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8141615: Add new public methods to sun.reflect.ConstantPool

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Reviewed-by: twisti, iignatyev, coleenp
This commit is contained in:
Konstantin Shefov 2016-01-12 17:03:06 +03:00
parent 012f69ce01
commit 13e2eedb5f
6 changed files with 363 additions and 3 deletions
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4
jdk/make/mapfiles/libjava/mapfile-vers
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@ -251,6 +251,7 @@ SUNWprivate_1.1 {
Java_sun_misc_Signal_raise0;
Java_sun_reflect_ConstantPool_getClassAt0;
Java_sun_reflect_ConstantPool_getClassAtIfLoaded0;
Java_sun_reflect_ConstantPool_getClassRefIndexAt0;
Java_sun_reflect_ConstantPool_getDoubleAt0;
Java_sun_reflect_ConstantPool_getFieldAt0;
Java_sun_reflect_ConstantPool_getFieldAtIfLoaded0;
@ -260,8 +261,11 @@ SUNWprivate_1.1 {
Java_sun_reflect_ConstantPool_getMemberRefInfoAt0;
Java_sun_reflect_ConstantPool_getMethodAt0;
Java_sun_reflect_ConstantPool_getMethodAtIfLoaded0;
Java_sun_reflect_ConstantPool_getNameAndTypeRefIndexAt0;
Java_sun_reflect_ConstantPool_getNameAndTypeRefInfoAt0;
Java_sun_reflect_ConstantPool_getSize0;
Java_sun_reflect_ConstantPool_getStringAt0;
Java_sun_reflect_ConstantPool_getTagAt0;
Java_sun_reflect_ConstantPool_getUTF8At0;
Java_java_io_Console_istty;
Java_java_io_Console_encoding;

53
jdk/src/java.base/share/classes/sun/reflect/ConstantPool.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2015, 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
@ -36,6 +36,10 @@ public class ConstantPool {
public int getSize() { return getSize0 (constantPoolOop); }
public Class<?> getClassAt (int index) { return getClassAt0 (constantPoolOop, index); }
public Class<?> getClassAtIfLoaded (int index) { return getClassAtIfLoaded0 (constantPoolOop, index); }
// Returns a class reference index for a method or a field.
public int getClassRefIndexAt(int index) {
return getClassRefIndexAt0(constantPoolOop, index);
}
// Returns either a Method or Constructor.
// Static initializers are returned as Method objects.
public Member getMethodAt (int index) { return getMethodAt0 (constantPoolOop, index); }
@ -45,13 +49,56 @@ public class ConstantPool {
// Fetches the class name, member (field, method or interface
// method) name, and type descriptor as an array of three Strings
public String[] getMemberRefInfoAt (int index) { return getMemberRefInfoAt0 (constantPoolOop, index); }
// Returns a name and type reference index for a method, a field or an invokedynamic.
public int getNameAndTypeRefIndexAt(int index) {
return getNameAndTypeRefIndexAt0(constantPoolOop, index);
}
// Fetches the name and type from name_and_type index as an array of two Strings
public String[] getNameAndTypeRefInfoAt(int index) {
return getNameAndTypeRefInfoAt0(constantPoolOop, index);
}
public int getIntAt (int index) { return getIntAt0 (constantPoolOop, index); }
public long getLongAt (int index) { return getLongAt0 (constantPoolOop, index); }
public float getFloatAt (int index) { return getFloatAt0 (constantPoolOop, index); }
public double getDoubleAt (int index) { return getDoubleAt0 (constantPoolOop, index); }
public String getStringAt (int index) { return getStringAt0 (constantPoolOop, index); }
public String getUTF8At (int index) { return getUTF8At0 (constantPoolOop, index); }
public Tag getTagAt(int index) {
return Tag.valueOf(getTagAt0(constantPoolOop, index));
}
public static enum Tag {
UTF8(1),
INTEGER(3),
FLOAT(4),
LONG(5),
DOUBLE(6),
CLASS(7),
STRING(8),
FIELDREF(9),
METHODREF(10),
INTERFACEMETHODREF(11),
NAMEANDTYPE(12),
METHODHANDLE(15),
METHODTYPE(16),
INVOKEDYNAMIC(18),
INVALID(0);
private final int tagCode;
private Tag(int tagCode) {
this.tagCode = tagCode;
}
private static Tag valueOf(byte v) {
for (Tag tag : Tag.values()) {
if (tag.tagCode == v) {
return tag;
}
}
throw new IllegalArgumentException("Unknown constant pool tag code " + v);
}
}
//---------------------------------------------------------------------------
// Internals only below this point
//
@ -66,15 +113,19 @@ public class ConstantPool {
private native int getSize0 (Object constantPoolOop);
private native Class<?> getClassAt0 (Object constantPoolOop, int index);
private native Class<?> getClassAtIfLoaded0 (Object constantPoolOop, int index);
private native int getClassRefIndexAt0 (Object constantPoolOop, int index);
private native Member getMethodAt0 (Object constantPoolOop, int index);
private native Member getMethodAtIfLoaded0(Object constantPoolOop, int index);
private native Field getFieldAt0 (Object constantPoolOop, int index);
private native Field getFieldAtIfLoaded0 (Object constantPoolOop, int index);
private native String[] getMemberRefInfoAt0 (Object constantPoolOop, int index);
private native int getNameAndTypeRefIndexAt0(Object constantPoolOop, int index);
private native String[] getNameAndTypeRefInfoAt0(Object constantPoolOop, int index);
private native int getIntAt0 (Object constantPoolOop, int index);
private native long getLongAt0 (Object constantPoolOop, int index);
private native float getFloatAt0 (Object constantPoolOop, int index);
private native double getDoubleAt0 (Object constantPoolOop, int index);
private native String getStringAt0 (Object constantPoolOop, int index);
private native String getUTF8At0 (Object constantPoolOop, int index);
private native byte getTagAt0 (Object constantPoolOop, int index);
}

14
jdk/src/java.base/share/native/include/jvm.h
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@ -63,7 +63,7 @@ extern "C" {
* class.
*/
#define JVM_INTERFACE_VERSION 4
#define JVM_INTERFACE_VERSION 5
JNIEXPORT jint JNICALL
JVM_GetInterfaceVersion(void);
@ -502,6 +502,9 @@ JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAt
JNIEXPORT jclass JNICALL JVM_ConstantPoolGetClassAtIfLoaded
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetClassRefIndexAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jobject JNICALL JVM_ConstantPoolGetMethodAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
@ -517,6 +520,12 @@ JNIEXPORT jobject JNICALL JVM_ConstantPoolGetFieldAtIfLoaded
JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetMemberRefInfoAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetNameAndTypeRefIndexAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jobjectArray JNICALL JVM_ConstantPoolGetNameAndTypeRefInfoAt
(JNIEnv *env, jobject obj, jobject unused, jint index);
JNIEXPORT jint JNICALL JVM_ConstantPoolGetIntAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
@ -535,6 +544,9 @@ JNIEXPORT jstring JNICALL JVM_ConstantPoolGetStringAt
JNIEXPORT jstring JNICALL JVM_ConstantPoolGetUTF8At
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
JNIEXPORT jbyte JNICALL JVM_ConstantPoolGetTagAt
(JNIEnv *env, jobject unused, jobject jcpool, jint index);
/*
* Parameter reflection
*/

27
jdk/src/java.base/share/native/libjava/ConstantPool.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2015, 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
@ -44,6 +44,12 @@ JNIEXPORT jclass JNICALL Java_sun_reflect_ConstantPool_getClassAtIfLoaded0
return JVM_ConstantPoolGetClassAtIfLoaded(env, unused, jcpool, index);
}
JNIEXPORT jint JNICALL Java_sun_reflect_ConstantPool_getClassRefIndexAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
return JVM_ConstantPoolGetClassRefIndexAt(env, unused, jcpool, index);
}
JNIEXPORT jobject JNICALL Java_sun_reflect_ConstantPool_getMethodAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
@ -74,6 +80,18 @@ JNIEXPORT jobjectArray JNICALL Java_sun_reflect_ConstantPool_getMemberRefInfoAt0
return JVM_ConstantPoolGetMemberRefInfoAt(env, unused, jcpool, index);
}
JNIEXPORT jint JNICALL Java_sun_reflect_ConstantPool_getNameAndTypeRefIndexAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
return JVM_ConstantPoolGetNameAndTypeRefIndexAt(env, unused, jcpool, index);
}
JNIEXPORT jobjectArray JNICALL Java_sun_reflect_ConstantPool_getNameAndTypeRefInfoAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
return JVM_ConstantPoolGetNameAndTypeRefInfoAt(env, unused, jcpool, index);
}
JNIEXPORT jint JNICALL Java_sun_reflect_ConstantPool_getIntAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
@ -109,3 +127,10 @@ JNIEXPORT jstring JNICALL Java_sun_reflect_ConstantPool_getUTF8At0
{
return JVM_ConstantPoolGetUTF8At(env, unused, jcpool, index);
}
JNIEXPORT jbyte JNICALL Java_sun_reflect_ConstantPool_getTagAt0
(JNIEnv *env, jobject unused, jobject jcpool, jint index)
{
return JVM_ConstantPoolGetTagAt(env, unused, jcpool, index);
}

170
jdk/test/sun/reflect/constantPool/ConstantPoolTest.java Normal file
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@ -0,0 +1,170 @@
/*
* Copyright (c) 2015, 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.
*/
/*
* @test
* @bug 8141615
* @summary Tests new public methods at sun.reflect.ConstantPool
* @modules java.base/sun.reflect
* @library /lib/testlibrary
* @compile ConstantPoolTestDummy.jasm
* @run main sun.reflect.constantPool.ConstantPoolTest
*/
package sun.reflect.constantPool;
import java.util.HashMap;
import java.util.Map;
import jdk.internal.misc.SharedSecrets;
import jdk.testlibrary.Asserts;
import sun.reflect.ConstantPool;
public class ConstantPoolTest {
private static final Class<?> TEST_CLASS = ConstantPoolTestDummy.class;
private static final ConstantPool CP = SharedSecrets.getJavaLangAccess()
.getConstantPool(TEST_CLASS);
public static void main(String[] s) {
for (TestCase testCase : TestCase.values()) {
testCase.test();
}
}
public static enum TestCase {
GET_TAG_AT {
{
referenceMap.put(1, ConstantPool.Tag.METHODREF);
referenceMap.put(2, ConstantPool.Tag.CLASS);
referenceMap.put(4, ConstantPool.Tag.UTF8);
referenceMap.put(10, ConstantPool.Tag.NAMEANDTYPE);
referenceMap.put(13, ConstantPool.Tag.LONG);
referenceMap.put(15, ConstantPool.Tag.INTEGER);
referenceMap.put(16, ConstantPool.Tag.INTERFACEMETHODREF);
referenceMap.put(21, ConstantPool.Tag.DOUBLE);
referenceMap.put(23, ConstantPool.Tag.STRING);
referenceMap.put(25, ConstantPool.Tag.INVOKEDYNAMIC);
referenceMap.put(29, ConstantPool.Tag.METHODHANDLE);
referenceMap.put(30, ConstantPool.Tag.METHODTYPE);
referenceMap.put(48, ConstantPool.Tag.FIELDREF);
referenceMap.put(52, ConstantPool.Tag.FLOAT);
}
@Override
void testIndex(int cpi, Object reference) {
ConstantPool.Tag tagToVerify = CP.getTagAt(cpi);
ConstantPool.Tag tagToRefer = (ConstantPool.Tag) reference;
String msg = String.format("Method getTagAt works not as expected"
+ "at CP entry #%d: got CP tag %s, but should be %s",
cpi, tagToVerify.name(), tagToRefer.name());
Asserts.assertEquals(tagToVerify, tagToRefer, msg);
}
},
GET_CLASS_REF_INDEX_AT {
{
referenceMap.put(1, 3);
referenceMap.put(16, 17);
referenceMap.put(32, 35);
referenceMap.put(34, 3);
referenceMap.put(48, 2);
}
@Override
void testIndex(int cpi, Object reference) {
int indexToVerify = CP.getClassRefIndexAt(cpi);
int indexToRefer = (int) reference;
String msg = String.format("Method getClassRefIndexAt works not"
+ " as expected at CP entry #%d:"
+ " got index %d, but should be %d",
cpi, indexToVerify, indexToRefer);
Asserts.assertEquals(indexToVerify, indexToRefer, msg);
}
},
GET_NAME_AND_TYPE_REF_INDEX_AT {
{
referenceMap.put(1, 10);
referenceMap.put(16, 18);
referenceMap.put(25, 26);
referenceMap.put(32, 36);
referenceMap.put(34, 37);
referenceMap.put(48, 49);
}
@Override
void testIndex(int cpi, Object reference) {
int indexToRefer = (int) reference;
int indexToVerify = CP.getNameAndTypeRefIndexAt(cpi);
String msg = String.format("Method getNameAndTypeRefIndexAt works"
+ " not as expected at CP entry #%d:"
+ " got index %d, but should be %d",
cpi, indexToVerify, indexToRefer);
Asserts.assertEquals(indexToVerify, indexToRefer, msg);
}
},
GET_NAME_AND_TYPE_REF_INFO_AT {
{
referenceMap.put(10, new String[]{"<init>", "()V"});
referenceMap.put(18, new String[]{"run", "()V"});
referenceMap.put(26, new String[]{"accept", "()Ljava/util/function/Consumer;"});
referenceMap.put(36, new String[]{"metafactory",
"(Ljava/lang/invoke/MethodHandles$Lookup;"
+ "Ljava/lang/String;Ljava/lang/invoke/MethodType;"
+ "Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;"
+ "Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"});
referenceMap.put(37, new String[]{"toString", "()Ljava/lang/String;"});
referenceMap.put(49, new String[]{"myField", "I"});
}
@Override
void testIndex(int cpi, Object reference) {
String[] natInfo = CP.getNameAndTypeRefInfoAt(cpi);
String msg = String.format("Method getNameAndTypeRefInfoAt"
+ " works not as expected at CP entry #%d:"
+ " returned value should not be null", cpi);
Asserts.assertNotNull(natInfo, msg);
String[] castedReference = (String[]) reference;
int natInfoLength = natInfo.length;
msg = String.format("Method getNameAndTypeRefInfoAt"
+ " works not as expected at CP entry #%d:"
+ " length of the returned string array is %d, but should be 2",
cpi, natInfoLength);
Asserts.assertEquals(natInfoLength, 2, msg);
String[] nameOrType = new String[]{"name", "type"};
for (int i = 0; i < 2; i++) {
String infoToVerify = natInfo[i];
String infoToRefer = castedReference[i];
msg = String.format("Method getNameAndTypeRefInfoAt"
+ " works not as expected at CP entry #%d:"
+ " got %s info %s, but should be %s",
cpi, nameOrType[i], infoToVerify, infoToRefer);
Asserts.assertEquals(infoToVerify, infoToRefer, msg);
}
}
};
protected final Map<Integer, Object> referenceMap;
TestCase() {
this.referenceMap = new HashMap<>();
}
abstract void testIndex(int cpi, Object reference);
public void test() {
referenceMap.forEach(this::testIndex);
}
}
}

98
jdk/test/sun/reflect/constantPool/ConstantPoolTestDummy.jasm Normal file
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@ -0,0 +1,98 @@
/*
* Copyright (c) 2015, 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 sun/reflect/constantPool;
super public #2; //class ConstantPoolTestDummy
version 52:0
{
// Actually, only first 13 constant pool entries are actually used by the class
// and its methods. All the rest are added just for the testing of getTagAt method
// and getNameAndTypeRefIndexAt method.
const #1 = Method #3.#10; // java/lang/Object."<init>":"()V"
const #2 = class #11; // ConstantPoolTestDummy
const #3 = class #12; // java/lang/Object
const #4 = Asciz "<init>";
const #5 = Asciz "()V";
const #6 = Asciz "Code";
const #7 = Asciz "LineNumberTable";
const #8 = Asciz "SourceFile";
const #9 = Asciz "ConstantPoolTestDummy.java";
const #10 = NameAndType #4:#5; // "<init>":"()V"
const #11 = Asciz "sun/reflect/constantPool/ConstantPoolTestDummy";
const #12 = Asciz "java/lang/Object";
const #13 = long 6l;
const #15 = int 1;
const #16 = InterfaceMethod #17.#18; // java/lang/Runnable.run:"()V"
const #17 = class #19; // java/lang/Runnable
const #18 = NameAndType #20:#5; // run:"()V"
const #19 = Asciz "java/lang/Runnable";
const #20 = Asciz "run";
const #21 = double 1.45d;
const #23 = String #24; // "Hello"
const #24 = Asciz "Hello";
const #25 = InvokeDynamic 0:#26; // REF_invokeStatic:java/lang/invoke/LambdaMetafactory.metafactory:"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;":accept:"()Ljava/util/function/Consumer;" MethodType "(Ljava/lang/Object;)V", MethodHandle REF_invokeVirtual:java/lang/Object.toString:"()Ljava/lang/String;", MethodType "(Ljava/lang/Object;)V"
const #26 = NameAndType #27:#28; // accept:"()Ljava/util/function/Consumer;"
const #27 = Asciz "accept";
const #28 = Asciz "()Ljava/util/function/Consumer;";
const #29 = MethodHandle 6:#32; // REF_invokeStatic:java/lang/invoke/LambdaMetafactory.metafactory:"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"
const #30 = MethodType #33; // "(Ljava/lang/Object;)V"
const #31 = MethodHandle 5:#34; // REF_invokeVirtual:java/lang/Object.toString:"()Ljava/lang/String;"
const #32 = Method #35.#36; // java/lang/invoke/LambdaMetafactory.metafactory:"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"
const #33 = Asciz "(Ljava/lang/Object;)V";
const #34 = Method #3.#37; // java/lang/Object.toString:"()Ljava/lang/String;"
const #35 = class #38; // java/lang/invoke/LambdaMetafactory
const #36 = NameAndType #39:#40; // metafactory:"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;"
const #37 = NameAndType #41:#42; // toString:"()Ljava/lang/String;"
const #38 = Asciz "java/lang/invoke/LambdaMetafactory";
const #39 = Asciz "metafactory";
const #40 = Asciz "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodType;Ljava/lang/invoke/MethodHandle;Ljava/lang/invoke/MethodType;)Ljava/lang/invoke/CallSite;";
const #41 = Asciz "toString";
const #42 = Asciz "()Ljava/lang/String;";
const #43 = class #46; // java/lang/invoke/MethodHandles$Lookup
const #44 = Asciz "Lookup";
const #45 = class #47; // java/lang/invoke/MethodHandles
const #46 = Asciz "java/lang/invoke/MethodHandles$Lookup";
const #47 = Asciz "java/lang/invoke/MethodHandles";
const #48 = Field #2.#49; // sun/reflect/constantPool/ConstantPoolTestDummy.myField:"I"
const #49 = NameAndType #50:#51; // myField:"I"
const #50 = Asciz "myField";
const #51 = Asciz "I";
const #52 = float 1.34f;
public Method #4:#5 // "<init>":"()V"
stack 1 locals 1
{
3 0: aload_0;
1: invokespecial #1; // Method java/lang/Object."<init>":"()V";
4: return;
}
public static final InnerClass #44= #43 of #45; //Lookup=class java/lang/invoke/MethodHandles$Lookup of class java/lang/invoke/MethodHandles
BootstrapMethod #29 #30 #31 #30;
} // end Class ConstantPoolTestDummy