test/hotspot/jtreg/runtime/MemberName/MemberNameLeak.java

*** 32,68 ****
   */
  
  import java.lang.invoke.*;
  import jdk.test.lib.process.OutputAnalyzer;
  import jdk.test.lib.process.ProcessTools;
! 
  import sun.hotspot.code.Compiler;
  
  public class MemberNameLeak {
      static class Leak {
        public void callMe() {
        }
  
        public static void main(String[] args) throws Throwable {
          Leak leak = new Leak();
  
          for (int i = 0; i < 10; i++) {
            MethodHandles.Lookup lookup = MethodHandles.lookup();
            MethodType mt = MethodType.fromMethodDescriptorString("()V", Leak.class.getClassLoader());
            // findSpecial leaks some native mem
            MethodHandle mh = lookup.findSpecial(Leak.class, "callMe", mt, Leak.class);
            mh.invokeExact(leak);
          }
  
          System.gc();  // make mh unused
        }
      }
  
      public static void test(String gc) throws Throwable {
         // Run this Leak class with logging
          ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
                                        "-Xlog:membername+table=trace",
                                        gc, Leak.class.getName());
          OutputAnalyzer output = new OutputAnalyzer(pb.start());
          output.shouldContain("ResolvedMethod entry added for MemberNameLeak$Leak.callMe()V");
          output.shouldContain("ResolvedMethod entry found for MemberNameLeak$Leak.callMe()V");
          output.shouldContain("ResolvedMethod entry removed");
--- 32,78 ----
   */
  
  import java.lang.invoke.*;
  import jdk.test.lib.process.OutputAnalyzer;
  import jdk.test.lib.process.ProcessTools;
! import sun.hotspot.WhiteBox;
  import sun.hotspot.code.Compiler;
  
  public class MemberNameLeak {
      static class Leak {
        public void callMe() {
        }
  
        public static void main(String[] args) throws Throwable {
          Leak leak = new Leak();
+         WhiteBox wb = WhiteBox.getWhiteBox();
+         int removedCountOrig =  wb.resolvedMethodRemovedCount();
+         int removedCount;
  
          for (int i = 0; i < 10; i++) {
            MethodHandles.Lookup lookup = MethodHandles.lookup();
            MethodType mt = MethodType.fromMethodDescriptorString("()V", Leak.class.getClassLoader());
            // findSpecial leaks some native mem
            MethodHandle mh = lookup.findSpecial(Leak.class, "callMe", mt, Leak.class);
            mh.invokeExact(leak);
          }
  
          System.gc();  // make mh unused
+ 
+         // Wait until ServiceThread cleans ResolvedMethod table
+         do {
+           removedCount = wb.resolvedMethodRemovedCount();
+         } while (removedCountOrig == removedCount);
        }
      }
  
      public static void test(String gc) throws Throwable {
         // Run this Leak class with logging
          ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
                                        "-Xlog:membername+table=trace",
+                                       "-XX:+WhiteBoxAPI",
+                                       "-Xbootclasspath/a:.",
                                        gc, Leak.class.getName());
          OutputAnalyzer output = new OutputAnalyzer(pb.start());
          output.shouldContain("ResolvedMethod entry added for MemberNameLeak$Leak.callMe()V");
          output.shouldContain("ResolvedMethod entry found for MemberNameLeak$Leak.callMe()V");
          output.shouldContain("ResolvedMethod entry removed");