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fix potential NPE in Bootstrap. #1995

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XenoAmess
2021-12-03 14:59:30 +08:00
committed by hengyunabc
parent 1983f84361
commit 2030c39c93
1 changed files with 9 additions and 5 deletions
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boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
+9 -5
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@@ -698,11 +698,15 @@ public class Bootstrap {
}
result.append("Remote versions:\n");
List<String> remoteVersions = DownloadUtils.readRemoteVersions();
Collections.reverse(remoteVersions);
for (String version : remoteVersions) {
result.append(" ").append(version).append('\n');
}
List<String> remoteVersions = DownloadUtils.readRemoteVersions();
if (remoteVersions != null) {
Collections.reverse(remoteVersions);
for (String version : remoteVersions) {
result.append(" " + version).append('\n');
}
} else {
result.append(" unknown\n");
}
return result.toString();
}