Question
I decompiles one file, using Java Decompiler
I found such line in my code, as below
https://stackoverflow.com/questions/18930418
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Russian arg = remoteActionArgument.getDataType().getJavaDataType().getConstructor(new Class[] {
java/lang/String
}).newInstance(new Object[] {
strArg
});
Here, I see like this java/lang/String
I am unable to understand it, what exactly this structure is.
Any Suggestion?
I tried following things
*** 1. import java.lang.;***
2.Change within this line to know where is call but I find nothing except such code, another classfile
package org.itolab.morihit.clinkx;
import java.util.*;
public abstract class UPnPDataType extends Enum
{
public static final UPnPDataType UI1;
public static final UPnPDataType UI2;
public static final UPnPDataType UI4;
public static final UPnPDataType I1;
public static final UPnPDataType I2;
public static final UPnPDataType I4;
public static final UPnPDataType INT;
public static final UPnPDataType R4;
public static final UPnPDataType R8;
public static final UPnPDataType NUMBER;
public static final UPnPDataType FIXED_14_4;
public static final UPnPDataType FLOAT;
public static final UPnPDataType CHAR;
public static final UPnPDataType STRING;
public static final UPnPDataType DATE;
public static final UPnPDataType DATETIME;
public static final UPnPDataType DATETIME_TZ;
public static final UPnPDataType TIME;
public static final UPnPDataType TIME_TZ;
public static final UPnPDataType BOOLEAN;
public static final UPnPDataType BIN_BASE64;
public static final UPnPDataType BIN_HEX;
public static final UPnPDataType URI;
public static final UPnPDataType UUID;
private static final Map map;
private final String name;
private static final UPnPDataType $VALUES[];
public static UPnPDataType[] values()
{
return (UPnPDataType[])$VALUES.clone();
}
public static UPnPDataType valueOf(String name)
{
return (UPnPDataType)Enum.valueOf(org/itolab/morihit/clinkx/UPnPDataType, name);
}
static UPnPDataType get(String name)
{
return (UPnPDataType)map.get(name);
}
private UPnPDataType(String s, int i, String name)
{
super(s, i);
this.name = name;
}
public String toString()
{
return name;
}
public Class getJavaDataType()
{
throw new UnsupportedOperationException();
}
abstract Object upnpStringToJavaObject(String s);
abstract String javaObjectToUpnpString(Object obj);
static Object booleanUpnpStringToJavaObject(String value)
{
if(value == null || value.equals("0"))
{
return Boolean.FALSE;
} else
{
return Boolean.TRUE;
}
}
static String booleanJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Boolean != value.getClass() || value.equals(Boolean.FALSE))
{
return "0";
} else
{
return "1";
}
}
static Object integerUpnpStringToJavaObject(String value)
{
return new Integer(value);
NumberFormatException e;
e;
return Integer.valueOf(0);
}
static String integerJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Integer != value.getClass())
{
return "0";
} else
{
return value.toString();
}
}
static Object longUpnpStringToJavaObject(String value)
{
return new Long(value);
NumberFormatException e;
e;
return Long.valueOf(0L);
}
static String longJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Long != value.getClass())
{
return "0";
} else
{
return value.toString();
}
}
static Object floatUpnpStringToJavaObject(String value)
{
return new Float(value);
NumberFormatException e;
e;
return new Float(0.0F);
}
static String floatJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Float != value.getClass())
{
return "0.0";
} else
{
return value.toString();
}
}
static Object doubleUpnpStringToJavaObject(String value)
{
return new Double(value);
NumberFormatException e;
e;
return new Double(0.0D);
}
static String doubleJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Double != value.getClass())
{
return "0.0";
} else
{
return value.toString();
}
}
static Object characterUpnpStringToJavaObject(String value)
{
if(value == null || value.length() != 1)
{
return Character.valueOf('\0');
} else
{
return Character.valueOf(value.charAt(0));
}
}
static String characterJavaObjectToUpnpString(Object value)
{
if(value == null || java/lang/Character != value.getClass())
{
return "\0";
} else
{
return value.toString();
}
}
static
{
UI1 = new UPnPDataType("UI1", 0, "ui1") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
UI2 = new UPnPDataType("UI2", 1, "ui2") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
UI4 = new UPnPDataType("UI4", 2, "ui4") {
public Class getJavaDataType()
{
return java/lang/Long;
}
Object upnpStringToJavaObject(String value)
{
return longUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return longJavaObjectToUpnpString(value);
}
};
I1 = new UPnPDataType("I1", 3, "i1") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
I2 = new UPnPDataType("I2", 4, "i2") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
I4 = new UPnPDataType("I4", 5, "i4") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
INT = new UPnPDataType("INT", 6, "int") {
public Class getJavaDataType()
{
return java/lang/Integer;
}
Object upnpStringToJavaObject(String value)
{
return integerUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return integerJavaObjectToUpnpString(value);
}
};
R4 = new UPnPDataType("R4", 7, "r4") {
public Class getJavaDataType()
{
return java/lang/Float;
}
Object upnpStringToJavaObject(String value)
{
return floatUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return floatJavaObjectToUpnpString(value);
}
};
R8 = new UPnPDataType("R8", 8, "r8") {
public Class getJavaDataType()
{
return java/lang/Double;
}
Object upnpStringToJavaObject(String value)
{
return doubleUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return doubleJavaObjectToUpnpString(value);
}
};
NUMBER = new UPnPDataType("NUMBER", 9, "number") {
public Class getJavaDataType()
{
return java/lang/Double;
}
Object upnpStringToJavaObject(String value)
{
return doubleUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return doubleJavaObjectToUpnpString(value);
}
};
FIXED_14_4 = new UPnPDataType("FIXED_14_4", 10, "fixed.14.4") {
public Class getJavaDataType()
{
return java/lang/Double;
}
Object upnpStringToJavaObject(String value)
{
return doubleUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return doubleJavaObjectToUpnpString(value);
}
};
FLOAT = new UPnPDataType("FLOAT", 11, "float") {
public Class getJavaDataType()
{
return java/lang/Float;
}
Object upnpStringToJavaObject(String value)
{
return floatUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return floatJavaObjectToUpnpString(value);
}
};
CHAR = new UPnPDataType("CHAR", 12, "char") {
public Class getJavaDataType()
{
return java/lang/Character;
}
Object upnpStringToJavaObject(String value)
{
return characterUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return characterJavaObjectToUpnpString(value);
}
};
STRING = new UPnPDataType("STRING", 13, "string") {
public Class getJavaDataType()
{
return java/lang/String;
}
Object upnpStringToJavaObject(String value)
{
if(value == null)
{
return "";
} else
{
return value;
}
}
String javaObjectToUpnpString(Object value)
{
if(value == null || java/lang/String != value.getClass())
{
return "";
} else
{
return (String)value;
}
}
};
DATE = new UPnPDataType("DATE", 14, "date") {
public Class getJavaDataType()
{
return java/util/Date;
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
DATETIME = new UPnPDataType("DATETIME", 15, "dateTime") {
public Class getJavaDataType()
{
return java/util/Date;
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
DATETIME_TZ = new UPnPDataType("DATETIME_TZ", 16, "dateTime.tz") {
public Class getJavaDataType()
{
return java/util/Date;
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
TIME = new UPnPDataType("TIME", 17, "time") {
public Class getJavaDataType()
{
return java/lang/Long;
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
TIME_TZ = new UPnPDataType("TIME_TZ", 18, "time.tz") {
public Class getJavaDataType()
{
return java/lang/Long;
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
BOOLEAN = new UPnPDataType("BOOLEAN", 19, "boolean") {
public Class getJavaDataType()
{
return java/lang/Boolean;
}
Object upnpStringToJavaObject(String value)
{
return booleanUpnpStringToJavaObject(value);
}
String javaObjectToUpnpString(Object value)
{
return booleanJavaObjectToUpnpString(value);
}
};
BIN_BASE64 = new UPnPDataType("BIN_BASE64", 20, "bin.base64") {
public Class getJavaDataType()
{
return (new byte[0]).getClass();
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
BIN_HEX = new UPnPDataType("BIN_HEX", 21, "bin.hex") {
public Class getJavaDataType()
{
return (new byte[0]).getClass();
}
Object upnpStringToJavaObject(String value)
{
throw new RuntimeException("not implemented yet");
}
String javaObjectToUpnpString(Object value)
{
throw new RuntimeException("not implemented yet");
}
};
URI = new UPnPDataType("URI", 22, "uri") {
public Class getJavaDataType()
{
return java/lang/String;
}
Object upnpStringToJavaObject(String value)
{
if(value == null)
{
return "";
} else
{
return value;
}
}
String javaObjectToUpnpString(Object value)
{
if(value == null || java/lang/String != value.getClass())
{
return "";
} else
{
return (String)value;
}
}
};
UUID = new UPnPDataType("UUID", 23, "uuid") {
public Class getJavaDataType()
{
return java/lang/String;
}
Object upnpStringToJavaObject(String value)
{
if(value == null)
{
return "";
} else
{
return value;
}
}
String javaObjectToUpnpString(Object value)
{
if(value == null || java/lang/String != value.getClass())
{
return "";
} else
{
return (String)value;
}
}
};
$VALUES = (new UPnPDataType[] {
UI1, UI2, UI4, I1, I2, I4, INT, R4, R8, NUMBER,
FIXED_14_4, FLOAT, CHAR, STRING, DATE, DATETIME, DATETIME_TZ, TIME, TIME_TZ, BOOLEAN,
BIN_BASE64, BIN_HEX, URI, UUID
});
Map _map = new HashMap();
UPnPDataType arr$[] = values();
int len$ = arr$.length;
for(int i$ = 0; i$ < len$; i$++)
{
UPnPDataType type = arr$[i$];
_map.put(type.toString(), type);
}
map = Collections.unmodifiableMap(_map);
}
}
How such java/lang/.... structure is in java, HELP NEEDED
Thanks
Solution
In your code replace:
.getConstructor(new Class[] { java/lang/String }) ...
With:
getConstructor(new Class[] { String.class }) ...
The notation java/lang/String is an internal representation of the name of the class String. No need to explicitly import java.lang.*;, it is imported implicitly.
OTHER TIPS
The java/lang/ is being added by your decompiler(not sure which decompiler you are using).
If you want to compile your source. Delete all the java/lang/ in the src. No need to import anything java.lang is imported by default.
