark,kissmetrics/spark,saltstar/spark,kevinyu98/spark,hhbyyh/spark,caneGuy/spark,UndeadBaneGitHub/spark,ibm-research-ireland/sparkoscope,mahak/spark,JoshRosen/spark,aray/spark,mdespriee/spark,rednaxelafx/apache-spark,setjet/spark,LantaoJin/spark,akopich/spark,jiangxb1987/spark,liutang123/spark,huang1900/spark,JoshRosen/spark,someorz/spark,mahak/spark,sureshthalamati/spark,BryanCutler/spark,LantaoJin/spark,xuanyuanking/spark,someorz/spark,setjet/spark,bOOm-X/spark,kimoonkim/spark,gengliangwang/spark,apache/spark,rekhajoshm/spark,witgo/spark,aokolnychyi/spark,mzl9039/spark,1haodian/spark,hhbyyh/spark,taroplus/spark,ptkool/spark,shaneknapp/spark,apache-spark-on-k8s/spark,facaiy/spark,ron8hu/spark,haowu80s/spark,dongjoon-hyun/spark,dotunolafunmiloye/spark,map222/spark,rjpower/spark,aray/spark,apache-spark-on-k8s/spark,akopich/spark,narahari92/spark,bravo-zhang/spark,ajaysaini725/spark,nlalevee/spark,sachintyagi22/spark,bOOm-X/spark,zuotingbing/spark,janewangfb/spark,stanzhai/spark,zuotingbing/spark,ueshin/apache-spark,shubhamchopra/spark,mike0sv/spark,lxsmnv/spark,mzl9039/spark,map222/spark,loneknightpy/spark,lxsmnv/spark,ahnqirage/spark,ConeyLiu/spark,kiszk/spark,patrick-nicholson/spark,cloud-fan/spark,kiszk/spark,HyukjinKwon/spark,wzhfy/spark,map222/spark,lvdongr/spark,vinodkc/spark,jianran/spark,esi-mineset/spark,mkolod/incubator-spark,sryza/spark,ericvandenbergfb/spark,gioenn/xSpark,ConeyLiu/spark,HyukjinKwon/spark,dbtsai/spark,esi-mineset/spark,LantaoJin/spark,JoshRosen/spark,nilsgrabbert/spark,highfei2011/spark,wzhfy/spark,SnappyDataInc/spark,kimoonkim/spark,mike0sv/spark,shuangshuangwang/spark,metamx/spark,mahak/spark,zhouyejoe/spark,kimoonkim/spark,dhruve/spark,xflin/spark,poffuomo/spark,apache/spark,ajaysaini725/spark,sryza/spark,map222/spark,lxsmnv/spark,loneknightpy/spark,lyogavin/spark,andrewor14/spark,rekhajoshm/spark,huang1900/spark,eyalfa/spark,sachintyagi22/spark,gioenn/xSpark,jrshust/spark,bravo-zhang/spark,pronix/spark,chuckchen/spark,nchammas/spark,setjet/spark,esi-mineset/spark,milliman/spark,liyichao/spark,szhem/spark,WeichenXu123/spark,nlalevee/spark,alunarbeach/spark,lvdongr/spark,sahilTakiar/spark,ibm-research-ireland/sparkoscope,aray/spark,rekhajoshm/spark,WindCanDie/spark,shubhamchopra/spark,someorz/spark,zhouyejoe/spark,cloudera/spark,lyogavin/spark,ddna1021/spark,goldmedal/spark,wzhfy/spark,facaiy/spark,icexelloss/spark,rjpower/spark,eyalfa/spark,sureshthalamati/spark,haowu80s/spark,jkbradley/spark,BryanCutler/spark,actuaryzhang/spark,pronix/spark,michalsenkyr/spark,shubhamchopra/spark,guoxiaolongzte/spark,wangyum/spark,ahnqirage/spark,chuckchen/spark,haowu80s/spark,cloudera/spark,sahilTakiar/spark,mahak/spark,jrshust/spark,alunarbeach/spark,byakuinss/spark,lxsmnv/spark,pgandhi999/spark,zhouyejoe/spark,rednaxelafx/apache-spark,minixalpha/spark,xflin/spark,liutang123/spark,WeichenXu123/spark,alunarbeach/spark,kimoonkim/spark,guoxiaolongzte/spark,xflin/spark,maropu/spark,joseph-torres/spark,dbtsai/spark,shaneknapp/spark,facaiy/spark,milliman/spark,nlalevee/spark,saturday-shi/spark,wangyum/spark,BryanCutler/spark,ddna1021/spark,kiszk/spark,SHASHANKB/spark,zzcclp/spark,andrewor14/iolap,haowu80s/spark,saturday-shi/spark,esi-mineset/spark,setjet/spark,lvdongr/spark,dhruve/spark,sahilTakiar/spark,techaddict/spark,kiszk/spark,srowen/spark,sahilTakiar/spark,gengliangwang/spark,gengliangwang/spark,ahnqirage/spark,sureshthalamati/spark,matthewfranglen/spark,jkbradley/spark,SHASHANKB/spark,JoshRosen/spark,tengpeng/spark,shaneknapp/spark,mike0sv/spark,tengpeng/spark,mzl9039/spark,huang1900/spark,ajaysaini725/spark,ptkool/spark,debugger87/spark,tejasapatil/spark,jiangxb1987/spark,shuangshuangwang/spark,kevinyu98/spark,skonto/spark,wzhfy/spark,HyukjinKwon/spark,lvdongr/spark,SnappyDataInc/spark,JoshRosen/spark,skonto/spark,srowen/spark,someorz/spark,zuotingbing/spark,lyogavin/spark,patrick-nicholson/spark,jlopezmalla/spark,map222/spark,joseph-torres/spark,publicRoman/spark,milliman/spark,lvdongr/spark,narahari92/spark,liyichao/spark,stanzhai/spark,szhem/spark,jlopezmalla/spark,eyalfa/spark,tejasapatil/spark,zzcclp/spark,apache-spark-on-k8s/spark,publicRoman/spark,xflin/spark,UndeadBaneGitHub/spark,skonto/spark,gioenn/xSpark,saturday-shi/spark,wgpshashank/spark,rezasafi/spark,guoxiaolongzte/spark,rekhajoshm/spark,brad-kaiser/spark,minixalpha/spark,patrick-nicholson/spark,rjpower/spark,tengpeng/spark,nilsgrabbert/spark,mahak/spark,big-pegasus/spark,ueshin/apache-spark,actuaryzhang/spark,adrian-ionescu/apache-spark,zuotingbing/spark,markhamstra/spark,akopich/spark,narahari92/spark,milliman/spark,andrewor14/iolap,jrshust/spark,jrshust/spark,liutang123/spark,rezasafi/spark,maropu/spark,minixalpha/spark,narahari92/spark,MLnick/spark,shuangshuangwang/spark,aosagie/spark,rezasafi/spark,pgandhi999/spark,ibm-research-ireland/sparkoscope,sureshthalamati/spark,aosagie/spark,andrewor14/spark,SHASHANKB/spark,rikima/spark,hvanhovell/spark,sachintyagi22/spark,pgandhi999/spark,ron8hu/spark,dotunolafunmiloye/spark,mkolod/incubator-spark,xuanyuanking/spark,jkbradley/spark,jrshust/spark,huang1900/spark,debugger87/spark,hvanhovell/spark,dongjoon-hyun/spark,nchammas/spark,saltstar/spark,kissmetrics/spark,alunarbeach/spark,tengpeng/spark,big-pegasus/spark,patrick-nicholson/spark,xflin/spark,taroplus/spark,WeichenXu123/spark,lyogavin/spark,tejasapatil/spark,maropu/spark,pgandhi999/spark,jiangxb1987/spark,gioenn/xSpark,WeichenXu123/spark,MLnick/spark,vinodkc/spark,someorz/spark,kissmetrics/spark,1haodian/spark,bdrillard/spark,saltstar/spark,panfengfeng/spark,skonto/spark,adrian-ionescu/apache-spark,mkolod/incubator-spark,ioana-delaney/spark,nilsgrabbert/spark,BryanCutler/spark,poffuomo/spark,joseph-torres/spark,cloud-fan/spark,aray/spark,ericvandenbergfb/spark,caneGuy/spark,ahnqirage/spark,saturday-shi/spark,lxsmnv/spark,jianran/spark,janewangfb/spark,hvanhovell/spark,mdespriee/spark,holdenk/spark,pgandhi999/spark,adrian-ionescu/apache-spark,MLnick/spark,xuanyuanking/spark,szhem/spark,chuckchen/spark,WindCanDie/spark,tengpeng/spark,WindCanDie/spark,Panos-Bletsos/spark-cost-model-optimizer,lvdongr/spark,jianran/spark,nlalevee/spark,bOOm-X/spark,poffuomo/spark,brad-kaiser/spark,bravo-zhang/spark,mahak/spark,minixalpha/spark,loneknightpy/spark,esi-mineset/spark,techaddict/spark,rekhajoshm/spark,shubhamchopra/spark,darionyaphet/spark,mike0sv/spark,wangmiao1981/spark,saltstar/spark,poffuomo/spark,mike0sv/spark,skonto/spark,liutang123/spark,srowen/spark,gengliangwang/spark,liyichao/spark,ConeyLiu/spark,alunarbeach/spark,witgo/spark,apache/spark,kissmetrics/spark,ddna1021/spark,mdespriee/spark,kimoonkim/spark,loneknightpy/spark,michalsenkyr/spark,tejasapatil/spark,highfei2011/spark,zero323/spark,ahnqirage/spark,aokolnychyi/spark,WindCanDie/spark,spark-test/spark,ibm-research-ireland/sparkoscope,minixalpha/spark,mzl9039/spark,wgpshashank/spark,rednaxelafx/apache-spark,cloud-fan/spark,brad-kaiser/spark,ddna1021/spark,srowen/spark,dbtsai/spark,saltstar/spark,MLnick/spark,ptkool/spark,ueshin/apache-spark,jlopezmalla/spark,andrewor14/spark,wzhfy/spark,setjet/spark,poffuomo/spark,big-pegasus/spark,panfengfeng/spark,JerryLead/spark,bdrillard/spark,kimoonkim/spark,shaneknapp/spark,kissmetrics/spark,yanboliang/spark,kevinyu98/spark,facaiy/spark,saturday-shi/spark,goldmedal/spark,yanboliang/spark,wangyum/spark,szhem/spark,andrewor14/iolap,MLnick/spark,setjet/spark,jrshust/spark,zzcclp/spark,rikima/spark,hhbyyh/spark,darionyaphet/spark,1haodian/spark,xflin/spark,SnappyDataInc/spark,ConeyLiu/spark,byakuinss/spark,cin/spark,WindCanDie/spark,esi-mineset/spark,ptkool/spark,techaddict/spark,byakuinss/spark,ioana-delaney/spark,SnappyDataInc/spark,szhem/spark,cin/spark,jlopezmalla/spark,UndeadBaneGitHub/spark,pronix/spark,mike0sv/spark,ueshin/apache-spark,hvanhovell/spark,zzcclp/spark,aosagie/spark,maropu/spark,liyichao/spark,cin/spark,wangyum/spark,kiszk/spark,darionyaphet/spark,dhruve/spark,icexelloss/spark,sahilTakiar/spark,lxsmnv/spark,rednaxelafx/apache-spark,goldmedal/spark,narahari92/spark,nilsgrabbert/spark,mdespriee/spark,techaddict/spark,xuanyuanking/spark,byakuinss/spark,adrian-ionescu/apache-spark,jiangxb1987/spark,JerryLead/spark,ajaysaini725/spark,icexelloss/spark,debugger87/spark,skonto/spark,ahnqirage/spark,sryza/spark,HyukjinKwon/spark,vinodkc/spark,wangyum/spark,spark-test/spark,loneknightpy/spark,jlopezmalla/spark,dhruve/spark,JerryLead/spark,gengliangwang/spark,Panos-Bletsos/spark-cost-model-optimizer,jiangxb1987/spark,shuangshuangwang/spark,witgo/spark,taroplus/spark,ConeyLiu/spark,LantaoJin/spark,cin/spark,kevinyu98/spark,holdenk/spark,zzcclp/spark,joseph-torres/spark,guoxiaolongzte/spark,spark-test/spark,apache-spark-on-k8s/spark,nchammas/spark,SnappyDataInc/spark,kissmetrics/spark,bravo-zhang/spark,WeichenXu123/spark,jkbradley/spark,ericvandenbergfb/spark,SnappyDataInc/spark,ron8hu/spark,nlalevee/spark,debugger87/spark,holdenk/spark,icexelloss/spark,andrewor14/iolap,rednaxelafx/apache-spark,yanboliang/spark,zuotingbing/spark,nchammas/spark,xuanyuanking/spark,aokolnychyi/spark,nchammas/spark,holdenk/spark,aokolnychyi/spark,shaneknapp/spark,yanboliang/spark,ConeyLiu/spark,hhbyyh/spark,Aegeaner/spark,alunarbeach/spark,andrewor14/spark,loneknightpy/spark,minixalpha/spark,cloud-fan/spark,aosagie/spark,goldmedal/spark,jianran/spark,gioenn/xSpark,apache/spark,shubhamchopra/spark,dotunolafunmiloye/spark,michalsenkyr/spark,lvdongr/spark,szhem/spark,wzhfy/spark,panfengfeng/spark,ddna1021/spark,kevinyu98/spark,zzcclp/spark,markhamstra/spark,andrewor14/spark,facaiy/spark,cloud-fan/spark,UndeadBaneGitHub/spark,Aegeaner/spark,janewangfb/spark,eyalfa/spark,akopich/spark,publicRoman/spark,taroplus/spark,BryanCutler/spark,UndeadBaneGitHub/spark,sureshthalamati/spark,ericvandenbergfb/spark,haowu80s/spark,ron8hu/spark,janewangfb/spark,JerryLead/spark,map222/spark,ajaysaini725/spark,metamx/spark,poffuomo/spark,srowen/spark,aokolnychyi/spark,shaneknapp/spark,zero323/spark,ajaysaini725/spark,zuotingbing/spark,janewangfb/spark,panfengfeng/spark,mkolod/incubator-spark,1haodian/spark,goldmedal/spark,cloud-fan/spark,UndeadBaneGitHub/spark,pronix/spark,JoshRosen/spark,shaneknapp/spark,bravo-zhang/spark,vax11780/spark,liyichao/spark,andrewor14/spark,adrian-ionescu/apache-spark,aray/spark,ueshin/apache-spark,actuaryzhang/spark,apache-spark-on-k8s/spark,debugger87/spark,rekhajoshm/spark,big-pegasus/spark,cin/spark,kissmetrics/spark,spark-test/spark,SnappyDataInc/spark,saltstar/spark,cloudera/spark,debugger87/spark,bravo-zhang/spark,saturday-shi/spark,joseph-torres/spark,ioana-delaney/spark,eyalfa/spark,gengliangwang/spark,holdenk/spark,panfengfeng/spark,techaddict/spark,dbtsai/spark,jkbradley/spark,actuaryzhang/spark,liutang123/spark,LantaoJin/spark,apache/spark,alunarbeach/spark,mdespriee/spark,stanzhai/spark,tejasapatil/spark,LantaoJin/spark,huang1900/spark,pgandhi999/spark,caneGuy/spark,bdrillard/spark,eyalfa/spark,JoshRosen/spark,cloud-fan/spark,panfengfeng/spark,janewangfb/spark,ahnqirage/spark,andrewor14/iolap,dongjoon-hyun/spark,aosagie/spark,Aegeaner/spark,actuaryzhang/spark,panfengfeng/spark,dongjoon-hyun/spark,vax11780/spark,nchammas/spark,Aegeaner/spark,ddna1021/spark,publicRoman/spark,hhbyyh/spark,bOOm-X/spark,eyalfa/spark,wangmiao1981/spark,liutang123/spark,adrian-ionescu/apache-spark,nchammas/spark,pronix/spark,HyukjinKwon/spark,aokolnychyi/spark,bdrillard/spark,vinodkc/spark,ioana-delaney/spark,maropu/spark,spark-test/spark,Aegeaner/spark,witgo/spark,lxsmnv/spark,hhbyyh/spark,ptkool/spark,dongjoon-hyun/spark,ron8hu/spark,rednaxelafx/apache-spark,wzhfy/spark,rikima/spark,JerryLead/spark,zzcclp/spark,mzl9039/spark,Panos-Bletsos/spark-cost-model-optimizer,witgo/spark