Corrected behavior for static fields

Author: volivan239

utbot-framework/src/main/kotlin/org/utbot/framework/codegen/model/util/ClassIdUtil.kt

@@ -37,10 +37,10 @@ infix fun ClassId.isAccessibleFrom(packageName: String): Boolean {
  * Returns field of [this], such that [methodId] is a getter for it (or null if methodId doesn't represent a getter)
  */
 internal fun ClassId.fieldThisIsGetterFor(methodId: MethodId): FieldId? =
-    allDeclaredFieldIds.firstOrNull { it.getter == methodId }
+    allDeclaredFieldIds.firstOrNull { !it.isStatic && it.getter == methodId }
 
 /**
  * Returns field of [this], such that [methodId] is a setter for it (or null if methodId doesn't represent a setter)
  */
 internal fun ClassId.fieldThisIsSetterFor(methodId: MethodId): FieldId? =
-    allDeclaredFieldIds.firstOrNull { it.setter == methodId }
+    allDeclaredFieldIds.firstOrNull { !it.isStatic && it.setter == methodId }

utbot-framework/src/main/kotlin/org/utbot/framework/codegen/model/util/FieldIdUtil.kt

@@ -15,7 +15,7 @@ import org.utbot.framework.plugin.api.util.voidClassId
  */
 // TODO: change parameter from packageName: String to context: CgContext in ClassId.isAccessibleFrom and ExecutableId.isAccessibleFrom ?
 internal infix fun FieldId.isAccessibleFrom(context: CgContext): Boolean {
-    if (context.codegenLanguage == CodegenLanguage.KOTLIN) {
+    if (!isStatic && context.codegenLanguage == CodegenLanguage.KOTLIN) {
         // Here we call field accessible iff its getter is accessible, checks for setter are made in FieldId.canBeSetIn
         return declaringClass.allMethods.contains(getter) && getter.isAccessibleFrom(context.testClassPackageName)
     }
@@ -31,7 +31,7 @@ internal infix fun FieldId.isAccessibleFrom(context: CgContext): Boolean {
  * Whether or not a field can be set without reflection
  */
 internal fun FieldId.canBeSetIn(context: CgContext): Boolean {
-    if (context.codegenLanguage == CodegenLanguage.KOTLIN) {
+    if (!isStatic && context.codegenLanguage == CodegenLanguage.KOTLIN) {
         return declaringClass.allMethods.contains(setter) && setter.isAccessibleFrom(context.testClassPackageName)
     }
     return isAccessibleFrom(context) && !isFinal

utbot-sample/src/main/java/org/utbot/examples/annotations/ClassWithRefField.java

@@ -21,7 +21,7 @@ public static void setStaticBoxedInt(@NotNull Integer staticBoxedInt) {
     }
 
     @SuppressWarnings("NullableProblems")
-    public Integer getBoxedInt() {
+    public @NotNull Integer getBoxedInt() {
         return boxedInt;
     }
 }