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8238358: Implementation of JEP 371: Hidden Classes

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Co-authored-by: Lois Foltan <lois.foltan@oracle.com>
Co-authored-by: David Holmes <david.holmes@oracle.com>
Co-authored-by: Harold Seigel <harold.seigel@oracle.com>
Co-authored-by: Serguei Spitsyn <serguei.spitsyn@oracle.com>
Co-authored-by: Alex Buckley <alex.buckley@oracle.com>
Co-authored-by: Jamsheed Mohammed C M <jamsheed.c.m@oracle.com>
Co-authored-by: Jan Lahoda <jan.lahoda@oracle.com>
Co-authored-by: Amy Lu <amy.lu@oracle.com>
Reviewed-by: alanb, cjplummer, coleenp, dholmes, dlong, forax, jlahoda, psandoz, plevart, sspitsyn, vromero
This commit is contained in:
Mandy Chung 2020-04-21 06:55:38 -07:00
parent 642041adbc
commit 7cc1371059
198 changed files with 9526 additions and 1575 deletions
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1
src/java.base/share/native/libjava/Class.c
View file

@ -61,6 +61,7 @@ static JNINativeMethod methods[] = {
{"getSigners", "()[" OBJ, (void *)&JVM_GetClassSigners},
{"setSigners", "([" OBJ ")V", (void *)&JVM_SetClassSigners},
{"isArray", "()Z", (void *)&JVM_IsArrayClass},
{"isHidden", "()Z", (void *)&JVM_IsHiddenClass},
{"isPrimitive", "()Z", (void *)&JVM_IsPrimitiveClass},
{"getModifiers", "()I", (void *)&JVM_GetClassModifiers},
{"getDeclaredFields0","(Z)[" FLD, (void *)&JVM_GetClassDeclaredFields},

60
src/java.base/share/native/libjava/ClassLoader.c
View file

@ -207,6 +207,66 @@ Java_java_lang_ClassLoader_defineClass2(JNIEnv *env,
return result;
}
JNIEXPORT jclass JNICALL
Java_java_lang_ClassLoader_defineClass0(JNIEnv *env,
jclass cls,
jobject loader,
jclass lookup,
jstring name,
jbyteArray data,
jint offset,
jint length,
jobject pd,
jboolean initialize,
jint flags,
jobject classData)
{
jbyte *body;
char *utfName;
jclass result = 0;
char buf[128];
if (data == NULL) {
JNU_ThrowNullPointerException(env, 0);
return 0;
}
/* Work around 4153825. malloc crashes on Solaris when passed a
* negative size.
*/
if (length < 0) {
JNU_ThrowArrayIndexOutOfBoundsException(env, 0);
return 0;
}
body = (jbyte *)malloc(length);
if (body == 0) {
JNU_ThrowOutOfMemoryError(env, 0);
return 0;
}
(*env)->GetByteArrayRegion(env, data, offset, length, body);
if ((*env)->ExceptionOccurred(env))
goto free_body;
if (name != NULL) {
utfName = getUTF(env, name, buf, sizeof(buf));
if (utfName == NULL) {
goto free_body;
}
fixClassname(utfName);
} else {
utfName = NULL;
}
return JVM_LookupDefineClass(env, lookup, utfName, body, length, pd, initialize, flags, classData);
free_body:
free(body);
return result;
}
/*
* Returns NULL if class not found.
*/