Aias00 opened a new issue, #10808:
URL: https://github.com/apache/rocketmq/issues/10808
### Problem
`ProxyConfig.parseDelayLevel()` parses `messageDelayLevel` with `split("
")`. If the configuration contains leading spaces, repeated spaces, tabs, or
line breaks, the parser emits empty or combined tokens, throws, and leaves
`delayLevelTable` partially populated or empty.
```java
String[] levelArray = levelString.split(" ");
for (int i = 0; i < levelArray.length; i++) {
String value = levelArray[i];
...
}
```
`messageDelayLevel` is a user-facing configuration and should tolerate
ordinary whitespace formatting, especially in config files.
### Impact
Malformed whitespace can make delayed-message level computation incomplete
in Proxy. In the worst case, a blank/whitespace-only value leaves the table
empty and later `computeDelayLevel()` can fail when reading the last level.
### Expected behavior
Proxy should trim the config and split by `\s+`, ignore blank input safely,
and keep valid delay levels when the same values are formatted with extra
whitespace.
### Code evidence
- `proxy/src/main/java/org/apache/rocketmq/proxy/config/ProxyConfig.java`
### Suggested fix
Use whitespace-normalized parsing in `parseDelayLevel()` and add
`ProxyConfig` tests for repeated whitespace / blank input.
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