moving tests to CE

java/java-tests/testData/inspection/dataFlow/nullableField/expected.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<problems>
+  <problem>
+    <file>Test.java</file>
+    <line>6</line>
+    <description>'s.equals(s)' may produce NullPointerException</description>
+  </problem>
+</problems>
+

java/java-tests/testData/inspection/dataFlow/nullableField/src/Test.java

@@ -0,0 +1,8 @@
+public class Test {
+  public String s;
+
+  public void foo() {
+     s = null;
+     boolean b = s.equals(s);
+  }
+}