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Goooler merged 1 commit into from
Jul 15, 2026
+41 −0
Merged

Test relocation of ModuleMainClass in module-info #2109

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41 changes: 41 additions & 0 deletions src/test/kotlin/com/github/jengelman/gradle/plugins/shadow/internal/BytecodeRemappingTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -22,9 +22,11 @@ import org.junit.jupiter.params.provider.ValueSource
import org.vafer.jdeb.shaded.objectweb.asm.AnnotationVisitor
import org.vafer.jdeb.shaded.objectweb.asm.ClassReader
import org.vafer.jdeb.shaded.objectweb.asm.ClassVisitor
import org.vafer.jdeb.shaded.objectweb.asm.ClassWriter
import org.vafer.jdeb.shaded.objectweb.asm.FieldVisitor
import org.vafer.jdeb.shaded.objectweb.asm.Label
import org.vafer.jdeb.shaded.objectweb.asm.MethodVisitor
import org.vafer.jdeb.shaded.objectweb.asm.ModuleVisitor
import org.vafer.jdeb.shaded.objectweb.asm.Opcodes

/**
Expand Down Expand Up @@ -221,6 +223,45 @@ class BytecodeRemappingTest {
)
}

@Test
fun moduleMainClassIsRelocated() {
val originalMainClass =
$$"com/github/jengelman/gradle/plugins/shadow/internal/BytecodeRemappingTest$FixtureBase"
val writer = ClassWriter(0)
writer.visit(Opcodes.V9, Opcodes.ACC_MODULE, "module-info", null, null, null)
writer.visitModule("example.module", 0, null).apply { visitMainClass(originalMainClass) }
writer.visitEnd()
val file =
tempDir.resolve("module-info.class").toFile().apply { writeBytes(writer.toByteArray()) }
val details =
object : FileCopyDetails by noOpDelegate() {
override fun getPath(): String = file.name

override fun getFile(): File = file
}

val result = details.remapClass(relocators)
var remappedMainClass: String? = null
ClassReader(result)
.accept(
object : ClassVisitor(Opcodes.ASM9) {
override fun visitModule(
name: String,
access: Int,
version: String?,
): ModuleVisitor =
object : ModuleVisitor(Opcodes.ASM9) {
override fun visitMainClass(mainClass: String) {
remappedMainClass = mainClass
}
}
},
0,
)

assertThat(remappedMainClass).isEqualTo(relocatedFixtureBase)
}

@Test
fun localVariableIsRelocated() {
val result = fixtureSubjectDetails.remapClass(relocators)
Expand Down