move JoinLinesTest to java-tests

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

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