langtools/test/tools/javap/T4459541.java
changeset 727 cb50c1ae7bab
child 5520 86e4b9a9da40
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javap/T4459541.java	Tue Jun 03 13:26:47 2008 -0700
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4459541
+ * @summary "javap -l" shows line numbers as signed short; they should be unsigned.
+ */
+
+import java.io.*;
+
+public class T4459541 {
+    public static void main(String[] args) throws Exception {
+        new T4459541().run();
+    }
+
+    public void run() throws IOException {
+        File javaFile = writeTestFile();
+        File classFile = compileTestFile(javaFile);
+        String output = javap(classFile);
+        verify(output);
+    }
+
+    File writeTestFile() throws IOException {
+        File f = new File("Test.java");
+        out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
+        println("class Test {");
+        println("void begin(int i) {");
+        println("i++;");
+        println("i++;");
+        println("}");
+        while (line < 32750)
+            println("// " + line);
+        println("void before_32767(int i) {");
+        println("i++;");
+        println("i++;");
+        println("}");
+        while (line < 32768-4)
+            println("// " + line);
+        println("void straddle_32768(int i) {");
+        while (line < 32768+4)
+            println("i++;");
+        println("}");
+        while (line < 65520)
+            println("// " + line);
+        println("void between_32768_and_65536(int i) {");
+        println("i++;");
+        println("i++;");
+        println("}");
+        while (line < 65536-4)
+            println("// " + line);
+        println("void straddle_65536(int i) {");
+        while (line < 65536+4)
+            println("i++;");
+        println("}");
+        println("}");
+        out.close();
+        return f;
+    }
+
+    File compileTestFile(File f) {
+        int rc = com.sun.tools.javac.Main.compile(new String[] { f.getPath() });
+        if (rc != 0)
+            throw new Error("compilation failed. rc=" + rc);
+        String path = f.getPath();
+        return new File(path.substring(0, path.length() - 5) + ".class");
+    }
+
+    String javap(File f) {
+        StringWriter sw = new StringWriter();
+        PrintWriter out = new PrintWriter(sw);
+        int rc = com.sun.tools.javap.Main.run(new String[] { "-l", f.getPath() }, out);
+        if (rc != 0)
+            throw new Error("javap failed. rc=" + rc);
+        out.close();
+        return sw.toString();
+    }
+
+    void verify(String output) {
+        System.out.println(output);
+        if (output.indexOf("-") >= 0)
+            throw new Error("- found in output");
+    }
+
+    void println(String text) {
+        out.println(text);
+        line++;
+    }
+
+    PrintWriter out;
+    int line = 1;
+}