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63 changes: 63 additions & 0 deletions
63
sandbox-core/src/main/java/com/alibaba/jvm/sandbox/core/util/AsmUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package com.alibaba.jvm.sandbox.core.util; | ||
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| import com.alibaba.jvm.sandbox.core.util.matcher.structure.ClassStructure; | ||
| import com.alibaba.jvm.sandbox.core.util.matcher.structure.ClassStructureFactory; | ||
| import org.apache.commons.io.IOUtils; | ||
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| import java.io.InputStream; | ||
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| import static com.alibaba.jvm.sandbox.core.util.SandboxStringUtils.toInternalClassName; | ||
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| /** | ||
| * ASM工具集 | ||
| * | ||
| * @author luanjia@taobao.com | ||
| */ | ||
| public class AsmUtils { | ||
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| /** | ||
| * {@see org.objectweb.asm.ClassWriter#getCommonSuperClass(String, String)} | ||
| */ | ||
| public static String getCommonSuperClass(String type1, String type2, ClassLoader loader) { | ||
| return getCommonSuperClassImplByAsm(type1, type2, loader); | ||
| } | ||
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| // implements by ASM | ||
| private static String getCommonSuperClassImplByAsm(String type1, String type2, ClassLoader targetClassLoader) { | ||
| InputStream inputStreamOfType1 = null, inputStreamOfType2 = null; | ||
| try { | ||
| inputStreamOfType1 = targetClassLoader.getResourceAsStream(type1 + ".class"); | ||
| if (null == inputStreamOfType1) { | ||
| return "java/lang/Object"; | ||
| } | ||
| inputStreamOfType2 = targetClassLoader.getResourceAsStream(type2 + ".class"); | ||
| if (null == inputStreamOfType2) { | ||
| return "java/lang/Object"; | ||
| } | ||
| final ClassStructure classStructureOfType1 = ClassStructureFactory.createClassStructure(inputStreamOfType1, targetClassLoader); | ||
| final ClassStructure classStructureOfType2 = ClassStructureFactory.createClassStructure(inputStreamOfType2, targetClassLoader); | ||
| if (classStructureOfType2.getFamilyTypeClassStructures().contains(classStructureOfType1)) { | ||
| return type1; | ||
| } | ||
| if (classStructureOfType1.getFamilyTypeClassStructures().contains(classStructureOfType2)) { | ||
| return type2; | ||
| } | ||
| if (classStructureOfType1.getAccess().isInterface() | ||
| || classStructureOfType2.getAccess().isInterface()) { | ||
| return "java/lang/Object"; | ||
| } | ||
| ClassStructure classStructure = classStructureOfType1; | ||
| do { | ||
| classStructure = classStructure.getSuperClassStructure(); | ||
| if (null == classStructure) { | ||
| return "java/lang/Object"; | ||
| } | ||
| } while (!classStructureOfType2.getFamilyTypeClassStructures().contains(classStructure)); | ||
| return toInternalClassName(classStructure.getJavaClassName()); | ||
| } finally { | ||
| IOUtils.closeQuietly(inputStreamOfType1); | ||
| IOUtils.closeQuietly(inputStreamOfType2); | ||
| } | ||
| } | ||
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| } |
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22 changes: 22 additions & 0 deletions
22
sandbox-core/src/test/java/com/alibaba/jvm/sandbox/qatest/core/issues/Issues133.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,22 @@ | ||
| package com.alibaba.jvm.sandbox.qatest.core.issues; | ||
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| import org.junit.Assert; | ||
| import org.junit.Test; | ||
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| import java.io.InputStream; | ||
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| import static com.alibaba.jvm.sandbox.core.util.AsmUtils.getCommonSuperClass; | ||
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| public class Issues133 { | ||
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| @Test | ||
| public void test() { | ||
| final ClassLoader loader = getClass().getClassLoader(); | ||
| Assert.assertEquals("java/io/InputStream", getCommonSuperClass("java/io/FileInputStream", "javax/servlet/ServletInputStream", loader)); | ||
| Assert.assertEquals("java/lang/Exception", getCommonSuperClass("java/io/IOException", "javax/servlet/ServletException", loader)); | ||
| Assert.assertEquals("javax/servlet/ServletResponse", getCommonSuperClass("javax/servlet/ServletResponse", "javax/servlet/http/HttpServletResponse", loader)); | ||
| Assert.assertEquals("javax/servlet/ServletResponse", getCommonSuperClass("javax/servlet/http/HttpServletResponse", "javax/servlet/ServletResponse", loader)); | ||
| Assert.assertEquals("java/lang/Object", getCommonSuperClass("java/lang/Throwable", "java/io/FileInputStream", loader)); | ||
| } | ||
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| } |
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