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test/hotspot/jtreg/runtime/cds/appcds/TestCommon.java
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@@ -660,6 +660,26 @@
}
Files.createSymbolicLink(linkedJar.toPath(), origJar.toPath());
}
return linkedJar;
}
+
+ // Remove all UL log messages from a JVM's STDOUT (such as those printed by -Xlog:cds)
+ static Pattern logPattern = Pattern.compile("^\\[[0-9. ]*s\\].*");
+ public static String filterOutLogs(String stdout) {
+ StringBuilder sb = new StringBuilder();
+ String prefix = "";
+ for (String line : stdout.split("\n")) {
+ if (logPattern.matcher(line).matches()) {
+ continue;
+ }
+ sb.append(prefix);
+ sb.append(line);
+ prefix = "\n";
+ }
+ if (stdout.endsWith("\n")) {
+ // String.split("A\n") returns {"A"}, not {"A", ""}.
+ sb.append("\n");
+ }
+ return sb.toString();
+ }
}
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