add license info & add testcase

src/main/java/com/alibaba/druid/pool/DruidDataSourceStatLoggerAdapter.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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 com.alibaba.druid.pool;
 
 import java.util.Properties;

src/main/java/com/alibaba/druid/pool/ValidConnectionCheckerAdapter.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed 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 com.alibaba.druid.pool;
 
 import java.sql.Connection;

src/main/java/com/alibaba/druid/sql/ast/expr/SQLCastExpr.java

@@ -36,6 +36,9 @@ public class SQLCastExpr extends SQLExprImpl {
     }
 
     public void setExpr(SQLExpr expr) {
+        if (expr != null) {
+            expr.setParent(this);
+        }
         this.expr = expr;
     }
 

src/main/java/com/alibaba/druid/wall/spi/WallVisitorUtils.java

@@ -57,6 +57,7 @@ import com.alibaba.druid.sql.ast.statement.SQLDropViewStatement;
 import com.alibaba.druid.sql.ast.statement.SQLExprTableSource;
 import com.alibaba.druid.sql.ast.statement.SQLInsertInto;
 import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
+import com.alibaba.druid.sql.ast.statement.SQLInsertStatement.ValuesClause;
 import com.alibaba.druid.sql.ast.statement.SQLJoinTableSource;
 import com.alibaba.druid.sql.ast.statement.SQLRollbackStatement;
 import com.alibaba.druid.sql.ast.statement.SQLSelect;
@@ -971,7 +972,7 @@ public class WallVisitorUtils {
                 }
             }
 
-            if (isWhereOrHaving(x)) {
+            if (!(x.getParent() instanceof ValuesClause)) {
                 addViolation(visitor, ErrorCode.FUNCTION_DENY, "deny function : " + methodName, x);
             }
         }