diff --git a/infer/src/integration/JsonReports.ml b/infer/src/integration/JsonReports.ml
index 26c6a18d0..a4ca0297b 100644
--- a/infer/src/integration/JsonReports.ml
+++ b/infer/src/integration/JsonReports.ml
@@ -259,7 +259,9 @@ module JsonCostsPrinter = MakeJsonListPrinter (struct
           ; hum= hum cost }
         in
         let cost_item =
-          let file = SourceFile.to_rel_path loc.Location.file in
+          let file =
+            SourceFile.to_string ~force_relative:Config.report_force_relative_path loc.Location.file
+          in
           { Jsonbug_t.hash= compute_hash ~severity:"" ~bug_type:"" ~proc_name ~file ~qualifier:""
           ; loc= {file; lnum= loc.Location.line; cnum= loc.Location.col; enum= -1}
           ; procedure_name= Procname.get_method proc_name
diff --git a/infer/tests/codetoanalyze/java/fb-performance/Makefile b/infer/tests/codetoanalyze/java/fb-performance/Makefile
index 24eb094e6..9b306a151 100644
--- a/infer/tests/codetoanalyze/java/fb-performance/Makefile
+++ b/infer/tests/codetoanalyze/java/fb-performance/Makefile
@@ -8,6 +8,8 @@ TESTS_DIR = ../../..
 INFER_OPTIONS = --cost-only --bufferoverrun --debug-exceptions --use-cost-threshold \
   --report-force-relative-path
 INFERPRINT_OPTIONS = --issues-tests
+INFERPRINT_COST_OPTIONS = --cost-issues-tests
 SOURCES = $(wildcard *.java)
 
 include $(TESTS_DIR)/javac.make
+include $(TESTS_DIR)/cost.make
diff --git a/infer/tests/codetoanalyze/java/fb-performance/cost-issues.exp b/infer/tests/codetoanalyze/java/fb-performance/cost-issues.exp
new file mode 100644
index 000000000..145a61d53
--- /dev/null
+++ b/infer/tests/codetoanalyze/java/fb-performance/cost-issues.exp
@@ -0,0 +1,7 @@
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.<init>(), 3,  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.appendSegmentFormat(java.lang.StringBuilder,java.lang.String,int,java.lang.Object,boolean):int, 2,  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.call_appendSegmentFormat_linear(java.lang.StringBuilder,java.lang.String,int,java.lang.Object,boolean):void, 7 + (-startIdx + format.length),  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.call_doFormatArgs_linear(java.lang.StringBuilder,java.lang.String,int,java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object):void, 9 + format.length,  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.call_doFormatArray_linear(java.lang.StringBuilder,java.lang.String,java.lang.Object[]):void, 5 + format.length,  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.doFormatArgs(java.lang.StringBuilder,java.lang.String,int,java.lang.Object,java.lang.Object,java.lang.Object,java.lang.Object):int, 2,  OnUIThread:false
+../../facebook/skel/infer/tests/codetoanalyze/java/fb-performance/StringFormatUtil.java, com.facebook.common.stringformat.StringFormatUtil.doFormatArray(java.lang.StringBuilder,java.lang.String,java.lang.Object[]):int, 2,  OnUIThread:false
diff --git a/infer/tests/codetoanalyze/java/performance-exclusive/Makefile b/infer/tests/codetoanalyze/java/performance-exclusive/Makefile
index f2abd5648..56e0e2826 100644
--- a/infer/tests/codetoanalyze/java/performance-exclusive/Makefile
+++ b/infer/tests/codetoanalyze/java/performance-exclusive/Makefile
@@ -7,6 +7,8 @@ TESTS_DIR = ../../..
 
 INFER_OPTIONS = --cost-only --no-inclusive-cost --bufferoverrun --debug-exceptions --use-cost-threshold
 INFERPRINT_OPTIONS = --issues-tests
+INFERPRINT_COST_OPTIONS = --cost-issues-tests
 SOURCES = $(wildcard *.java)
 
 include $(TESTS_DIR)/javac.make
+include $(TESTS_DIR)/cost.make
diff --git a/infer/tests/codetoanalyze/java/performance-exclusive/cost-issues.exp b/infer/tests/codetoanalyze/java/performance-exclusive/cost-issues.exp
new file mode 100644
index 000000000..13f7f0000
--- /dev/null
+++ b/infer/tests/codetoanalyze/java/performance-exclusive/cost-issues.exp
@@ -0,0 +1,4 @@
+codetoanalyze/java/performance-exclusive/ExclusiveTest.java, ExclusiveTest.<init>(), 2,  OnUIThread:false
+codetoanalyze/java/performance-exclusive/ExclusiveTest.java, ExclusiveTest.call_linear_exclusive_constant(int):void, 3,  OnUIThread:false
+codetoanalyze/java/performance-exclusive/ExclusiveTest.java, ExclusiveTest.call_linear_exclusive_linear(int):void, 5 + 7 ⋅ x,  OnUIThread:false
+codetoanalyze/java/performance-exclusive/ExclusiveTest.java, ExclusiveTest.linear(int):void, 5 + 5 ⋅ x,  OnUIThread:false
diff --git a/infer/tests/cost.make b/infer/tests/cost.make
index 01241b116..7f2ebc7a4 100644
--- a/infer/tests/cost.make
+++ b/infer/tests/cost.make
@@ -23,4 +23,4 @@ cost-replace: cost-issues.exp.test$(TEST_SUFFIX)
 clean: cost-clean
 
 cost-clean:
-	rm cost-issues.exp.test$(TEST_SUFFIX)
+	$(REMOVE) cost-issues.exp.test$(TEST_SUFFIX)