add 支持从 jmods 中读取文件. 废弃 rt.jar 配置项

src/main/java/haidnor/jvm/classloader/ClassLoader.java

@@ -4,10 +4,10 @@ import haidnor.jvm.rtda.Klass;
 import org.apache.bcel.classfile.ClassParser;
 import org.apache.bcel.classfile.JavaClass;
 
-import java.io.*;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URL;
 import java.util.Enumeration;
-import java.util.Properties;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 
@@ -18,19 +18,18 @@ public class ClassLoader {
 
     public final String name;
 
-    public final static String rtJarPath;
+    public final static String JAVA_HOME;
+
+    /**
+     * java.base.jmod 文件路径
+     */
+    public final static String javaBaseJmodPath;
 
     public JarFile jarFile = null;
 
     static {
-        InputStream is = ClassLoader.class.getResourceAsStream("/haidnorJVM.properties");
-        Properties properties = new Properties();
-        try {
-            properties.load(is);
-        } catch (IOException e) {
-            throw new RuntimeException(e);
-        }
-        rtJarPath = properties.getProperty("rt.jar");
+        JAVA_HOME = System.getenv( "JAVA_HOME");
+        javaBaseJmodPath = JAVA_HOME + "/jmods/java.base.jmod";
     }
 
     public ClassLoader(String name) {
@@ -48,10 +47,7 @@ public class ClassLoader {
     public Klass loadClass(String classPath) throws IOException {
         ClassParser classParser = null;
         if (classPath.startsWith("java/")) {
-            if (!new File(rtJarPath).exists()) {
-                throw new IllegalStateException("rt.jar not found");
-            }
-            classParser = new ClassParser(rtJarPath, classPath + ".class");
+            classParser = new ClassParser(javaBaseJmodPath, "classes/" + classPath + ".class");
         } else if (jarFile != null) {
             Enumeration<JarEntry> entries = jarFile.entries();
             while (entries.hasMoreElements()) {

src/test/java/haidnor/jvm/test/TestJVM.java

@@ -92,7 +92,6 @@ public class TestJVM {
      */
     @Test
     public void demo_foreach_2() throws Exception {
-        // TODO wangxiang fix bug
         // runMainClass(demo_foreach_2.class);
     }
 

src/test/resources/haidnorJVM.properties

@@ -1 +0,0 @@
-rt.jar=D:/Program Files/Java/jdk1.8.0_361/jre/lib/rt.jar