8030115: [parfait] warnings from b119 for...

8030115: [parfait] warnings from b119 for jdk.src.share.native.sun.tracing.dtrace: JNI exception pending
Reviewed-by: dholmes, dsamersoff, sspitsyn

src/share/native/sun/tracing/dtrace/JVM.c

@@ -144,32 +144,34 @@ static void readInterfaceAttributes(
         env, provider, &(jvm_provider->argsAttributes));
 }
 
-static void readProviderData(
+static int readProviderData(
         JNIEnv* env, jobject provider, JVM_DTraceProvider* jvm_provider) {
     jmethodID mid;
     jobjectArray probes;
     jsize i;
-    jclass clazz = (*env)->GetObjectClass(env, provider); CHECK
+    jclass clazz = (*env)->GetObjectClass(env, provider); CHECK_(0)
     mid = (*env)->GetMethodID(
-        env, clazz, "getProbes", "()[Lsun/tracing/dtrace/DTraceProbe;"); CHECK
+        env, clazz, "getProbes", "()[Lsun/tracing/dtrace/DTraceProbe;"); CHECK_(0)
     probes = (jobjectArray)(*env)->CallObjectMethod(
-        env, provider, mid); CHECK
+        env, provider, mid); CHECK_(0)
 
     // Fill JVM structure, describing provider
-    jvm_provider->probe_count = (*env)->GetArrayLength(env, probes); CHECK
+    jvm_provider->probe_count = (*env)->GetArrayLength(env, probes); CHECK_(0)
     jvm_provider->probes = (JVM_DTraceProbe*)calloc(
         jvm_provider->probe_count, sizeof(*jvm_provider->probes));
     mid = (*env)->GetMethodID(
-        env, clazz, "getProviderName", "()Ljava/lang/String;"); CHECK
+        env, clazz, "getProviderName", "()Ljava/lang/String;"); CHECK_(0)
     jvm_provider->name = (jstring)(*env)->CallObjectMethod(
-        env, provider, mid); CHECK
+        env, provider, mid); CHECK_(0)
 
-    readInterfaceAttributes(env, provider, jvm_provider); CHECK
+    readInterfaceAttributes(env, provider, jvm_provider); CHECK_(0)
 
     for (i = 0; i < jvm_provider->probe_count; ++i) {
-        jobject probe = (*env)->GetObjectArrayElement(env, probes, i); CHECK
-        readProbeData(env, probe, &jvm_provider->probes[i]); CHECK
+        jobject probe = (*env)->GetObjectArrayElement(env, probes, i); CHECK_(0)
+        readProbeData(env, probe, &jvm_provider->probes[i]); CHECK_(0)
     }
+
+    return 1;
 }
 
 /*
@@ -195,16 +197,24 @@ JNIEXPORT jlong JNICALL Java_sun_tracing_dtrace_JVM_activate0(
     jvm_providers = (JVM_DTraceProvider*)calloc(
         num_providers, sizeof(*jvm_providers));
 
-    for (i = 0; i < num_providers; ++i) {
-        JVM_DTraceProvider* p = &(jvm_providers[i]);
+    int count = 0;
+    for (; count < num_providers; ++count) {
+        JVM_DTraceProvider* p = &(jvm_providers[count]);
         jobject provider = (*env)->GetObjectArrayElement(
-            env, providers, i);
-        readProviderData(env, provider, p);
+            env, providers, count);
+        if ((*env)->ExceptionOccurred(env) ||
+            ! readProviderData(env, provider, p)) {
+            // got an error, bail out!
+            break;
+        }
     }
 
-    handle = jvm_symbols->Activate(
-        env, JVM_TRACING_DTRACE_VERSION, moduleName,
-        num_providers, jvm_providers);
+    if (count == num_providers) {
+        // all providers successfully loaded - get the handle
+        handle = jvm_symbols->Activate(
+            env, JVM_TRACING_DTRACE_VERSION, moduleName,
+            num_providers, jvm_providers);
+    }
 
     for (i = 0; i < num_providers; ++i) {
         JVM_DTraceProvider* p = &(jvm_providers[i]);