andreacavalli/netty5
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

First load RuntimeException to prevent segfault on error

Browse Source 
Motivation:

When an error happens during loading the native library it may try to generate a new RuntimeException before the RuntimeException is loaded.

Modifications:

- Load RuntimeException as first

Result:

No more segfaults possible
This commit is contained in:
Norman Maurer 2015-03-13 13:25:11 +01:00
parent 44615f6cb2
commit c7827dc16a
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
transport-native-epoll/src/main/c/io_netty_channel_epoll_Native.c
View File

@ -351,6 +351,18 @@ jint JNI_OnLoad(JavaVM* vm, void* reserved) {
if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_6) != JNI_OK) {
return JNI_ERR;
} else {
jclass localRuntimeExceptionClass = (*env)->FindClass(env, "java/lang/RuntimeException");
if (localRuntimeExceptionClass == NULL) {
// pending exception...
return JNI_ERR;
}
runtimeExceptionClass = (jclass) (*env)->NewGlobalRef(env, localRuntimeExceptionClass);
if (runtimeExceptionClass == NULL) {
// out-of-memory!
throwOutOfMemoryError(env);
return JNI_ERR;
}
jclass localNetUtilClass = (*env)->FindClass(env, "io/netty/util/NetUtil" );
if (localNetUtilClass == NULL) {
// pending exception...
@ -386,17 +398,6 @@ jint JNI_OnLoad(JavaVM* vm, void* reserved) {
throwRuntimeException(env, "failed to get method ID: ClosedChannelException.<init>()");
return JNI_ERR;
}
jclass localRuntimeExceptionClass = (*env)->FindClass(env, "java/lang/RuntimeException");
if (localRuntimeExceptionClass == NULL) {
// pending exception...
return JNI_ERR;
}
runtimeExceptionClass = (jclass) (*env)->NewGlobalRef(env, localRuntimeExceptionClass);
if (runtimeExceptionClass == NULL) {
// out-of-memory!
throwOutOfMemoryError(env);
return JNI_ERR;
}
jclass localIoExceptionClass = (*env)->FindClass(env, "java/io/IOException");
if (localIoExceptionClass == NULL) {