@JacksonXmlText can't get content value

[yujinlong912]

When read XML file by Jackson V3, i can't get content value which marked by @JacksonXmlText.
The XML content like this.

<?xml version="1.0" encoding="UTF-8" ?>
<root>
  <common>
    <building_id>320400A010</building_id>
    <gateway_id>02</gateway_id>
    <type>report</type>
  </common>
  <data operation="report">
    <sequence>38134</sequence>
    <parser>yes</parser>
    <time>20260108134000</time>
    <meter id="001" addr="000000000005" com="1" tp="01" name="first">
      <function id="01" sml="Ep+" sid="1" ut="KWh" pm="FEP" coding="01000" error="192">17029.10000</function>
      <function id="02" sml="ΣP" sid="2" ut="KW" pm="P" coding="01000" error="192">0.10000</function>
      <function id="05" sml="Ua" sid="5" ut="V" pm="UA" coding="01000" error="192">235.00000</function>
      <function id="06" sml="Ub" sid="6" ut="V" pm="UB" coding="01000" error="192">236.10000</function>
      <function id="07" sml="Uc" sid="7" ut="V" pm="UC" coding="01000" error="192">235.60000</function>
    </meter>
  </data>
</root>

The POJO like this.

@Data
@JsonPropertyOrder({"id", "sml", "sid", "ut", "pm", "coding", "error", "value"})
public class XmlFunctionInfo {
    @JacksonXmlProperty(localName = "id", isAttribute = true)
    private String id;

    @JacksonXmlProperty(localName = "sml", isAttribute = true)
    private String sml;
    
    @JacksonXmlProperty(localName = "sid", isAttribute = true)
    private String sid;
    
    @JacksonXmlProperty(localName = "ut", isAttribute = true)
    private String ut;
    
    @JacksonXmlProperty(localName = "pm", isAttribute = true)
    private String pm;
    
    @JacksonXmlProperty(localName = "coding", isAttribute = true)
    private String coding;
    
    @JacksonXmlProperty(localName = "error", isAttribute = true)
    private Integer error;
    
    @JacksonXmlText
    private Float value;

}

[cowtowncoder]

Couple of notes:

1. I think @Data implies use of a framework like Lombok -- we'd need a test without external dependencies (de-lombokified version)
2. For troubleshooting we would need full reproduction -- issue has most of the things, but needs to include calling code, configuration for XmlMapper.
3. (optional) If possible, it'd be great to have simplified reproduction assuming not all fields are actually relevant.

[yujinlong912]

I found it's may be caused by springboot4.
I write same code in different project, the code in java project works well, but the code in springboot4 project cause a exception.
The exception is: Could not find creator property with name ''

Codes:
pom.xml

	<modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>4.0.2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <java.version>17</java.version>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </path>
                    </annotationProcessorPaths>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>

        <dependency>
            <groupId>tools.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
            <version>3.0.3</version>
        </dependency>

    </dependencies>

SpringBootApplication

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import tools.jackson.dataformat.xml.XmlMapper;

@SpringBootApplication
public class JacksonApplication {

    public static void main(String[] args) {
        test();
        SpringApplication.run(JacksonApplication.class, args);
    }

    public static void test(){
        final XmlMapper mapper = new XmlMapper();
        //region xml str
        final String xml =
                """
                  <?xml version="1.0" encoding="UTF-8" ?>
                  <root>
                    <common>
                      <building_id>320400A010</building_id>
                      <gateway_id>02</gateway_id>
                      <type>report</type>
                    </common>
                    <data operation="report">
                      <sequence>38134</sequence>
                      <parser>yes</parser>
                      <time>20260108134000</time>
                      <meter id="001" addr="000000000005" com="1" tp="01" name="1号变压器">
                        <function id="01" sml="Ep+" sid="1" ut="KWh" pm="正向有功" coding="01000" error="192">17029.10000</function>
                        <function id="02" sml="ΣP" sid="2" ut="KW" pm="有功功率" coding="01000" error="192">0.10000</function>
                        <function id="05" sml="Ua" sid="5" ut="V" pm="A相电压" coding="01000" error="192">235.00000</function>
                        <function id="06" sml="Ub" sid="6" ut="V" pm="B相电压" coding="01000" error="192">236.10000</function>
                        <function id="07" sml="Uc" sid="7" ut="V" pm="C相电压" coding="01000" error="192">235.60000</function>
                      </meter>
                    </data>
                  </root>
                  """;
        //endregion

        XmlAckData data = mapper.readValue(xml, XmlAckData.class);

        System.out.println(data);
    }
}

XmlAckData POJO

import com.fasterxml.jackson.annotation.JsonRootName;
import lombok.Data;

@Data
@JsonRootName( value = "root")
public class XmlAckData {
    private XmlCommon common;

    private XmlDataInfo data;

    public XmlAckData() { }

    public XmlAckData(XmlCommon common, XmlDataInfo data) {
        this.common = common;
        this.data = data;
    }
}

XmlCommon POJO

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import lombok.Data;
import tools.jackson.dataformat.xml.annotation.JacksonXmlProperty;


@Data
@JsonPropertyOrder({"buildingId", "gatewayId", "type"})
public class XmlCommon {
    @JacksonXmlProperty(localName = "building_id")
    private String buildingId;

    @JacksonXmlProperty(localName = "gateway_id")
    private String gatewayId;

    @JacksonXmlProperty(localName = "type")
    private String type;

    public XmlCommon() {
    }

    public XmlCommon(String buildingId, String gatewayId, String type) {
        this.buildingId = buildingId;
        this.gatewayId = gatewayId;
        this.type = type;
    }
}

XmlDataInfo POJO

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import lombok.Data;
import tools.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
import tools.jackson.dataformat.xml.annotation.JacksonXmlProperty;

import java.util.List;

@Data
@JsonPropertyOrder({"sequence", "parser", "time", "total", "current", "meters"})
public class XmlDataInfo {
    @JacksonXmlProperty(localName = "operation", isAttribute = true)
    private String operation;

    @JacksonXmlProperty(localName = "sequence")
    private String sequence;

    @JacksonXmlProperty(localName = "parser")
    private String parser;

    @JacksonXmlProperty(localName = "time")
    private String time;

    @JacksonXmlProperty(localName = "total")
    private String total;

    @JacksonXmlProperty(localName = "current")
    private String current;

    @JacksonXmlElementWrapper(useWrapping = false)
    @JacksonXmlProperty(localName = "meter")
    private List<XmlMeterInfo> meters;

    public XmlDataInfo() {
    }

    public XmlDataInfo(String operation) {
        this.operation = operation;
    }

    public XmlDataInfo(String operation, List<XmlMeterInfo> meters) {
        this.operation = operation;
        this.meters = meters;
    }
}

XmlMeterInfo POJO

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import lombok.Data;
import tools.jackson.dataformat.xml.annotation.JacksonXmlElementWrapper;
import tools.jackson.dataformat.xml.annotation.JacksonXmlProperty;

import java.util.List;

@Data
@JsonPropertyOrder({"id", "addr", "com", "tp", "name", "functions"})
public class XmlMeterInfo {
    @JacksonXmlProperty(localName = "id",   isAttribute = true)
    private String id;

    @JacksonXmlProperty(localName = "addr", isAttribute = true)
    private String addr;

    @JacksonXmlProperty(localName = "com",  isAttribute = true)
    private Integer com;

    @JacksonXmlProperty(localName = "tp",   isAttribute = true)
    private String tp;

    @JacksonXmlProperty(localName = "name", isAttribute = true)
    private String name;

    @JacksonXmlElementWrapper(useWrapping = false)
    @JacksonXmlProperty(localName = "function")
    private List<XmlFunctionInfo> functions;

    public XmlMeterInfo() {
    }

    public XmlMeterInfo(String id, String addr, Integer com, String tp, String name) {
        this.id   = id;
        this.addr = addr;
        this.com  = com;
        this.tp   = tp;
        this.name = name;
    }
}

XmlFunctionInfo POJO

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import lombok.Data;
import tools.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import tools.jackson.dataformat.xml.annotation.JacksonXmlText;

@Data
@JsonPropertyOrder({"id", "sml", "sid", "ut", "pm", "coding", "error", "value"})
public class XmlFunctionInfo {

    @JacksonXmlProperty(localName = "id", isAttribute = true)
    private String id;

    @JacksonXmlProperty(localName = "sml", isAttribute = true)
    private String sml;

    @JacksonXmlProperty(localName = "sid", isAttribute = true)
    private String sid;

    @JacksonXmlProperty(localName = "ut", isAttribute = true)
    private String ut;

    @JacksonXmlProperty(localName = "pm", isAttribute = true)
    private String pm;


    @JacksonXmlProperty(localName = "coding", isAttribute = true)
    private String coding;


    @JacksonXmlProperty(localName = "error", isAttribute = true)
    private Integer error;


    @JacksonXmlText
    private Float value;

    public XmlFunctionInfo() { }

    public XmlFunctionInfo(String id, String sml, String sid, String ut, String pm, String coding, Integer error, Float value) {
        this.id     = id;
        this.sml    = sml;
        this.sid    = sid;
        this.ut     = ut;
        this.pm     = pm;
        this.coding = coding;
        this.error  = error;
        this.value  = value;
    }
}