--- a/jdk/src/java.base/windows/native/libjli/java_md.c Thu Jan 14 13:53:13 2016 +0100
+++ b/jdk/src/java.base/windows/native/libjli/java_md.c Thu Jan 14 18:22:32 2016 +0300
@@ -337,6 +337,15 @@
}
}
+ /* Try getting path to JRE from path to JLI.DLL */
+ if (GetApplicationHomeFromDll(path, pathsize)) {
+ JLI_Snprintf(javadll, sizeof(javadll), "%s\\bin\\" JAVA_DLL, path);
+ if (stat(javadll, &s) == 0) {
+ JLI_TraceLauncher("JRE path is %s\n", path);
+ return JNI_TRUE;
+ }
+ }
+
JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL);
return JNI_FALSE;
@@ -404,17 +413,17 @@
}
/*
- * If app is "c:\foo\bin\javac", then put "c:\foo" into buf.
+ * Removes the trailing file name and one sub-folder from a path.
+ * If buf is "c:\foo\bin\javac", then put "c:\foo" into buf.
*/
jboolean
-GetApplicationHome(char *buf, jint bufsize)
+TruncatePath(char *buf)
{
char *cp;
- GetModuleFileName(0, buf, bufsize);
*JLI_StrRChr(buf, '\\') = '\0'; /* remove .exe file name */
if ((cp = JLI_StrRChr(buf, '\\')) == 0) {
/* This happens if the application is in a drive root, and
- * there is no bin directory. */
+ * there is no bin directory. */
buf[0] = '\0';
return JNI_FALSE;
}
@@ -423,6 +432,36 @@
}
/*
+ * Retrieves the path to the JRE home by locating the executable file
+ * of the current process and then truncating the path to the executable
+ */
+jboolean
+GetApplicationHome(char *buf, jint bufsize)
+{
+ GetModuleFileName(NULL, buf, bufsize);
+ return TruncatePath(buf);
+}
+
+/*
+ * Retrieves the path to the JRE home by locating JLI.DLL and
+ * then truncating the path to JLI.DLL
+ */
+jboolean
+GetApplicationHomeFromDll(char *buf, jint bufsize)
+{
+ HMODULE hModule;
+ DWORD dwFlags =
+ GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
+ GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT;
+
+ if (GetModuleHandleEx(dwFlags, (LPCSTR)&GetJREPath, &hModule) == 0) {
+ return JNI_FALSE;
+ };
+ GetModuleFileName(hModule, buf, bufsize);
+ return TruncatePath(buf);
+}
+
+/*
* Support for doing cheap, accurate interval timing.
*/
static jboolean counterAvailable = JNI_FALSE;
--- a/jdk/src/java.base/windows/native/libjli/java_md.h Thu Jan 14 13:53:13 2016 +0100
+++ b/jdk/src/java.base/windows/native/libjli/java_md.h Thu Jan 14 18:22:32 2016 +0300
@@ -54,4 +54,7 @@
int UnsetEnv(char *name);
+jboolean
+GetApplicationHomeFromDll(char *buf, jint bufsize);
+
#endif /* JAVA_MD_H */