#vulnerable code 
                                @Test
    public void closesClaims() throws Exception {
        final AtomicBoolean done = new AtomicBoolean();
        final Project raw = new FkProject();
        final Spin spin = new Spin(
            raw,
            Collections.singletonList((pkt, xml) -> done.set(true)),
            Executors.newSingleThreadExecutor(new VerboseThreads())
        );
        final RvProject project = new RvProject(raw, spin);
        try (final Claims claims = new Claims(project).lock()) {
            claims.add(new ClaimOut().type("hello").token("tt"));
        }
        spin.close();
        try (final Claims claims = new Claims(project).lock()) {
            MatcherAssert.assertThat(
                claims.iterate(),
                Matchers.hasSize(0)
            );
        }
        MatcherAssert.assertThat(done.get(), Matchers.is(true));
    } 
                            #location 13 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                @Test
    public void closesClaims() throws Exception {
        final AtomicBoolean done = new AtomicBoolean();
        final Project raw = new FkProject();
        final Flush flush = new Flush(
            raw,
            Collections.singletonList((pkt, xml) -> done.set(true)),
            Executors.newSingleThreadExecutor(new VerboseThreads())
        );
        final RvProject project = new RvProject(raw, flush);
        try (final Claims claims = new Claims(project).lock()) {
            claims.add(new ClaimOut().type("hello").token("tt"));
        }
        flush.close();
        try (final Claims claims = new Claims(project).lock()) {
            MatcherAssert.assertThat(
                claims.iterate(),
                Matchers.hasSize(0)
            );
        }
        MatcherAssert.assertThat(done.get(), Matchers.is(true));
    }