Name: laC46010 Date: 01/23/97


The test below shows that GetStringUTFLength returns length+1 as result.
Particularly it returns 1 for empty string.

To run the test, set environment variables JH (Java home) and CC (C compiler)
and run "jnirun" script.

>jnirun
Wrong length of empty string: len1=0 len2=1
Wrong length of ASCII string: len1=7 len2=8
Wrong length of non-ASCII string: len1=25 len2=26

::::::::::::::
jnirun
::::::::::::::
#!/usr/bin/csh

#setenv JH /export/ld32/dest/jdk1.1beta3/solaris
#setenv CC /export/ld4/set/dist/sparc-S2/SC4.2/bin/cc

$JH/bin/javac -d . *.java
$CC -KPIC -G -I$JH/include -I$JH/include/solaris -o libtest.so *.c
setenv LD_LIBRARY_PATH ".:$LD_LIBRARY_PATH"
setenv CLASSPATH .
$JH/bin/java javasoft.sqe.tests.vm.gsul.gsul.gsul00101

::::::::::::::
gsul00101.c
::::::::::::::
/* File: %Z%%M% %I% %E%
   Copyright %G% Sun Microsystems, Inc. All Rights Reserved
*/

#include <stdio.h>
#include "native.h"

#ifdef __cplusplus
extern "C" {
#endif

#ifdef __cplusplus
#define JNI_ENV_ARG(x,y) y
#define JNI_ENV_PTR(x) x
#else
#define JNI_ENV_ARG(x,y) x,y
#define JNI_ENV_PTR(x) (*x)
#endif

JNIEXPORT jint JNICALL
Java_javasoft_sqe_tests_vm_gsul_gsul_gsul00101_gsul00101lenJava
(JNIEnv *env, jobject obj, jstring val) {
const jbyte* larr;
jboolean IsCopy;
int i;
int rlen = JNI_ENV_PTR(env) -> GetStringUTFLength(JNI_ENV_ARG(env, val));
/* printf("Real len %d \n",rlen);
larr = JNI_ENV_PTR(env) -> GetStringUTFChars(JNI_ENV_ARG(env, val), &IsCopy);
printf("Bytes in Array from String:");
for (i=0;i < rlen;i++) {
printf(" %x",*(larr+i)&0xff);
}
printf("\n");
*/
return rlen;
}

/* Temporary is commented because NewStringUTF works not correct

JNIEXPORT jboolean JNICALL
Java_javasoft_sqe_tests_vm_gsul001_gsul00101_gsul00101_gsul00101lenNative
(JNIEnv *env, jobject obj, jstring val, jsize len) {
jboolean IsCopy;
jchar* larr = JNI_ENV_PTR(env) -> GetStringUTFChars(JNI_ENV_ARG(env, val),&IsCopy);
jstring lstr = JNI_ENV_PTR(env) -> NewStringUTF(JNI_ENV_ARG(env, larr), len);
return ((JNI_ENV_PTR(env) -> GetStringUTFLength(JNI_ENV_ARG(env, lstr)) != len)?JNI_FALSE:JNI_TRUE);
}

*/
#ifdef __cplusplus
}
#endif
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gsul00101.java
::::::::::::::
//File: %Z%%M% %I% %E%
//Copyright %G% Sun Microsystems, Inc. All Rights Reserved

package javasoft.sqe.tests.vm.gsul.gsul;
import java.io.PrintStream;


public class gsul00101 {

  public static void main(String argv[])
  {
     System.exit(run() + 95/*STATUS_TEMP*/);
  }

  public native int gsul00101lenJava(String val);

  static {
    System.loadLibrary("test");
  }
    
  public static int run() {
    gsul00101 tob = new gsul00101();
    String lstr1 = new String("");
    String lstr2 = new String("ZYXWVUT");
    String lstr3 = new String("Z\u0000Y\u0080X\u06efW\u07ffV\u0800U\u5555T\uFFFFS");
    int reslen;
    int res = 0;
    try {
      reslen = tob.gsul00101lenJava(lstr1);
      if (lstr1.length() != reslen) {
        System.out.println("Wrong length of empty string: len1=" + lstr1.length() + " len2=" + reslen);
        res = 2 /*STATUS_FAILED*/;
      }
      reslen = tob.gsul00101lenJava(lstr2);
      if (lstr2.length() != reslen) {
        System.out.println("Wrong length of ASCII string: len1=" + lstr2.length() + " len2=" + reslen);
        res = 2 /*STATUS_FAILED*/;
      }
      reslen = tob.gsul00101lenJava(lstr3);
      if (25 != reslen) {
        System.out.println("Wrong length of non-ASCII string: len1=25 len2=" + reslen);
        res = 2 /*STATUS_FAILED*/;
      }
    } catch (Throwable e) {
      res = 2;
      System.out.println("Exception caught: " + e.getMessage() + ": " + e);
    }
  return res;
  }
}

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