RecordInstantiator.java

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package com.ancientprogramming.fixedformat4j.format.impl;
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import com.ancientprogramming.fixedformat4j.exception.FixedFormatException;
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import java.lang.reflect.Constructor;
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import static java.lang.String.format;
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/**
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 * Creates instances of {@code @Record}-annotated classes via reflection,
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 * including support for static nested classes and non-static inner classes.
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 *
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 * @author Jacob von Eyben - <a href="https://eybenconsult.com">https://eybenconsult.com</a>
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 * @since 1.6.0
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 */
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class RecordInstantiator {
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  <T> T instantiate(Class<T> fixedFormatRecordClass) {
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    try {
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      Constructor<T> constructor = fixedFormatRecordClass.getDeclaredConstructor();
21 1 1. instantiate : replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiate → KILLED
 
      return constructor.newInstance();
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    } catch (NoSuchMethodException e) {
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      Class<?> declaringClass = fixedFormatRecordClass.getDeclaringClass();
24 1 1. instantiate : negated conditional → KILLED
 
      if (declaringClass != null) {
25 1 1. instantiate : replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiate → KILLED
 
        return instantiateInnerClass(fixedFormatRecordClass, declaringClass, e);
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      }
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      throw new FixedFormatException(format(
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          "%s is missing a default constructor which is nessesary to be loaded through %s",
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          fixedFormatRecordClass.getName(), getClass().getName()));
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    } catch (Exception e) {
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      throw new FixedFormatException(format("unable to create instance of %s", fixedFormatRecordClass.getName()), e);
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    }
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  }
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  private <T> T instantiateInnerClass(Class<T> innerClass, Class<?> declaringClass, Exception outerException) {
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    Object declaringClassInstance;
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    try {
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      Constructor<?> declaringClassConstructor = declaringClass.getDeclaredConstructor();
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      declaringClassInstance = declaringClassConstructor.newInstance();
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    } catch (NoSuchMethodException dex) {
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      throw new FixedFormatException(format(
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          "Trying to create instance of innerclass %s, but the declaring class %s is missing a default constructor which is nessesary to be loaded through %s",
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          innerClass.getName(), declaringClass.getName(), getClass().getName()));
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    } catch (Exception de) {
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      throw new FixedFormatException(format(
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          "unable to create instance of declaring class %s, which is needed to instansiate %s",
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          declaringClass.getName(), innerClass.getName()), outerException);
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    }
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    try {
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      Constructor<T> constructor = innerClass.getDeclaredConstructor(declaringClass);
52 1 1. instantiateInnerClass : replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiateInnerClass → KILLED
 
      return constructor.newInstance(declaringClassInstance);
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    } catch (NoSuchMethodException ex) {
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      throw new FixedFormatException(format(
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          "%s is missing a default constructor which is nessesary to be loaded through %s",
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          innerClass.getName(), getClass().getName()));
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    } catch (Exception ex) {
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      throw new FixedFormatException(format("unable to create instance of %s", innerClass.getName()), outerException);
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    }
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  }
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}

Mutations

21

1.1
Location : instantiate
Killed by : com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator.[engine:junit-jupiter]/[class:com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator]/[method:instantiate_plainClass_returnsNewInstance()] replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiate → KILLED

24

1.1
Location : instantiate
Killed by : com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator.[engine:junit-jupiter]/[class:com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator]/[method:instantiate_innerClass_returnsNewInstance()] negated conditional → KILLED

25

1.1
Location : instantiate
Killed by : com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator.[engine:junit-jupiter]/[class:com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator]/[method:instantiate_innerClass_returnsNewInstance()] replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiate → KILLED

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1.1
Location : instantiateInnerClass
Killed by : com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator.[engine:junit-jupiter]/[class:com.ancientprogramming.fixedformat4j.format.impl.TestRecordInstantiator]/[method:instantiate_innerClass_returnsNewInstance()] replaced return value with null for com/ancientprogramming/fixedformat4j/format/impl/RecordInstantiator::instantiateInnerClass → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.1