Merge pull request #93 from janaganh/strbuilder

changed StringBuffer to StringBuilder  - BugBash

Author: tsurdilo

diagram/src/main/java/io/serverlessworkflow/diagram/model/ModelConnection.java

@@ -31,7 +31,7 @@ public ModelConnection(String left, String right, String desc) {
 
     @Override
     public String toString() {
-        StringBuffer retBuff = new StringBuffer();
+        StringBuilder retBuff = new StringBuilder();
         retBuff.append(System.lineSeparator());
         retBuff.append(left.equals(WorkflowDiagramUtils.wfStart) ? WorkflowDiagramUtils.startEnd : left);
         retBuff.append(WorkflowDiagramUtils.connection);

diagram/src/main/java/io/serverlessworkflow/diagram/model/ModelState.java

@@ -37,7 +37,7 @@ public void addInfo(String info) {
 
     @Override
     public String toString() {
-        StringBuffer retBuff = new StringBuffer();
+        StringBuilder retBuff = new StringBuilder();
         retBuff.append(System.lineSeparator());
         for(String info : stateInfo) {
             retBuff.append(noSpaceName).append(WorkflowDiagramUtils.description)

diagram/src/main/java/io/serverlessworkflow/diagram/model/WorkflowDiagramModel.java

@@ -49,7 +49,7 @@ private void inspect(Workflow workflow) {
         // title
         setTitle(workflow.getName());
         if (workflow.getVersion() != null && workflow.getVersion().trim().length() > 0) {
-            StringBuffer titleBuf = new StringBuffer()
+            StringBuilder titleBuf = new StringBuilder()
                     .append(workflow.getName())
                     .append(WorkflowDiagramUtils.versionSeparator)
                     .append(workflow.getVersion());
@@ -58,7 +58,7 @@ private void inspect(Workflow workflow) {
 
         // legend
         if (workflow.getDescription() != null && workflow.getDescription().trim().length() > 0) {
-            StringBuffer legendBuff = new StringBuffer()
+            StringBuilder legendBuff = new StringBuilder()
                     .append(WorkflowDiagramUtils.legendStart)
                     .append(workflow.getDescription())
                     .append(WorkflowDiagramUtils.legendEnd);