Cannot create tests because of bad logback file configuration

Issues
6

Hi Andy

Here is part of the LoggerFactory class :

public class CustomLoggerFactory {
    public static final String LOG4J_VAR_EMITTER_NAME = "emitterName";
    public static final String LOG4J_VAR_EMITTER_TYPE = "emitterType";
    public static final String LOG4J_VAR_EMITTER_VERSION = "emitterVersion";
    public static final String LOG4J_VAR_Custom_SERVICE = "emitterCodeService";
    public static final String LOG4J_CONF_HOST_NAME = "hostName";
    public static final String LOG4J_VAR_CUSTOM_MAPPING_VERSION = "customMappingVersion";
    public static final String LOG4J_VAR_COMMON_MAPPING_VERSION = "commonMappingVersion";
    public static final String LOG4J_VAR_CONTEXT_CLASS = "contextClass";
    private static final ThreadLocal<CustomLoggerContext> Custom_LOGGER_CONTEXT_THREAD_LOCAL = new ThreadLocal<CustomLoggerContext>() {
        protected CustomLoggerContext initialValue() {
            return new CustomLoggerContext();
        }
    };
(...)
    private CustomLoggerFactory() {
    }

    private static void initProperties() {
        LoggerContext context = (LoggerContext)LogManager.getContext(Thread.currentThread().getContextClassLoader(), false);
        Configuration configuration = context.getConfiguration();
        localHost = (String)configuration.getProperties().get("hostName");
        StrLookup variableResolver = configuration.getStrSubstitutor().getVariableResolver();
        log4jConfigLocation = configuration.getConfigurationSource().getLocation();
        String emitterName = getLog4JProperty(variableResolver, "emitterName");
        String emitterType = getLog4JProperty(variableResolver, "emitterType");
        String emitterVersion = getLog4JProperty(variableResolver, "emitterVersion");
        String mappingCommonVersion = getLog4JProperty(variableResolver, "commonMappingVersion");
        String mappingCustomVersion = getLog4JProperty(variableResolver, "customMappingVersion", false);
(...)

    private static String getLog4JProperty(StrLookup variableResolver, String key, boolean isMandatory) {
        String res = variableResolver.lookup(key);
        if (res == null && isMandatory) {
            throw new LoggerRuntimeException(String.format("%s is not set in the log4j2 configuration file (%s), cannot continue", key, log4jConfigLocation));
        } else {
            return res;
        }
    }
(...)

As you can see, it seems that the ‘log4jConfigLocation’ was initialized with the logback configuration file…

And then here is the logback file generated by diffblue plugin :

<configuration debug="false">
<!-- Daily rolling file appender -->
<appender name="file-logger"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>{java.io.tmpdir}/diffblue/log/cover-plugin-server.log&lt;/File&gt; &lt;rollingPolicy class=&quot;ch.qos.logback.core.rolling.TimeBasedRollingPolicy&quot;&gt; &lt;FileNamePattern&gt; {java.io.tmpdir}/diffblue/log/cover-plugin-server.%d{yyyy-MM-dd}.gz
</FileNamePattern>
</rollingPolicy>
<immediateFlush>true</immediateFlush>
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%level][%thread][%logger{16}] %message%n</pattern>
</encoder>
<!-- set level="DEBUG" or "TRACE" or "INFO" to enable more verbose output -->
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>DEBUG</level>
</filter>
</appender>
<!-- set level="DEBUG" or "TRACE" or "INFO" to enable more verbose output -->
<logger name="com.diffblue" additivity="false" level="DEBUG">
<appender-ref ref="file-logger"/>
</logger>
<!-- disable all logging that does not come from Diffblue code -->
<!-- <root level="OFF"/> -->
</configuration>

Thank you for help !

Frederic