IDEA-138382 Added inspection to report about duplicated characters in StringTokenizer's delimiters

java/java-tests/testData/inspection/stringTokenizerDelimiter/afterConstructor.java

@@ -0,0 +1,12 @@
+// "Replace StringTokenizer delimiters parameter with unique symbols" "true"
+import java.util.StringTokenizer;
+
+class A {
+
+  void m() {
+
+    new StringTokenizer("asd", "\\\t\nqwerty")
+
+  }
+
+}

java/java-tests/testData/inspection/stringTokenizerDelimiter/afterMethod.java

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+// "Replace StringTokenizer delimiters parameter with unique symbols" "true"
+import java.util.StringTokenizer;
+
+class A {
+
+  void m() {
+
+    new StringTokenizer("asd").nextToken("\nq#r")
+
+  }
+
+}

java/java-tests/testData/inspection/stringTokenizerDelimiter/beforeConstructor.java

@@ -0,0 +1,12 @@
+// "Replace StringTokenizer delimiters parameter with unique symbols" "true"
+import java.util.StringTokenizer;
+
+class A {
+
+  void m() {
+
+    new StringTokenizer("asd", "\\\t\t\n<caret>\nqwerty")
+
+  }
+
+}

java/java-tests/testData/inspection/stringTokenizerDelimiter/beforeConstructorNoDuplicates.java

@@ -0,0 +1,12 @@
+// "Replace StringTokenizer delimiters parameter with unique symbols" "false"
+import java.util.StringTokenizer;
+
+class A {
+
+  void m() {
+
+    new StringTokenizer("asd", "\\\t\nqwerty!#2@$")
+
+  }
+
+}

java/java-tests/testData/inspection/stringTokenizerDelimiter/beforeMethod.java

@@ -0,0 +1,12 @@
+// "Replace StringTokenizer delimiters parameter with unique symbols" "true"
+import java.util.StringTokenizer;
+
+class A {
+
+  void m() {
+
+    new StringTokenizer("asd").nextToken("\n\nqqq###<caret>#r")
+
+  }
+
+}