"java.lang.OutOfMemoryError: Java heap space" while Uploading attachments to Confluence page

Please find the sample exception that is raised while uploading attachments
[confluence] Uploading attachments to Confluence page:
https://confluence.ncr.com/pages/viewpage.action?pageId=315214000
[confluence] Evaluating fileset pattern: ArchiveNow/*/.xls
[confluence] Found 25 workspace artifact(s) to upload to Confluence...
[confluence] Uploading 25 file(s) to Confluence...
[confluence] - Uploading file: BalanceInquiry_DetailResults.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_DetailResults.xls?version=12&modificationDate=1569999514974&api=v2
[confluence] - Uploading file: BalanceInquiry_NCR.APTRA.CnsmrAppActivateEnterprise.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_NCR.APTRA.CnsmrAppActivateEnterprise.xls?version=14&modificationDate=1569999516332&api=v2
[confluence] - Uploading file: BalanceInquiry_NCR.APTRA.SSTMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_NCR.APTRA.SSTMonitor.xls?version=14&modificationDate=1569999517674&api=v2
[confluence] - Uploading file: BalanceInquiry_NCR.APTRA.WMIXFSMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_NCR.APTRA.WMIXFSMonitor.xls?version=14&modificationDate=1569999519122&api=v2
[confluence] - Uploading file: BalanceInquiry_Ncr.Connections.Client.Browser.Process.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_Ncr.Connections.Client.Browser.Process.xls?version=14&modificationDate=1569999520643&api=v2
[confluence] - Uploading file: BalanceInquiry_PerfCountersLeakSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_PerfCountersLeakSummary.xls?version=11&modificationDate=1569999521709&api=v2
[confluence] - Uploading file: BalanceInquiry_ResultsSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_ResultsSummary.xls?version=14&modificationDate=1569999522769&api=v2
[confluence] - Uploading file: BalanceInquiry_StartSupv.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/BalanceInquiry_StartSupv.xls?version=14&modificationDate=1569999524275&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_DetailResults.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_DetailResults.xls?version=1&modificationDate=1569999525552&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_NCR.APTRA.CnsmrAppActivateEnterprise.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_NCR.APTRA.CnsmrAppActivateEnterprise.xls?version=1&modificationDate=1569999526756&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_NCR.APTRA.SSTMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_NCR.APTRA.SSTMonitor.xls?version=1&modificationDate=1569999527955&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_NCR.APTRA.WMIXFSMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_NCR.APTRA.WMIXFSMonitor.xls?version=1&modificationDate=1569999529151&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_Ncr.Connections.Client.Browser.Process.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_Ncr.Connections.Client.Browser.Process.xls?version=1&modificationDate=1569999530354&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_PerfCountersLeakSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_PerfCountersLeakSummary.xls?version=1&modificationDate=1569999531336&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_ResultsSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_ResultsSummary.xls?version=1&modificationDate=1569999532308&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_BALANCE_StartSupv.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_BALANCE_StartSupv.xls?version=1&modificationDate=1569999533526&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_DetailResults.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_DetailResults.xls?version=12&modificationDate=1569999534776&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_NCR.APTRA.CnsmrAppActivateEnterprise.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_NCR.APTRA.CnsmrAppActivateEnterprise.xls?version=12&modificationDate=1569999536033&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_NCR.APTRA.SSTMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_NCR.APTRA.SSTMonitor.xls?version=12&modificationDate=1569999537329&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_NCR.APTRA.WMIXFSMonitor.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_NCR.APTRA.WMIXFSMonitor.xls?version=12&modificationDate=1569999538576&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_Ncr.Connections.Client.Browser.Process.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_Ncr.Connections.Client.Browser.Process.xls?version=12&modificationDate=1569999539942&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_PerfCountersLeakSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_PerfCountersLeakSummary.xls?version=9&modificationDate=1569999541216&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_ResultsSummary.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_ResultsSummary.xls?version=12&modificationDate=1569999542225&api=v2
[confluence] - Uploading file: CASHWITHDRAWAL_StartSupv.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/CASHWITHDRAWAL_StartSupv.xls?version=12&modificationDate=1569999543475&api=v2
[confluence] - Uploading file: developmentBin_2269_Automation_MemoryLeakResults.xls (application/octet-stream)
[confluence] done:
https://confluence.ncr.com/download/attachments/315214000/developmentBin_2269_Automation_MemoryLeakResults.xls?version=2&modificationDate=1569999546908&api=v2
[confluence] Done
[confluence] EXPERIMENTAL: performing storage format edits on Confluence 4.0
FATAL: Java heap space
java.lang.OutOfMemoryError: Java heap space
Extended Email Publisher is currently disabled in project settings
Triggering a new build of
AE-RegressionTestRuns
Finished: FAILURE