Bug 572393 - cleaned up warnings in test code

Change-Id: I108bbcf2aac3471041b274af188a3ef2cc076aec
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.core/+/179581
Tested-by: JDT Bot <jdt-bot@eclipse.org>
diff --git a/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/CompletionTests2.java b/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/CompletionTests2.java
index e342ca3..fae985c 100644
--- a/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/CompletionTests2.java
+++ b/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/model/CompletionTests2.java
@@ -279,14 +279,14 @@
 		File dest = getWorkspaceRoot().getLocation().toFile();
 		File pro = createDirectory(dest, "P1");
 
-		this.createFile(pro, ".classpath", "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+		createFile(pro, ".classpath", "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
 			"<classpath>\n" +
 			"    <classpathentry kind=\"src\" path=\"src\"/>\n" +
 			"    <classpathentry kind=\"var\" path=\"JCL_LIB\" sourcepath=\"JCL_SRC\" rootpath=\"JCL_SRCROOT\"/>\n" +
 			"    <classpathentry kind=\"output\" path=\"bin\"/>\n" +
 			"</classpath>");
 
-		this.createFile(pro, ".project",
+		createFile(pro, ".project",
 			"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
 			"<projectDescription>\n" +
 			"	<name>org.eclipse.jdt.core</name>\n" +
@@ -309,7 +309,7 @@
 
 		File pz = createDirectory(src, "pz");
 
-		this.createFile(pz, "ZZZ.java",
+		createFile(pz, "ZZZ.java",
 			"package pz;\n" +
 			"public class ZZZ {\n" +
 			"}");
@@ -404,14 +404,14 @@
 		File dest = getWorkspaceRoot().getLocation().toFile();
 		File pro = createDirectory(dest, "P1");
 
-		this.createFile(pro, ".classpath", "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+		createFile(pro, ".classpath", "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
 			"<classpath>\n" +
 			"    <classpathentry kind=\"src\" path=\"src\"/>\n" +
 			"    <classpathentry kind=\"var\" path=\"JCL_LIB\" sourcepath=\"JCL_SRC\" rootpath=\"JCL_SRCROOT\"/>\n" +
 			"    <classpathentry kind=\"output\" path=\"bin\"/>\n" +
 			"</classpath>");
 
-		this.createFile(pro, ".project",
+		createFile(pro, ".project",
 			"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
 			"<projectDescription>\n" +
 			"	<name>org.eclipse.jdt.core</name>\n" +
@@ -434,7 +434,7 @@
 
 		File pz = createDirectory(src, "pz");
 
-		this.createFile(pz, "ZZZ.java",
+		createFile(pz, "ZZZ.java",
 			"package pz;\n" +
 			"public class ZZZ {\n" +
 			"}");