DataSourceUtils lets timeout exceptions through even for setReadOnly calls (revised; SPR-7226)

org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/DataSourceTransactionManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2009 the original author or authors.
+ * Copyright 2002-2010 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,6 @@ package org.springframework.jdbc.datasource;
 
 import java.sql.Connection;
 import java.sql.SQLException;
-
 import javax.sql.DataSource;
 
 import org.springframework.beans.factory.InitializingBean;
@@ -236,7 +235,7 @@ public class DataSourceTransactionManager extends AbstractPlatformTransactionMan
 			}
 		}
 
-		catch (SQLException ex) {
+		catch (Exception ex) {
 			DataSourceUtils.releaseConnection(con, this.dataSource);
 			throw new CannotCreateTransactionException("Could not open JDBC Connection for transaction", ex);
 		}

org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/DataSourceUtils.java

@@ -154,14 +154,28 @@ public abstract class DataSourceUtils {
 				}
 				con.setReadOnly(true);
 			}
-			catch (Throwable ex) {
-				if (ex instanceof SQLException && (ex.getClass().getSimpleName().contains("Timeout") ||
-						(ex.getCause() != null && ex.getCause().getClass().getSimpleName().contains("Timeout")))) {
-					// Assume it's a connection timeout that would otherwise get lost: e.g. from C3P0.
-					throw (SQLException) ex;
+			catch (SQLException ex) {
+				Throwable exToCheck = ex;
+				while (exToCheck != null) {
+					if (exToCheck.getClass().getSimpleName().contains("Timeout")) {
+						// Assume it's a connection timeout that would otherwise get lost: e.g. from JDBC 4.0
+						throw ex;
+					}
+					exToCheck = exToCheck.getCause();
 				}
-				// "read-only not supported" SQLException or UnsupportedOperationException
-				// -> ignore, it's just a hint anyway.
+				// "read-only not supported" SQLException -> ignore, it's just a hint anyway
+				logger.debug("Could not set JDBC Connection read-only", ex);
+			}
+			catch (RuntimeException ex) {
+				Throwable exToCheck = ex;
+				while (exToCheck != null) {
+					if (exToCheck.getClass().getSimpleName().contains("Timeout")) {
+						// Assume it's a connection timeout that would otherwise get lost: e.g. from Hibernate
+						throw ex;
+					}
+					exToCheck = exToCheck.getCause();
+				}
+				// "read-only not supported" UnsupportedOperationException -> ignore, it's just a hint anyway
 				logger.debug("Could not set JDBC Connection read-only", ex);
 			}
 		}