Use jdk.GetJavaExecutable() in tools.

Bug: 124239658
Change-Id: Ia2fce6eb5f25000f519d499f70fb54d04c7dfd66
diff --git a/tools/retrace.py b/tools/retrace.py
index 1b77e9a..44120f2 100755
--- a/tools/retrace.py
+++ b/tools/retrace.py
@@ -5,6 +5,7 @@
 
 import archive
 import argparse
+import jdk
 import subprocess
 import sys
 import tempfile
@@ -49,7 +50,9 @@
       print('Could not find map file from argument: %s.' % hashOrVersion)
       return 1
 
-  retrace_args = ['java', '-jar', utils.RETRACE_JAR, r8lib_map_path]
+  retrace_args = [
+    jdk.GetJavaExecutable(), '-jar', utils.RETRACE_JAR, r8lib_map_path
+  ]
   if args.stacktrace:
     retrace_args.append(args.stacktrace)