move JoinLinesTest to java-tests

java/java-tests/testData/codeInsight/joinLines/SubsequentJoiningAndUnexpectedTextRemoval.java

@@ -0,0 +1,7 @@
+public class BrokenAlignment {
+
+    public BrokenAlignment(String errorMessage) {
+        <caret>if (StringUtils
+                .contains(errorMessage, "'UK_ACCOUNT_USERNAME'")
+    }
+}