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8235359: Simplify method Class.getRecordComponents()

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Change getRecordComponents0() to return an array of RecordComponent's so no conversion is needed

Reviewed-by: lfoltan, chegar, fparain, vromero, mchung
This commit is contained in:
Harold Seigel 2019-12-06 13:05:25 +00:00
parent 7eadf5b372
commit b8dbdd1232
2 changed files with 8 additions and 10 deletions
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13
src/java.base/share/classes/java/lang/Class.java
View File

@ -2315,15 +2315,11 @@ public final class Class<T> implements java.io.Serializable,
if (isPrimitive() || isArray()) {
return new RecordComponent[0];
}
Object[] recordComponents = getRecordComponents0();
if (recordComponents == null || recordComponents.length == 0) {
RecordComponent[] recordComponents = getRecordComponents0();
if (recordComponents == null) {
return new RecordComponent[0];
}
RecordComponent[] result = new RecordComponent[recordComponents.length];
for (int i = 0; i < recordComponents.length; i++) {
result[i] = (RecordComponent)recordComponents[i];
}
return result;
return recordComponents;
}
/**
@ -3483,7 +3479,8 @@ public final class Class<T> implements java.io.Serializable,
private native Method[] getDeclaredMethods0(boolean publicOnly);
private native Constructor<T>[] getDeclaredConstructors0(boolean publicOnly);
private native Class<?>[] getDeclaredClasses0();
private native Object[] getRecordComponents0();
@SuppressWarnings("preview")
private native RecordComponent[] getRecordComponents0();
private native boolean isRecord0();
/**

5
src/java.base/share/native/libjava/Class.c
View File

@ -51,6 +51,7 @@ extern jboolean VerifyFixClassname(char *utf_name);
#define CTR "Ljava/lang/reflect/Constructor;"
#define PD "Ljava/security/ProtectionDomain;"
#define BA "[B"
#define RC "Ljava/lang/reflect/RecordComponent;"
static JNINativeMethod methods[] = {
{"initClassName", "()" STR, (void *)&JVM_InitClassName},
@ -77,8 +78,8 @@ static JNINativeMethod methods[] = {
{"getRawTypeAnnotations", "()" BA, (void *)&JVM_GetClassTypeAnnotations},
{"getNestHost0", "()" CLS, (void *)&JVM_GetNestHost},
{"getNestMembers0", "()[" CLS, (void *)&JVM_GetNestMembers},
{"getRecordComponents0", "()[" OBJ, (void *)&JVM_GetRecordComponents},
{"isRecord0", "()Z", (void *)&JVM_IsRecord},
{"getRecordComponents0", "()[" RC, (void *)&JVM_GetRecordComponents},
{"isRecord0", "()Z", (void *)&JVM_IsRecord},
};
#undef OBJ