Thanks [~rishisolankii] for the details. Here is the patch for the issue.
> Enforce noninstantiability to SqlJdbcUtil class
> -----------------------------------------------
>
> Key: OFBIZ-7715
> URL:
https://issues.apache.org/jira/browse/OFBIZ-7715> Project: OFBiz
> Issue Type: Sub-task
> Components: framework
> Affects Versions: Trunk
> Reporter: Rishi Solanki
> Assignee: Rohit Koushal
> Priority: Minor
> Attachments: OFBIZ-7715.patch
>
>
> - Make class as final.
> - Add a private constructor.
> - Make the following public static variables as private
> {code}
> public static final int CHAR_BUFFER_SIZE = 4096;
> {code}
> - Make the following protected variable as private and move it and static block to top of class.
> {code}
> protected static Map<String, Integer> fieldTypeMap = new HashMap<String, Integer>();
> static {
> fieldTypeMap.put("java.lang.String", 1);
> fieldTypeMap.put("String", 1);
> fieldTypeMap.put("java.sql.Timestamp", 2);
> fieldTypeMap.put("Timestamp", 2);
> fieldTypeMap.put("java.sql.Time", 3);
> fieldTypeMap.put("Time", 3);
> fieldTypeMap.put("java.sql.Date", 4);
> fieldTypeMap.put("Date", 4);
> fieldTypeMap.put("java.lang.Integer", 5);
> fieldTypeMap.put("Integer", 5);
> fieldTypeMap.put("java.lang.Long", 6);
> fieldTypeMap.put("Long", 6);
> fieldTypeMap.put("java.lang.Float", 7);
> fieldTypeMap.put("Float", 7);
> fieldTypeMap.put("java.lang.Double", 8);
> fieldTypeMap.put("Double", 8);
> fieldTypeMap.put("java.math.BigDecimal", 9);
> fieldTypeMap.put("BigDecimal", 9);
> fieldTypeMap.put("java.lang.Boolean", 10);
> fieldTypeMap.put("Boolean", 10);
> fieldTypeMap.put("java.lang.Object", 11);
> fieldTypeMap.put("Object", 11);
> fieldTypeMap.put("java.sql.Blob", 12);
> fieldTypeMap.put("Blob", 12);
> fieldTypeMap.put("byte[]", 12);
> fieldTypeMap.put("java.nio.ByteBuffer", 12);
> fieldTypeMap.put("java.nio.HeapByteBuffer", 12);
> fieldTypeMap.put("java.sql.Clob", 13);
> fieldTypeMap.put("Clob", 13);
> fieldTypeMap.put("java.util.Date", 14);
> // all of these treated as Collection
> fieldTypeMap.put("java.util.ArrayList", 15);
> fieldTypeMap.put("java.util.HashSet", 15);
> fieldTypeMap.put("java.util.LinkedHashSet", 15);
> fieldTypeMap.put("java.util.LinkedList", 15);
> }
> {code}