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From Soks86 <michael.chrostow...@gmail.com>
Subject Null Pointer Exception on Malformed <foreach>
Date Mon, 14 Dec 2009 19:06:44 GMT

Hi, 

I was using <foreach> in an <insert> (within a <mapper>) statement and I
got
the following NPE: 

Caused by: java.lang.NullPointerException
	at java.util.regex.Pattern.<init>(Pattern.java:1132)
	at java.util.regex.Pattern.compile(Pattern.java:823)
	at java.lang.String.replaceFirst(String.java:2146)
	at
org.apache.ibatis.builder.xml.dynamic.ForEachSqlNode$FilteredDynamicContext$1.handleToken(ForEachSqlNode.java:116)
	at
org.apache.ibatis.parsing.GenericTokenParser.parse(GenericTokenParser.java:29)
	at
org.apache.ibatis.builder.xml.dynamic.ForEachSqlNode$FilteredDynamicContext.appendSql(ForEachSqlNode.java:121)
	at
org.apache.ibatis.builder.xml.dynamic.TextSqlNode.apply(TextSqlNode.java:18)
	at
org.apache.ibatis.builder.xml.dynamic.MixedSqlNode.apply(MixedSqlNode.java:14)
	at
org.apache.ibatis.builder.xml.dynamic.ForEachSqlNode.apply(ForEachSqlNode.java:51)
	at
org.apache.ibatis.builder.xml.dynamic.MixedSqlNode.apply(MixedSqlNode.java:14)
	at
org.apache.ibatis.builder.xml.dynamic.DynamicSqlSource.getBoundSql(DynamicSqlSource.java:22)
	at
org.apache.ibatis.mapping.MappedStatement.getBoundSql(MappedStatement.java:198)
	at
org.apache.ibatis.executor.statement.BaseStatementHandler.<init>(BaseStatementHandler.java:45)
	at
org.apache.ibatis.executor.statement.PreparedStatementHandler.<init>(PreparedStatementHandler.java:16)
	at
org.apache.ibatis.executor.statement.RoutingStatementHandler.<init>(RoutingStatementHandler.java:27)
	at
org.apache.ibatis.session.Configuration.newStatementHandler(Configuration.java:192)
	at
org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:27)
	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:65)
	at
org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:39)
	at
org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:93)
	... 26 more

This occurred when I didn't specify the item field in my <foreach> tag. Once
I specify item="something" then the NPE goes away. Changing the statement
within the <foreach> did not seem to effect this. Bug? 
-- 
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