# HG changeset patch
# User sspitsyn
# Date 1497395989 25200
# Node ID d7709f2d4bd36bf4de3f485d936cbe581a82d2ec
# Parent  921359dbc96bfd00a3134617d2882b3559d32a96
8178054: [TESTBUG] Need test for JVM TI IsModifiableModule
Summary: Add new test hotspot/test/serviceability/jvmti/GetNamedModule
Reviewed-by: alanb, iignatyev

diff -r 921359dbc96b -r d7709f2d4bd3 make/test/JtregNative.gmk
--- a/make/test/JtregNative.gmk	Wed Jun 07 18:57:35 2017 -0700
+++ b/make/test/JtregNative.gmk	Tue Jun 13 16:19:49 2017 -0700
@@ -56,6 +56,7 @@
     $(HOTSPOT_TOPDIR)/test/compiler/floatingpoint/ \
     $(HOTSPOT_TOPDIR)/test/compiler/calls \
     $(HOTSPOT_TOPDIR)/test/serviceability/jvmti/GetNamedModule \
+    $(HOTSPOT_TOPDIR)/test/serviceability/jvmti/IsModifiableModule \
     $(HOTSPOT_TOPDIR)/test/serviceability/jvmti/AddModuleReads \
     $(HOTSPOT_TOPDIR)/test/serviceability/jvmti/AddModuleExportsAndOpens \
     $(HOTSPOT_TOPDIR)/test/serviceability/jvmti/AddModuleUsesAndProvides \
@@ -85,6 +86,7 @@
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_liboverflow := -lc
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libSimpleClassFileLoadHook := -lc
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libGetNamedModuleTest := -lc
+    BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libIsModifiableModuleTest := -lc
     BUILD_HOTSPOT_JTREG_LIBRARIES_LDFLAGS_libAddModuleReadsTest := -lc
     BUILD_HOTSPOT_JTREG_LIBRARIES_LDFLAGS_libAddModuleExportsAndOpensTest := -lc
     BUILD_HOTSPOT_JTREG_LIBRARIES_LDFLAGS_libAddModuleUsesAndProvidesTest := -lc
diff -r 921359dbc96b -r d7709f2d4bd3 test/serviceability/jvmti/GetNamedModule/MyPackage/GetNamedModuleTest.java
--- a/test/serviceability/jvmti/GetNamedModule/MyPackage/GetNamedModuleTest.java	Wed Jun 07 18:57:35 2017 -0700
+++ b/test/serviceability/jvmti/GetNamedModule/MyPackage/GetNamedModuleTest.java	Tue Jun 13 16:19:49 2017 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2017, 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
@@ -26,6 +26,7 @@
 /**
  * @test
  * @summary Verifies the JVMTI GetNamedModule API
+ * @modules jdk.jdi
  * @compile GetNamedModuleTest.java
  * @run main/othervm/native -agentlib:GetNamedModuleTest MyPackage.GetNamedModuleTest
  */
diff -r 921359dbc96b -r d7709f2d4bd3 test/serviceability/jvmti/IsModifiableModule/MyPackage/IsModifiableModuleTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/serviceability/jvmti/IsModifiableModule/MyPackage/IsModifiableModuleTest.java	Tue Jun 13 16:19:49 2017 -0700
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+package MyPackage;
+
+/**
+ * @test
+ * @summary Verifies the JVMTI IsModifiableModule API
+ * @modules jdk.jdi
+ * @compile IsModifiableModuleTest.java
+ * @run main/othervm/native -agentlib:IsModifiableModuleTest MyPackage.IsModifiableModuleTest
+ */
+
+import java.io.PrintStream;
+
+public class IsModifiableModuleTest {
+
+    static {
+        try {
+            System.loadLibrary("IsModifiableModuleTest");
+        } catch (UnsatisfiedLinkError ule) {
+            System.err.println("Could not load IsModifiableModuleTest library");
+            System.err.println("java.library.path: "
+                + System.getProperty("java.library.path"));
+            throw ule;
+        }
+    }
+
+    native static int check();
+
+    public static void main(String args[]) {
+        int status = check();
+        if (status != 0) {
+            throw new RuntimeException("Non-zero status returned from the agent: " + status);
+        }
+    }
+}
diff -r 921359dbc96b -r d7709f2d4bd3 test/serviceability/jvmti/IsModifiableModule/libIsModifiableModuleTest.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/serviceability/jvmti/IsModifiableModule/libIsModifiableModuleTest.c	Tue Jun 13 16:19:49 2017 -0700
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2017, 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"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef JNI_ENV_ARG
+
+#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
+
+#endif
+
+#define TranslateError(err) "JVMTI error"
+
+#define PASSED 0
+#define FAILED 2
+
+static const char *EXC_CNAME = "java/lang/AssertionError";
+
+static jvmtiEnv *jvmti = NULL;
+static jint result = PASSED;
+static jboolean printdump = JNI_FALSE;
+
+static jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved);
+
+JNIEXPORT
+jint JNICALL Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+
+JNIEXPORT
+jint JNICALL Agent_OnAttach(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+
+JNIEXPORT
+jint JNICALL JNI_OnLoad(JavaVM *jvm, void *reserved) {
+    return JNI_VERSION_1_8;
+}
+
+static
+jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
+    jint res;
+
+    if (options != NULL && strcmp(options, "printdump") == 0) {
+        printdump = JNI_TRUE;
+    }
+
+    res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti),
+        JVMTI_VERSION_9);
+    if (res != JNI_OK || jvmti == NULL) {
+        printf("    Error: wrong result of a valid call to GetEnv!\n");
+        return JNI_ERR;
+    }
+
+    return JNI_OK;
+}
+
+static
+jclass find_class(JNIEnv *env, const char* cname) {
+    jclass cls = JNI_ENV_PTR(env)->FindClass(JNI_ENV_ARG(env, cname));
+
+    if (cls == NULL) {
+        printf("find_class: Error: FindClass(env, \"%s\") returned NULL\n", cname);
+    }
+    return cls;
+}
+
+static
+jint throw_exc(JNIEnv *env, char *msg) {
+    jclass exc_class = find_class(env, EXC_CNAME);
+
+    if (exc_class == NULL) {
+        printf("throw_exc: Error in find_class(env, \"%s\")\n", EXC_CNAME);
+        return -1;
+    }
+    return JNI_ENV_PTR(env)->ThrowNew(JNI_ENV_ARG(env, exc_class), msg);
+}
+
+static jobject get_module_by_class_name(JNIEnv *env, const char* cname) {
+    jobject module = NULL;
+    jclass cls = find_class(env, cname);
+
+    printf(">>> getting module by class name: \"%s\"\n", cname);
+    if (cls == NULL) {
+        printf("get_module_by_class_name: Error in find_class(env, \"%s\")\n", cname);
+        return NULL;
+    }
+    module = JNI_ENV_PTR(env)->GetModule(JNI_ENV_ARG(env, cls));
+    if (module == NULL) {
+        printf("get_module_by_class_name: Error in GetModule for class \"%s\"\n", cname);
+    }
+    return module;
+}
+
+static
+jint check_is_modifiable_error_codes(jobject module, jobject not_a_module) {
+    jvmtiError err = JVMTI_ERROR_NONE;
+    jboolean is_modifiable = JNI_FALSE;
+
+    printf(">>> passing a bad module argument to JVMTI IsModifiableModule\n");
+    err = (*jvmti)->IsModifiableModule(jvmti, not_a_module, &is_modifiable);
+    if (err != JVMTI_ERROR_INVALID_MODULE) {
+        printf("    Error #EC0: Did not get expected INVALID_MODULE error code from"
+               " IsModifiableModule: %s (%d)\n", TranslateError(err), err);
+        return FAILED;
+    }
+    printf(">>> passing NULL module argument to JVMTI IsModifiableModule\n");
+    err = (*jvmti)->IsModifiableModule(jvmti, NULL, &is_modifiable);
+    if (err != JVMTI_ERROR_NULL_POINTER) {
+        printf("    Error #EC1: Did not get expected NULL_POINTER error code from"
+               " IsModifiableModule: %s (%d)\n", TranslateError(err), err);
+        return FAILED;
+    }
+    printf(">>> passing NULL status pointer to JVMTI IsModifiableModule\n");
+    err = (*jvmti)->IsModifiableModule(jvmti, module, NULL);
+    if (err != JVMTI_ERROR_NULL_POINTER) {
+        printf("    Error #EC2: Did not get expected NULL_POINTER error code from"
+               " IsModifiableModule: %s (%d)\n", TranslateError(err), err);
+        return FAILED;
+    }
+    return PASSED;
+}
+
+static
+jint check_is_modifiable(jobject module) {
+    jvmtiError err = JVMTI_ERROR_NONE;
+    jboolean is_modifiable = JNI_FALSE;
+
+    printf(">>> checking module %p is modifiable\n", module);
+    err = (*jvmti)->IsModifiableModule(jvmti, module, &is_modifiable);
+    if (err != JVMTI_ERROR_NONE) {
+        printf("    Error in IsModifiableModule for module %p: %s (%d)\n",
+               module, TranslateError(err), err);
+        return FAILED;
+    }
+    if (is_modifiable == JNI_FALSE) {
+        printf("    unexpected non-modifiable status for module: %p\n", module);
+        return FAILED;
+    }
+    return PASSED;
+}
+
+JNIEXPORT jint JNICALL
+Java_MyPackage_IsModifiableModuleTest_check(JNIEnv *env, jclass cls) {
+    jobject module = NULL;
+
+    if (jvmti == NULL) {
+        throw_exc(env, "JVMTI client was not properly loaded!\n");
+        return FAILED;
+    }
+
+    printf("\n*** Testing IsModifiableModule ***\n\n");
+
+    if (check_is_modifiable_error_codes(module, cls) == FAILED) {
+        throw_exc(env, "check #MM0: failed to return expected error code from "
+                      "a bad call to JVMTI IsModifiableModule");
+        return FAILED;
+    }
+
+    module = get_module_by_class_name(env, "java/lang/Class");
+    if (check_is_modifiable(module) == FAILED) {
+        throw_exc(env, "check #MM1: failed to return modifiable module status");
+        return FAILED;
+    }
+
+    module = get_module_by_class_name(env, "com/sun/jdi/VirtualMachine");
+    if (check_is_modifiable(module) == FAILED) {
+        throw_exc(env, "check #MM2: failed to return modifiable module status");
+        return FAILED;
+    }
+
+    module = get_module_by_class_name(env, "MyPackage/IsModifiableModuleTest");
+    if (check_is_modifiable(module) == FAILED) {
+        throw_exc(env, "check #MM3: failed to return modifiable module status");
+        return FAILED;
+    }
+
+    return PASSED;
+}
+
+#ifdef __cplusplus
+}
+#endif