StringBuffer -> StringBuilder

Author: thurka

visualvm/appui/src/org/graalvm/visualvm/modules/appui/AboutAction.java

@@ -108,7 +108,7 @@ private String getLogfile() {
 
     private String getDetails() {
         if (details == null) {
-            StringBuffer sb = new StringBuffer();
+            StringBuilder sb = new StringBuilder();
 
             sb.append("<table border=\"0\">"); // NOI18N
 

visualvm/attach/src/org/graalvm/visualvm/attach/AttachModelImpl.java

@@ -219,7 +219,7 @@ private synchronized String executeJCmd(String command) {
     }
 
     private String readToEOF(InputStream in) throws IOException {
-        StringBuffer buffer = new StringBuffer(1024);
+        StringBuilder buffer = new StringBuilder(1024);
         byte b[] = new byte[256];
         int n;
 

visualvm/coredump/src/org/graalvm/visualvm/coredump/impl/OverviewViewSupport.java

@@ -199,7 +199,7 @@ private void initComponents(String jvmargs) {
         private String formatJVMArgs(String jvmargs) {
             String mangledString = " ".concat(jvmargs).replace(" -","\n");  // NOI18N
             StringTokenizer tok = new StringTokenizer(mangledString,"\n");  // NOI18N
-            StringBuffer text = new StringBuffer(100);
+            StringBuilder text = new StringBuilder(100);
 
             while(tok.hasMoreTokens()) {
                 String arg = tok.nextToken().replace(" "," "); // NOI18N
@@ -254,7 +254,7 @@ private void initComponents(Properties properties) {
         }
 
         private String formatSystemProperties(Properties properties) {
-            StringBuffer text = new StringBuffer(200);
+            StringBuilder text = new StringBuilder(200);
             List<Object> keys = new ArrayList<>();
             Enumeration<?> en = properties.propertyNames();
             Iterator<Object> keyIt;

visualvm/libs.profiler/lib.profiler/src/org/graalvm/visualvm/lib/jfluid/results/jdbc/SQLParser.java

@@ -62,7 +62,7 @@ class SQLParser {
     private final StringCache strings;
 
     SQLParser() {
-        StringBuffer pattern = new StringBuffer();
+        StringBuilder pattern = new StringBuilder();
 
         for (int i =0; i < commands.length; i+=2) {
             pattern.append("(^\\b");    // NOI18N

visualvm/libs.profiler/lib.profiler/src/org/graalvm/visualvm/lib/jfluid/server/ProfilerCalibrator.java

@@ -161,7 +161,7 @@ public static void main(String[] args) {
             double m2 = (((double) status.methodEntryExitCallTime[2]) * 1000000) / cntsInSec; // Ditto
             double m4 = (((double) status.methodEntryExitCallTime[4]) * 1000000) / cntsInSec; // Ditto
 
-            StringBuffer s = new StringBuffer();
+            StringBuilder s = new StringBuilder();
             s.append(MessageFormat.format(CALIBRATION_RESULTS_MSG,
                                           new Object[] { nf.format(m0), nf.format(m1), nf.format(m2), nf.format(m4) }));