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Report more diagnostics when JDK8PlatformImplementations can't be cast to base type

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#EA-120914 - CCE: PlatformImplementationsKt.<clinit>
This commit is contained in:
Ilya Gorbunov
2018-07-05 19:40:41 +03:00
parent 35beb9698e
commit b7d3382f13
1 changed files with 15 additions and 4 deletions
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libraries/stdlib/jvm/src/kotlin/internal/PlatformImplementations.kt
+15 -4
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@@ -25,25 +25,36 @@ internal val IMPLEMENTATIONS: PlatformImplementations = run {
val version = getJavaVersion()
if (version >= 0x10008) {
try {
return@run Class.forName("kotlin.internal.jdk8.JDK8PlatformImplementations").newInstance() as PlatformImplementations
return@run castToBaseType<PlatformImplementations>(Class.forName("kotlin.internal.jdk8.JDK8PlatformImplementations").newInstance())
} catch (e: ClassNotFoundException) { }
try {
return@run Class.forName("kotlin.internal.JRE8PlatformImplementations").newInstance() as PlatformImplementations
return@run castToBaseType<PlatformImplementations>(Class.forName("kotlin.internal.JRE8PlatformImplementations").newInstance())
} catch (e: ClassNotFoundException) { }
}
if (version >= 0x10007) {
try {
return@run Class.forName("kotlin.internal.jdk7.JDK7PlatformImplementations").newInstance() as PlatformImplementations
return@run castToBaseType<PlatformImplementations>(Class.forName("kotlin.internal.jdk7.JDK7PlatformImplementations").newInstance())
} catch (e: ClassNotFoundException) { }
try {
return@run Class.forName("kotlin.internal.JRE7PlatformImplementations").newInstance() as PlatformImplementations
return@run castToBaseType<PlatformImplementations>(Class.forName("kotlin.internal.JRE7PlatformImplementations").newInstance())
} catch (e: ClassNotFoundException) { }
}
PlatformImplementations()
}
@kotlin.internal.InlineOnly
private inline fun <reified T : Any> castToBaseType(instance: Any): T {
try {
return instance as T
} catch (e: ClassCastException) {
val instanceCL = instance.javaClass.classLoader
val baseTypeCL = T::class.java.classLoader
throw ClassCastException("Instance classloader: $instanceCL, base type classloader: $baseTypeCL").initCause(e)
}
}
private fun getJavaVersion(): Int {
val default = 0x10006
val version = System.getProperty("java.specification.version") ?: return default