spring-projects / spring-projects/spring-security
Illegal group reference
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- Java
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Description
java.lang.IllegalArgumentException: Illegal group reference
at java.base/java.util.regex.Matcher.appendExpandedReplacement(Matcher.java:1067)
at java.base/java.util.regex.Matcher.appendReplacement(Matcher.java:997)
at java.base/java.util.regex.Matcher.replaceFirst(Matcher.java:1407)
at java.base/java.lang.String.replaceFirst(String.java:2900)
at com.linkkou.mybatis.log.LogInterceptor.replaceFirst(LogInterceptor.java:152)
at com.linkkou.mybatis.log.LogInterceptor.getCompleteSql(LogInterceptor.java:123)
Occurs when storing encrypted data Error:
BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
// password include:
return passwordEncoder.encode(password);
Will consider $ xxx $ to be regular
This method will be called automatically： at java.base/java.util.regex.Matcher.appendExpandedReplacement(Matcher.java:1067)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with com.linkkou.mybatis.log.LogInterceptor.replaceFirst and getCompleteSql, using the reported BCryptPasswordEncoder case with a password containing '$' to reproduce the exception. Trace the replaceFirst call and verify that SQL logging completes without IllegalArgumentException while preserving the intended logged output.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- backend, security
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100