### Question:
AgentMain { static boolean isJavaVersionSupported(String version, String vmName, @Nullable String vmVersion) { int major; if (version.startsWith("1.")) { major = Character.digit(version.charAt(2), 10); } else { String majorAsString = version.split("\\.")[0]; int indexOfDash = majorAsString.indexOf('-'); if (indexOfDash > 0) { majorAsString = majorAsString.substring(0, indexOfDash); } major = Integer.parseInt(majorAsString); } boolean isHotSpot = vmName.contains("HotSpot(TM)") || vmName.contains("OpenJDK"); boolean isIbmJ9 = vmName.contains("IBM J9"); if (major < 7) { return false; } if (isHotSpot) { return isHotSpotVersionSupported(version, major); } else if (isIbmJ9) { return isIbmJ9VersionSupported(vmVersion, major); } return true; }  static void premain(String agentArguments, Instrumentation instrumentation); @SuppressWarnings("unused") static void agentmain(String agentArguments, Instrumentation instrumentation); synchronized static void init(String agentArguments, Instrumentation instrumentation, boolean premain);  }### Answer:
@Test void testIbmJava8SupportedAfterBuild2_8() { assertThat(AgentMain.isJavaVersionSupported("1.8.0", "IBM J9 VM", "2.8")).isFalse(); assertThat(AgentMain.isJavaVersionSupported("1.8.0", "IBM J9 VM", "2.9")).isTrue(); }