BAEL-5001: Fix typo in C3P0 (#10886)

Co-authored-by: Krzysztof Woyke <krzysztof.woyke.sp@lhsystems.com>

persistence-modules/core-java-persistence/src/main/java/com/baeldung/connectionpool/C3p0DataSource.java

@@ -5,7 +5,7 @@ import java.beans.PropertyVetoException;
 import java.sql.Connection;
 import java.sql.SQLException;
 
-public class C3poDataSource {
+public class C3p0DataSource {
 
     private static final ComboPooledDataSource cpds = new ComboPooledDataSource();
 
@@ -24,5 +24,5 @@ public class C3poDataSource {
         return cpds.getConnection();
     }
     
-    private C3poDataSource(){}
+    private C3p0DataSource(){}
 }

persistence-modules/core-java-persistence/src/test/java/com/baeldung/connectionpool/C3p0DataSourceUnitTest.java

@@ -0,0 +1,13 @@
+package com.baeldung.connectionpool;
+
+import java.sql.SQLException;
+import static org.junit.Assert.assertTrue;
+import org.junit.Test;
+
+public class C3p0DataSourceUnitTest {
+    
+    @Test
+    public void givenC3p0DataSourceClass_whenCallGetConnection_thenCorrect() throws SQLException {
+        assertTrue(C3p0DataSource.getConnection().isValid(1));
+    }   
+}

persistence-modules/core-java-persistence/src/test/java/com/baeldung/connectionpool/C3poDataSourceUnitTest.java

@@ -1,13 +0,0 @@
-package com.baeldung.connectionpool;
-
-import java.sql.SQLException;
-import static org.junit.Assert.assertTrue;
-import org.junit.Test;
-
-public class C3poDataSourceUnitTest {
-    
-    @Test
-    public void givenC3poDataSourceClass_whenCalledgetConnection_thenCorrect() throws SQLException {
-        assertTrue(C3poDataSource.getConnection().isValid(1));
-    }   
-}