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add null check

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Looly 2024-10-25 21:47:02 +08:00
parent e52aa5183a
commit c07a7657ff
1 changed files with 5 additions and 0 deletions
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5
hutool-core/src/main/java/org/dromara/hutool/core/text/replacer/StrReplacer.java
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@ -16,6 +16,8 @@
package org.dromara.hutool.core.text.replacer;
import org.dromara.hutool.core.text.StrUtil;
import java.io.Serializable;
import java.util.function.UnaryOperator;
@ -46,6 +48,9 @@ public abstract class StrReplacer implements UnaryOperator<CharSequence>, Serial
*/
@Override
public CharSequence apply(final CharSequence str) {
if(StrUtil.isEmpty(str)){
return str;
}
final int len = str.length();
final StringBuilder builder = new StringBuilder(len);
int pos = 0;//当前位置