src/java.base/share/native/libjava/ClassLoader.c

rev 58565 : 8238358: Implementation of JEP 371: Hidden Classes
Reviewed-by: duke
Contributed-by: mandy.chung@oracle.com, lois.foltan@oracle.com, david.holmes@oracle.com, harold.seigel@oracle.com, serguei.spitsyn@oracle.com, alex.buckley@oracle.com, jamsheed.c.m@oracle.com

*** 205,214 ****
--- 205,274 ----
          free(utfName);
  
      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.
   */
  JNIEXPORT jclass JNICALL
  Java_java_lang_ClassLoader_findBootstrapClass(JNIEnv *env, jobject loader,