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/*
* Copyright (c) 2003, 2024, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdio.h>
#include <string.h>
#include "jvmti.h"
#include "agent_common.hpp"
#include "JVMTITools.hpp"
extern "C" {
#define PASSED 0
#define STATUS_FAILED 2
typedef struct {
const char *name;
const char *sig;
} meth_info;
typedef struct {
const char *name;
jint mcount;
meth_info *meths;
} class_info;
static jvmtiEnv *jvmti = nullptr;
static jint result = PASSED;
static jboolean printdump = JNI_FALSE;
static meth_info m0[] = {
{ "<init>", "(Lnsk/jvmti/GetClassMethods/getclmthd007;)V" },
{ "meth_1", "(Ljava/lang/String;)V" }
};
static meth_info m1[] = {
{ "meth_n1", "()V" },
{ "meth_def1", "()V" }
};
static meth_info m2[] = {
{ "<init>", "()V" },
{ "meth_n1", "()V" },
{ "meth_n2", "()I" },
{ "<clinit>", "()V" }
};
static meth_info m3[] = {
{ "<init>", "()V" }
};
static meth_info m4[] = {
{ "<init>", "()V" },
{ "meth_o2", "()V" }
};
static meth_info m5[] = {
{ "<init>", "()V" },
{ "meth_o3", "()I" }
};
static meth_info m6[] = {
{ "meth_i1", "()I" }
};
static meth_info m7[] = {
{ "meth_i2", "()I" }
};
static meth_info m8[] = {
{ "<init>", "()V" },
{ "meth_i2", "()I" }
};
static meth_info m9[] = {
{ "<init>", "()V" },
{ "meth_i1", "()I" }
};
static class_info classes[] = {
{ "InnerClass1", 2, m0 },
{ "InnerInterface", 2, m1 },
{ "InnerClass2", 4, m2 },
{ "OuterClass1", 1, m3 },
{ "OuterClass2", 2, m4 },
{ "OuterClass3", 2, m5 },
{ "OuterInterface1", 1, m6 },
{ "OuterInterface2", 1, m7 },
{ "OuterClass4", 2, m8 },
{ "OuterClass5", 2, m9 }
};
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_getclmthd007(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_getclmthd007(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_getclmthd007(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jint res;
if (options != nullptr && strcmp(options, "printdump") == 0) {
printdump = JNI_TRUE;
}
res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
if (res != JNI_OK || jvmti == nullptr) {
printf("Wrong result of a valid call to GetEnv!\n");
return JNI_ERR;
}
return JNI_OK;
}
JNIEXPORT void JNICALL
Java_nsk_jvmti_GetClassMethods_getclmthd007_check(JNIEnv *env,
jclass cls, jint i, jclass clazz) {
jvmtiError err;
jint mcount;
jmethodID *methods;
char *name, *sig, *generic;
int j, k;
int failed = JNI_FALSE; // enable debugging on failure
if (jvmti == nullptr) {
printf("JVMTI client was not properly loaded!\n");
result = STATUS_FAILED;
return;
}
if (printdump == JNI_TRUE) {
printf(">>> %s:\n", classes[i].name);
}
err = jvmti->GetClassMethods(clazz, &mcount, &methods);
if (err != JVMTI_ERROR_NONE) {
printf("(GetClassMethods#%d) unexpected error: %s (%d)\n",
i, TranslateError(err), err);
result = STATUS_FAILED;
return;
}
if (mcount != classes[i].mcount) {
printf("(%d) wrong number of methods: %d, expected: %d\n",
i, mcount, classes[i].mcount);
result = STATUS_FAILED;
failed = JNI_TRUE; // show the methods found
printf(">>> %s:\n", classes[i].name);
}
for (k = 0; k < mcount; k++) {
if (methods[k] == nullptr) {
printf("(%d:%d) methodID = null\n", i, k);
result = STATUS_FAILED;
} else if (printdump == JNI_TRUE || failed == JNI_TRUE) {
err = jvmti->GetMethodName(methods[k],
&name, &sig, &generic);
if (err == JVMTI_ERROR_NONE) {
printf(">>> [%d]: %s%s\n", k, name, sig);
}
}
}
for (j = 0; j < classes[i].mcount; j++) {
/* search the returned table for each expected entry */
for (k = 0; k < mcount; k++) {
if (methods[k] != nullptr) {
err = jvmti->GetMethodName(methods[k],
&name, &sig, &generic);
if (err != JVMTI_ERROR_NONE) {
printf("(GetMethodName#%d:%d) unexpected error: %s (%d)\n",
i, k, TranslateError(err), err);
result = STATUS_FAILED;
} else {
if (name != nullptr && sig != nullptr &&
strcmp(name, classes[i].meths[j].name) == 0 &&
strcmp(sig, classes[i].meths[j].sig) == 0) break;
}
}
}
if (k == mcount) {
printf("(%d:%d) method not found: \"%s%s\"", i, j,
classes[i].meths[j].name, classes[i].meths[j].sig);
result = STATUS_FAILED;
}
}
}
JNIEXPORT int JNICALL
Java_nsk_jvmti_GetClassMethods_getclmthd007_getRes(JNIEnv *env, jclass cls) {
return result;
}
}
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