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    <p>Running the below code with the parameters reveals that both methods m3 is inlined first. i used the following parameters for jvm: <code>-XX:+UnlockDiagnosticVMOptions -XX:+PrintInlining</code>. Apparenly the method who's first execution count reaches the inlining threshold is inlined first. In our case m3. So for the hotspot i used for testing is down-top as <code>m3</code> is first executed and the <code>m2</code> execution ends.</p> <p>Code was run with jdk7_u40 with TieredCompilation disabled, server mode on windows 8 box. Output of the command was:</p> <pre><code> @ 66 java.lang.String::indexOfSupplementary (71 bytes) too big @ 21 methodTest::m3 (31 bytes) inline (hot) @ 11 methodTest::m2 (35 bytes) inline (hot) @ 21 methodTest::m3 (31 bytes) inline (hot) @ 14 methodTest::m1 (25 bytes) inline (hot) @ 11 methodTest::m2 (35 bytes) inline (hot) @ 21 methodTest::m3 (31 bytes) inline (hot) </code></pre> <p><code>m1</code> is <code>25 bytes</code> in size, <code>m2</code> is <code>35 bytes</code> and <code>m3</code> has <code>31 bytes</code>.</p> <pre><code>public class methodTest { public static void main(String[] args) { doTest(); } int i = 0; int j = 0; int k = 0; private static void doTest() { methodTest m = new methodTest(); for (int i = 0; i &lt; 1000000000; i++) { m.m1(); } System.out.println(m.i); System.out.println(m.j); System.out.println(m.k); } private void m1() { i++; m2(); j++; } private void m2() { i++; i++; m3(); j++; } private void m3() { i++; j++; k++; } } </code></pre>
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    1. POHotSpot JIT inlining strategy: top-down or down-top
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    1. COIt turns out that only initial method size is taken into account? Because `m2` is still inlined after `m3`. So, inlining order doesn't matter?
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    2. COApparently it doesn't. It seem to take into account the size of the bytecode for that method. I just double checked the .class file and those indeed are the sizes of the bytecode for the methods.
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    3. CO@leventov if you look at http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html you can see the explanation for MaxInlineSize parameter.
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