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8271303: jcmd VM.cds {static, dynamic}_dump should print more info

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Reviewed-by: iklam, ccheung
This commit is contained in:
Yumin Qi 2021-09-27 21:27:00 +00:00
parent 5b660f3347
commit c4b52c7378
3 changed files with 15 additions and 6 deletions
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7
src/java.base/share/classes/jdk/internal/misc/CDS.java
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@ -254,8 +254,9 @@ public class CDS {
* called from jcmd VM.cds to dump static or dynamic shared archive
* @param isStatic true for dump static archive or false for dynnamic archive.
* @param fileName user input archive name, can be null.
* @return The archive name if successfully dumped.
*/
private static void dumpSharedArchive(boolean isStatic, String fileName) throws Exception {
private static String dumpSharedArchive(boolean isStatic, String fileName) throws Exception {
String cwd = new File("").getAbsolutePath(); // current dir used for printing message.
String currentPid = String.valueOf(ProcessHandle.current().pid());
String archiveFileName = fileName != null ? fileName :
@ -333,6 +334,8 @@ public class CDS {
throw new RuntimeException("Cannot rename temp file " + tempArchiveFileName + " to archive file" + archiveFileName);
}
// Everyting goes well, print out the file name.
System.out.println((isStatic ? "Static" : " Dynamic") + " dump to file " + cwd + File.separator + archiveFileName);
String archiveFilePath = new File(archiveFileName).getAbsolutePath();
System.out.println("The process was attached by jcmd and dumped a " + (isStatic ? "static" : "dynamic") + " archive " + archiveFilePath);
return archiveFilePath;
}
}