MNEMONIC-499: The refBreak function should be prevented from reclaimable referred durable object
diff --git a/mnemonic-core/src/main/java/org/apache/mnemonic/AnnotatedDurableEntityClass.java b/mnemonic-core/src/main/java/org/apache/mnemonic/AnnotatedDurableEntityClass.java
index 5bc877a..be5763d 100644
--- a/mnemonic-core/src/main/java/org/apache/mnemonic/AnnotatedDurableEntityClass.java
+++ b/mnemonic-core/src/main/java/org/apache/mnemonic/AnnotatedDurableEntityClass.java
@@ -865,6 +865,10 @@
case "refbreak":
for (FieldInfo fldinfo : m_dynfieldsinfo.values()) {
if (fldinfo.refbreak && !isUnboxPrimitive(fldinfo.type)) {
+ code.beginControlFlow("if ($1N != null && $1N.autoReclaim())", fldinfo.name);
+ code.addStatement(
+ "throw new ReferenceBreakingException(\"Not be able to break reference if it is reclaimable.\")");
+ code.endControlFlow();
code.addStatement("$1N = null", fldinfo.name);
}
}
diff --git a/mnemonic-core/src/main/java/org/apache/mnemonic/ReferenceBreakingException.java b/mnemonic-core/src/main/java/org/apache/mnemonic/ReferenceBreakingException.java
new file mode 100644
index 0000000..fca3de2
--- /dev/null
+++ b/mnemonic-core/src/main/java/org/apache/mnemonic/ReferenceBreakingException.java
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.mnemonic;
+
+/**
+ * this Exception will be thrown once cache pool has been out of space.
+ *
+ */
+public class ReferenceBreakingException extends RuntimeException {
+
+ /**
+ * accept a exception message to describe specific condition.
+ *
+ * @param message
+ * exception message
+ */
+ public ReferenceBreakingException(String message) {
+ super(message);
+ }
+}
