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[GenAI] Improve coverage for org.mockito:mockito-core:5.0.0 using gpt-5.5 (#8586)
* Checkpoint for coverage improvement of org.mockito:mockito-core:5.0.0 * Preserve failed automation work for issue #3997 * Add automation logs for issue #3997 * Update generated library support for org.mockito:mockito-core:5.0.0 * Clear resume helper artifacts * Improve coverage for org.mockito:mockito-core:5.0.0 * Preserve failed automation work for issue #3997 * Record recovered Mockito token metrics * Clear resume helper artifacts
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‎metadata/org.mockito/mockito-core/5.0.0/reachability-metadata.json‎

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},
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"type" : "com.sun.tools.attach.VirtualMachine"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "com.sun.tools.javac.api.JavacTool"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator"
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},
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"type" : "java.lang.CharSequence"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "java.lang.Class",
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"methods" : [
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{
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"name" : "getModule",
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"parameterTypes" : [ ]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.ModuleHandler$ModuleSystemFound"
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},
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"type" : "java.lang.Comparable"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "java.lang.Module",
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"methods" : [
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{
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"name" : "canRead",
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"parameterTypes" : [
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"java.lang.Module"
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]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.ModuleHandler$ModuleSystemFound"
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.StackWalkerChecker"
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},
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"type" : "java.lang.StackWalker",
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"methods" : [
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{
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"name" : "getInstance",
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"parameterTypes" : [
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"java.lang.StackWalker$Option"
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]
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},
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{
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"name" : "walk",
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"parameterTypes" : [
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"java.util.function.Function"
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]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.debugging.Java9PlusLocationImpl"
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},
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"type" : "java.lang.StackWalker"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.StackWalkerChecker"
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},
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"type" : "java.lang.StackWalker$Option"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.debugging.Java9PlusLocationImpl"
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},
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"type" : "java.lang.StackWalker$Option"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.StackWalkerChecker"
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},
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"type" : "java.lang.StackWalker$StackFrame",
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"methods" : [
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{
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"name" : "getDeclaringClass",
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"parameterTypes" : [ ]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.debugging.Java9PlusLocationImpl"
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},
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"type" : "java.lang.String[]"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "java.lang.System",
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"methods" : [
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{
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"name" : "getSecurityManager",
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"parameterTypes" : [ ]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator"
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "javax.tools.ToolProvider",
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"methods" : [
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{
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"name" : "getSystemJavaCompiler",
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"parameterTypes" : [ ]
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.util.KotlinInlineClassUtil"
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},
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"type" : "kotlin.jvm.JvmInline"
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "net.bytebuddy.agent.Installer",
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"methods" : [
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{
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"name" : "getInstrumentation",
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"parameterTypes" : [ ]
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}
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]
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},
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"condition" : {
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"typeReached" : "org.mockito.internal.util.reflection.InstrumentationMemberAccessor"
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.util.MockUtil"
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},
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"type" : "org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker",
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"methods" : [
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{
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"name" : "<init>",
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"parameterTypes" : [ ]
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}
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]
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},
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"typeReached" : "org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator"
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}
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]
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},
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{
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"type" : "sun.instrument.InstrumentationImpl",
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"jniAccessible" : true,
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"methods" : [
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{
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"name" : "<init>",
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"parameterTypes" : [
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"long",
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"boolean",
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"boolean",
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"boolean"
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]
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},
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{
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"name" : "loadClassAndCallAgentmain",
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"parameterTypes" : [
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"java.lang.String",
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"java.lang.String"
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]
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},
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{
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"name" : "loadClassAndCallPremain",
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"parameterTypes" : [
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"java.lang.String",
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"java.lang.String"
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]
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},
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{
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"name" : "transform",
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"parameterTypes" : [
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"java.lang.Module",
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"java.lang.ClassLoader",
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"java.lang.String",
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"java.lang.Class",
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"java.security.ProtectionDomain",
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"byte[]",
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"boolean"
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]
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}
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]
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},
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"condition" : {
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"typeReached" : "org.mockito.internal.exceptions.stacktrace.StackTraceFilter"
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}
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]
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},
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{
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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},
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"type" : "sun.security.provider.NativePRNG",
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"methods" : [
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"name" : "<init>",
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"parameterTypes" : [
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"java.security.SecureRandomParameters"
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]
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}
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"condition" : {
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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"type" : "sun.security.provider.SHA",
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"methods" : [
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}
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"typeReached" : "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker"
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"type" : {
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"proxy" : [
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}
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"typeReached" : "org.mockito.internal.runners.DefaultInternalRunner$1"
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]
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}
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"condition" : {
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"typeReached" : "org.mockito.internal.configuration.DefaultDoNotMockEnforcer"
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"type" : {
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"proxy" : [
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}
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},
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"glob" : "mockito-extensions/org.mockito.plugins.MemberAccessor"
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"typeReached" : "org.mockito.internal.configuration.plugins.PluginInitializer"
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"typeReached" : "org.mockito.internal.configuration.plugins.PluginInitializer"

‎post-gen-interventions/org.mockito_mockito-core_5.0.0.md‎

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# Post-generation intervention report
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Library: org.mockito:mockito-core:5.0.0
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Stage: metadata_fix_failed
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## Summary
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The native test failure was caused by the generated `InlineDelegateByteBuddyMockMakerTest`, specifically `inlineMockMakerReportsInitializationFailureWhenDispatcherResourceCannotBeRead()`. The failing native run threw `ClassNotFoundException: org.mockito.Mockito` from the test's child-first `URLClassLoader` before it could exercise a missing reachability metadata path.
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This is not a metadata-related failure. The test deliberately reloads Mockito and Byte Buddy through a custom runtime class loader and then attempts to exercise Mockito's inline Byte Buddy mock maker. Runtime class loading and Byte Buddy-backed inline mocking are unsupported native-image behavior for this workflow, so preserving the test by adding more metadata would not be appropriate.
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## Action taken
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Removed the generated test file:
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- `tests/src/org.mockito/mockito-core/5.0.0/src/test/java/org_mockito/mockito_core/InlineDelegateByteBuddyMockMakerTest.java`
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No metadata files were modified as part of this intervention.
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## Why the remaining generated support should be preserved
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The remaining generated Mockito tests pass in both JVM and native execution after removing only the unsupported inline/class-loader test. They still cover valid native-image-compatible Mockito paths, including interface proxy mocking, plugin initialization through `mockito-extensions`, member accessor reflection, runner-based initialization, captors, spies with supported failure handling, and Java 8 default return behavior.
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These passing tests continue to justify the generated support and metadata because they exercise supported reflection, proxy, resource-loading, and Mockito extension paths without relying on runtime bytecode generation, custom redefinition, Java agent self-attach, or Byte Buddy inline mock-maker behavior.
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## Verification
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Ran:
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```text
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./gradlew test -Pcoordinates=org.mockito:mockito-core:5.0.0 --stacktrace
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```
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Result: build passed; native test reported 11 successful tests and 0 failures.

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