[BUG] [java] incompatible types: double cannot be converted to java.math.BigDecimal

[andreluizf]

hello i'm using version 4.2.1

my json is in the following format

and the generated code looks like this

this was an error at compile time because you can parse it year.

'incompatible types: double cannot be converted to java.math.BigDecimal'

Is there any way around this problem?

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[conet]

I'm having the same issue using 4.2.3.

[conet]

worked around this by using the following type mapping:

                            <typeMappings>
                                <typeMapping>number=java.lang.Double</typeMapping>
                            </typeMappings>

[ghobona]

The work around suggested by @conet works well. In my case, I added it to the pom.xml file as shown below.

  <build>
    <plugins>
      <plugin>
        <groupId>org.openapitools</groupId>
        <artifactId>openapi-generator-maven-plugin</artifactId>
        <version>4.2.3</version>
        <executions>
          <execution>
            <goals>
              <goal>generate</goal>
            </goals>
            <configuration>
              <inputSpec>${project.basedir}/src/main/resources/openapi.yaml</inputSpec>
              <generatorName>spring</generatorName>
              <apiPackage>org.ogc.api</apiPackage>
              <modelPackage>org.ogc.model</modelPackage>
              <supportingFilesToGenerate>ApiUtil.java</supportingFilesToGenerate>
              <configOptions>
                <delegatePattern>true</delegatePattern>
              </configOptions>
              <typeMappings>
                <typeMapping>number=java.lang.Double</typeMapping>
              </typeMappings>
            </configuration>
          </execution>
        </executions>
      </plugin>

[wing328]

Closed via #8018

Please pull the latest master to give it a try.

Thanks for the PR by @bgong-mdsol

[cgfarmer4]

Im still seeing this on latest. ALthough I guess its in the opposite direction.

incompatible types: java.math.BigDecimal cannot be converted to java.lang.Double

False flag was passing --type-mappings=BigDecimal=Double to get around the bug previously. Removing seems to have fixed it.