mxsm commented on code in PR #6672:
URL: https://github.com/apache/rocketmq/pull/6672#discussion_r1187558061
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common/src/main/java/org/apache/rocketmq/common/UtilAll.java:
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@@ -69,12 +68,25 @@ public class UtilAll {
HEX_ARRAY = "0123456789ABCDEF".toCharArray();
Supplier<Integer> supplier = () -> {
// format: "pid@hostname"
- String currentJVM = ManagementFactory.getRuntimeMXBean().getName();
try {
- return Integer.parseInt(currentJVM.substring(0,
currentJVM.indexOf('@')));
- } catch (Exception e) {
- return -1;
+ final Class<?> managementFactoryClass =
Class.forName("java.lang.management.ManagementFactory");
+ final Method getRuntimeMXBean =
managementFactoryClass.getDeclaredMethod("getRuntimeMXBean");
+ final Class<?> runtimeMXBeanClass =
Class.forName("java.lang.management.RuntimeMXBean");
+ final Method getName =
runtimeMXBeanClass.getDeclaredMethod("getName");
+
+ final Object runtimeMXBean = getRuntimeMXBean.invoke(null);
+ final String name = (String) getName.invoke(runtimeMXBean);
+
+ return Integer.parseInt(name.split("@")[0]);
+ } catch (final Exception ex) {
+ try {
+ // try a Linux-specific way
+ return Integer.parseInt(new
File("/proc/self").getCanonicalFile().getName());
+ } catch (final IOException ignoredUseDefault) {
Review Comment:
Catching Exception might be better, I will modify it and resubmit again
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