I am writing a program that checks prices and if it increases past a set amount then lets the user know by putting into a JavaFX text area line by line with a time stamp, appendText() spits out 2 errors. The error codes don't point to anything specific which is causing me to go in circles.
Most of the code works and if I use System.out.print() instead the code runs perfectly, but if I use txtContent.appendText() then at a random time in the first five minutes I will get one of the following errors.
Exception in thread "JavaFX Application Thread" java.lang.NullPointerException: Cannot read the array length because "this.lines" is null
at javafx.graphics#19/com.sun.javafx.text.PrismTextLayout.layout(PrismTextLayout.java:1222)
at javafx.graphics#19/com.sun.javafx.text.PrismTextLayout.ensureLayout(PrismTextLayout.java:223)
at javafx.graphics#19/com.sun.javafx.text.PrismTextLayout.getBounds(PrismTextLayout.java:246)
at javafx.graphics#19/javafx.scene.text.Text.getLogicalBounds(Text.java:432)
at javafx.graphics#19/javafx.scene.text.Text.doComputeGeomBounds(Text.java:1187)
at javafx.graphics#19/javafx.scene.text.Text$1.doComputeGeomBounds(Text.java:149)
at javafx.graphics#19/com.sun.javafx.scene.shape.TextHelper.computeGeomBoundsImpl(TextHelper.java:90)
at javafx.graphics#19/com.sun.javafx.scene.NodeHelper.computeGeomBounds(NodeHelper.java:117)
at javafx.graphics#19/javafx.scene.Node.updateGeomBounds(Node.java:3825)
at javafx.graphics#19/javafx.scene.Node.getGeomBounds(Node.java:3787)
at javafx.graphics#19/javafx.scene.Node.getLocalBounds(Node.java:3735)
at javafx.graphics#19/javafx.scene.Node$MiscProperties$3.computeBounds(Node.java:6825)
at javafx.graphics#19/javafx.scene.Node$LazyBoundsProperty.get(Node.java:9840)
at javafx.graphics#19/javafx.scene.Node$LazyBoundsProperty.get(Node.java:9810)
at javafx.graphics#19/javafx.scene.Node.getBoundsInLocal(Node.java:3415)
at javafx.controls#19/javafx.scene.control.skin.TextAreaSkin$ContentView.layoutChildren(TextAreaSkin.java:1324)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1207)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Parent.layout(Parent.java:1214)
at javafx.graphics#19/javafx.scene.Scene.doLayoutPass(Scene.java:592)
at javafx.graphics#19/javafx.scene.Scene$ScenePulseListener.pulse(Scene.java:2512)
at javafx.graphics#19/com.sun.javafx.tk.Toolkit.lambda$runPulse$2(Toolkit.java:407)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at javafx.graphics#19/com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:406)
at javafx.graphics#19/com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:436)
at javafx.graphics#19/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:575)
at javafx.graphics#19/com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:555)
at javafx.graphics#19/com.sun.javafx.tk.quantum.QuantumToolkit.pulseFromQueue(QuantumToolkit.java:548)
at javafx.graphics#19/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$11(QuantumToolkit.java:352)
at javafx.graphics#19/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics#19/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics#19/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
at java.base/java.lang.Thread.run(Thread.java:1589)
Exception in thread "JavaFX Application Thread" java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 2
at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100)
at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106)
at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302)
at java.base/java.util.Objects.checkIndex(Objects.java:385)
at java.base/java.util.ArrayList.get(ArrayList.java:427)
at javafx.base#19/com.sun.javafx.collections.ObservableListWrapper.get(ObservableListWrapper.java:89)
at javafx.base#19/com.sun.javafx.collections.VetoableListDecorator.get(VetoableListDecorator.java:305)
at javafx.graphics#19/javafx.scene.Parent.updateCachedBounds(Parent.java:1704)
at javafx.graphics#19/javafx.scene.Parent.recomputeBounds(Parent.java:1648)
at javafx.graphics#19/javafx.scene.Parent.doComputeGeomBounds(Parent.java:1501)
at javafx.graphics#19/javafx.scene.Parent$1.doComputeGeomBounds(Parent.java:115)
at javafx.graphics#19/com.sun.javafx.scene.ParentHelper.computeGeomBoundsImpl(ParentHelper.java:84)
at javafx.graphics#19/com.sun.javafx.scene.layout.RegionHelper.superComputeGeomBoundsImpl(RegionHelper.java:78)
at javafx.graphics#19/com.sun.javafx.scene.layout.RegionHelper.superComputeGeomBounds(RegionHelper.java:62)
at javafx.graphics#19/javafx.scene.layout.Region.doComputeGeomBounds(Region.java:3355)
at javafx.graphics#19/javafx.scene.layout.Region$1.doComputeGeomBounds(Region.java:168)
at javafx.graphics#19/com.sun.javafx.scene.layout.RegionHelper.computeGeomBoundsImpl(RegionHelper.java:89)
at javafx.graphics#19/com.sun.javafx.scene.NodeHelper.computeGeomBounds(NodeHelper.java:117)
at javafx.graphics#19/javafx.scene.Node.updateGeomBounds(Node.java:3825)
at javafx.graphics#19/javafx.scene.Node.getGeomBounds(Node.java:3787)
at javafx.graphics#19/javafx.scene.Node.getLocalBounds(Node.java:3735)
at javafx.graphics#19/javafx.scene.Node.intersectsBounds(Node.java:5270)
at javafx.graphics#19/javafx.scene.Node$1.intersectsBounds(Node.java:559)
at javafx.graphics#19/com.sun.javafx.scene.NodeHelper.intersectsBounds(NodeHelper.java:264)
at javafx.graphics#19/javafx.scene.layout.Region.doPickNodeLocal(Region.java:3224)
at javafx.graphics#19/javafx.scene.layout.Region$1.doPickNodeLocal(Region.java:184)
at javafx.graphics#19/com.sun.javafx.scene.layout.RegionHelper.pickNodeLocalImpl(RegionHelper.java:104)
at javafx.graphics#19/com.sun.javafx.scene.NodeHelper.pickNodeLocal(NodeHelper.java:130)
at javafx.graphics#19/javafx.scene.Node.pickNode(Node.java:5180)
at javafx.graphics#19/javafx.scene.Scene$MouseHandler.pickNode(Scene.java:4037)
at javafx.graphics#19/javafx.scene.Scene.pick(Scene.java:2067)
at javafx.graphics#19/javafx.scene.Scene$MouseHandler.process(Scene.java:3847)
at javafx.graphics#19/javafx.scene.Scene.processMouseEvent(Scene.java:1887)
at javafx.graphics#19/javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2620)
at javafx.graphics#19/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:411)
at javafx.graphics#19/com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:301)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at javafx.graphics#19/com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:450)
at javafx.graphics#19/com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:424)
at javafx.graphics#19/com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:449)
at javafx.graphics#19/com.sun.glass.ui.View.handleMouseEvent(View.java:551)
at javafx.graphics#19/com.sun.glass.ui.View.notifyMouse(View.java:937)
at javafx.graphics#19/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics#19/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
at java.base/java.lang.Thread.run(Thread.java:1589)
Normally when I get errors like this I will follow errors to the part that I wrote something incorrect or made some mistake with my work. But these don't point to anything in particular other than my runLoop which is pretty simple.
try
{
Database.deleteLastRow();
Database.updateRows();
JSONAccess.createNewRow();
if(increaseCounter)
{
rowCounter++;
}
if(rowCounter >= Main.calculatedRows)
{
if(testLine)
{
System.out.println("Starting");
testLine = false;
}
increaseCounter = false;
MainGUI.txtContent.appendText("\n New Section");
Database.compareValues();
}
}
catch (Exception e)
{
MainGUI.btnStart.setDisable(false);
MainGUI.btnStop.setDisable(true);
System.out.println("Test to see if something goes wrong");
}
public static void compareValues() throws Exception
{
Class.forName("org.hsqldb.jdbc.JDBCDriver");
for (String tableName : symbolsList)
{
String compareSql = "SELECT * FROM tbl_" + tableName + " ORDER BY id";
prepStatement = connection.prepareStatement(compareSql);
ResultSet rs = prepStatement.executeQuery();
int rowNum = 1;
while (rs.next())
{
if (rowNum == 1)
{
dblNew = rs.getDouble("val");
}
if (rowNum == Main.calculatedRows)
{
dblOld = rs.getDouble("val");
}
rowNum = Main.calculatedRows;
}
mathsCompare(tableName, dblNew, dblOld);
}
}
public static void mathsCompare(String tableName1, double dblNew1, double dblOld1) throws Exception
{
if(dblNew1>dblOld1)
{
double dblChange = ((dblNew1-dblOld1)/dblOld1)*100;
if(dblChange >= Main.dblPercentage)
{
MainGUI.txtContent.appendText("\n" + tableName1);
System.out.print("\n" + tableName1);
}
}
}
If I have both System.out.println and MainGUI.txtContent.appendText enabled then the console gets an extra set of values out before the error comes out but thats when I get stumped
Any help appreciated.
I'm trying to execute the following code using JDK 17.0.1. I have ensured the JDK 17 is on the class path.
Here is the code i'm executing:
import jdk.incubator.foreign.MemoryAddress;
import jdk.incubator.foreign.MemoryHandles;
import jdk.incubator.foreign.MemorySegment;
import jdk.incubator.foreign.ResourceScope;
import java.lang.invoke.VarHandle;
import java.nio.ByteOrder;
public class PanamaMain {
public static void main (String[] args) {
MemoryAddress address = MemorySegment.allocateNative(4, ResourceScope.newImplicitScope()).address();
VarHandle handle = MemoryHandles.varHandle(int.class, ByteOrder.nativeOrder());
int value = (int) handle.get(address); //This line throws the exception mentioned above.
System.out.println("Memory Value: " + value);
}
}
The cause of the exception is: java.lang.UnsatisfiedLinkError: 'java.lang.Object java.lang.invoke.VarHandle.get(java.lang.Object[])'
Exception Details
I saw some replies on a similar exception suggesting using the java.library.path system property but I got an error that the java.library.path is an invalid flag.
I would appreciate your help/tips on this issue! Thank you in advance for your time!
The VarHandle.get method is expecting a MemorySegment (not MemoryAddress) and offset in bytes within the segment. The layouts of standard C types are found in CLinker.C_XXX so you don't need to hardcode byte size of int as 4.
Assuming that your PATH is correct for launching JDK17 then this should work:
MemorySegment segment = MemorySegment.allocateNative(CLinker.C_INT, ResourceScope.newImplicitScope());
VarHandle handle = MemoryHandles.varHandle(int.class, ByteOrder.nativeOrder());
handle.set(segment, 0, 4567);
int value = (int)handle.get(segment, 0);
System.out.println("Memory Value: " + value + " = 0x"+Integer.toHexString(value));
Prints:
Memory Value: 4567 = 0x11d7
In JDK17 you can also use MemoryAccess to set or get values from allocated MemorySegment. , and could change to:
MemorySegment segment = MemorySegment.allocateNative(CLinker.C_INT, ResourceScope.newImplicitScope());
MemoryAccess.setInt(segment, -1234);
int value = MemoryAccess.getInt(segment);
System.out.println("Memory Value: " + value + " = 0x"+Integer.toHexString(value));
Prints
Memory Value: -1234 = 0xfffffb2e
Note that the API has changed, so the equivalent code in JDK18+ will be different.
Is my first time using jflex, I'm following a tutorial i found on the internet in my native language (portuguese), I installed and assembled everything.
But when I try to generate the "Lexer" class, it shows a syntax error in my ".flex" file, I don't know what might be happening because it all seems to be ok.
.flex file
//NOME_VARIAVEL,INT,DEC,COMENTARIO,BRANCO,PALAVRA_CHAVE,ERRO
package Compilador;
import static Compilador.Token.*;
%%
%{
private void imprimir (String token,String lexema){
System.out.println(lexema +" ===>> " + token);
}
%}
%class Lexer
%type Token
nomeVariavel = [_a-zA-Z][_zA-z0-9]*
inteiro = [0-9]+
decimal = [0-9]+["."]+[0-9]+
blocoComentario = "/*" ~"*/"
branco = [\t|\n|\r]+
linhaComentario = [branco]*"//" .*
palavrasChave = "if" | "class" | "int" | "while" | "for" | "do" | "float"
%%
{palavrasChave} { imprimir("PALAVRA_CHAVE : ", yytext()); return PALAVRA_CHAVE; }
{nomeVariavel} { imprimir("VARIAVEL : ", yytext()); return NOME_VARIAVEL; }
{inteiro} { imprimir("NUMERO INTEIRO : ", yytext()); return INT; }
{decimal} { imprimir("NUMERO DECIMAL : ", yytext()); return DEC; }
{blocoComentario} { imprimir("COMENTARIO : ", yytext()); return COMENTARIO; }
{linhaComentario} { imprimir("COMENTARIO : ", yytext()); return COMENTARIO; }
{branco} ( return BRANCO; }
. {imprimir("<<< CARACTER INVALIDO!!! >>> ",yytext()); return ERROR;}
<<EOF>> {return null;}
Token.java file
package compilador;
public enum Token{
NOME_VARIAVEL, INT, DEC, COMENTARIO, BRANCO, PALAVRA_CHAVE, ERROR;
}
generator.flex file
package compilador;
import java.io.*;
public class GeraLexer {
public static void main(String[] args) throws IOException {
String arquivo ="<path redacted for reasons, but it is finding the file>";
geraLexer(arquivo);
}
public static void geraLexer(String arq){
File file = new File(arq);
jflex.Main.generate(file);
}
}
error presented when generating
Reading "<path redacted for reasons, but it is finding the file>"
Error in file "<path redacted for reasons, but it is finding the file>" (line 28):
Syntax error.
. {imprimir("<<< CARACTER INVALIDO!!! >>> ",yytext()); return ERROR;}
^
Exception in thread "main" jflex.GeneratorException: Generation aborted
at jflex.Main.generate(Main.java:139)
at compilador.GeraLexer.geraLexer(GeraLexer.java:13)
at compilador.GeraLexer.main(GeraLexer.java:8)
Java Result: 1
CONSTRUÍDO COM SUCESSO (tempo total: 0 segundos)
Appreciate anyone willing to help, yes, I googled first.
In the previous line, you have
{branco} ( return BRANCO; }
The ( should be a {.
As you will discover soon writing your own parser, it is not always easy to notice an error in the right place. The error is often detected one token later than you might want, and sometimes that token is on the next line.
I need to train the Chunker in Opennlp to classify the training data as a noun phrase. How do I proceed? The documentation online does not have an explanation how to do it without the command line, incorporated in a program. It says to use en-chunker.train, but how do you make that file?
EDIT: #Alaye
After running the code you gave in your answer, I get the following error that I cannot fix:
Indexing events using cutoff of 5
Computing event counts... done. 3 events
Dropped event B-NP:[w_2=bos, w_1=bos, w0=He, w1=reckons, w2=., w_1=bosw0=He, w0=Hew1=reckons, t_2=bos, t_1=bos, t0=PRP, t1=VBZ, t2=., t_2=bost_1=bos, t_1=bost0=PRP, t0=PRPt1=VBZ, t1=VBZt2=., t_2=bost_1=bost0=PRP, t_1=bost0=PRPt1=VBZ, t0=PRPt1=VBZt2=., p_2=bos, p_1=bos, p_2=bosp_1=bos, p_1=bost_2=bos, p_1=bost_1=bos, p_1=bost0=PRP, p_1=bost1=VBZ, p_1=bost2=., p_1=bost_2=bost_1=bos, p_1=bost_1=bost0=PRP, p_1=bost0=PRPt1=VBZ, p_1=bost1=VBZt2=., p_1=bost_2=bost_1=bost0=PRP, p_1=bost_1=bost0=PRPt1=VBZ, p_1=bost0=PRPt1=VBZt2=., p_1=bosw_2=bos, p_1=bosw_1=bos, p_1=bosw0=He, p_1=bosw1=reckons, p_1=bosw2=., p_1=bosw_1=bosw0=He, p_1=bosw0=Hew1=reckons]
Dropped event B-VP:[w_2=bos, w_1=He, w0=reckons, w1=., w2=eos, w_1=Hew0=reckons, w0=reckonsw1=., t_2=bos, t_1=PRP, t0=VBZ, t1=., t2=eos, t_2=bost_1=PRP, t_1=PRPt0=VBZ, t0=VBZt1=., t1=.t2=eos, t_2=bost_1=PRPt0=VBZ, t_1=PRPt0=VBZt1=., t0=VBZt1=.t2=eos, p_2=bos, p_1=B-NP, p_2=bosp_1=B-NP, p_1=B-NPt_2=bos, p_1=B-NPt_1=PRP, p_1=B-NPt0=VBZ, p_1=B-NPt1=., p_1=B-NPt2=eos, p_1=B-NPt_2=bost_1=PRP, p_1=B-NPt_1=PRPt0=VBZ, p_1=B-NPt0=VBZt1=., p_1=B-NPt1=.t2=eos, p_1=B-NPt_2=bost_1=PRPt0=VBZ, p_1=B-NPt_1=PRPt0=VBZt1=., p_1=B-NPt0=VBZt1=.t2=eos, p_1=B-NPw_2=bos, p_1=B-NPw_1=He, p_1=B-NPw0=reckons, p_1=B-NPw1=., p_1=B-NPw2=eos, p_1=B-NPw_1=Hew0=reckons, p_1=B-NPw0=reckonsw1=.]
Dropped event O:[w_2=He, w_1=reckons, w0=., w1=eos, w2=eos, w_1=reckonsw0=., w0=.w1=eos, t_2=PRP, t_1=VBZ, t0=., t1=eos, t2=eos, t_2=PRPt_1=VBZ, t_1=VBZt0=., t0=.t1=eos, t1=eost2=eos, t_2=PRPt_1=VBZt0=., t_1=VBZt0=.t1=eos, t0=.t1=eost2=eos, p_2B-NP, p_1=B-VP, p_2B-NPp_1=B-VP, p_1=B-VPt_2=PRP, p_1=B-VPt_1=VBZ, p_1=B-VPt0=., p_1=B-VPt1=eos, p_1=B-VPt2=eos, p_1=B-VPt_2=PRPt_1=VBZ, p_1=B-VPt_1=VBZt0=., p_1=B-VPt0=.t1=eos, p_1=B-VPt1=eost2=eos, p_1=B-VPt_2=PRPt_1=VBZt0=., p_1=B-VPt_1=VBZt0=.t1=eos, p_1=B-VPt0=.t1=eost2=eos, p_1=B-VPw_2=He, p_1=B-VPw_1=reckons, p_1=B-VPw0=., p_1=B-VPw1=eos, p_1=B-VPw2=eos, p_1=B-VPw_1=reckonsw0=., p_1=B-VPw0=.w1=eos]
Indexing... done.
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:653)
at java.util.ArrayList.get(ArrayList.java:429)
at opennlp.tools.ml.model.AbstractDataIndexer.sortAndMerge(AbstractDataIndexer.java:89)
at opennlp.tools.ml.model.TwoPassDataIndexer.<init>(TwoPassDataIndexer.java:105)
at opennlp.tools.ml.AbstractEventTrainer.getDataIndexer(AbstractEventTrainer.java:74)
at opennlp.tools.ml.AbstractEventTrainer.train(AbstractEventTrainer.java:91)
at opennlp.tools.ml.model.TrainUtil.train(TrainUtil.java:53)
at opennlp.tools.chunker.ChunkerME.train(ChunkerME.java:253)
at com.oracle.crm.nlp.CustomChunker2.main(CustomChunker2.java:91)
Sorting and merging events... Process exited with exit code 1.
(My en-chunker.train had only the first 2 and last line of your sample data set.)
Could you please tell me why this is happening and how to fix it?
EDIT2: I got the Chunker to work, however it gives an error when I change the sentence in the training set to any sentence other than the one you've given in your answer. Can you tell me why that could be happening?
As said in Opennlp Documentation
Sample sentence of the training data:
He PRP B-NP
reckons VBZ B-VP
the DT B-NP
current JJ I-NP
account NN I-NP
deficit NN I-NP
will MD B-VP
narrow VB I-VP
to TO B-PP
only RB B-NP
# # I-NP
1.8 CD I-NP
billion CD I-NP
in IN B-PP
September NNP B-NP
. . O
This is how you make your en-chunk.train file and you can create the corresponding .bin file using CLI:
$ opennlp ChunkerTrainerME -model en-chunker.bin -lang en -data en-chunker.train -encoding
or using API
public class SentenceTrainer {
public static void trainModel(String inputFile, String modelFile)
throws IOException {
Objects.nonNull(inputFile);
Objects.nonNull(modelFile);
MarkableFileInputStreamFactory factory = new MarkableFileInputStreamFactory(
new File(inputFile));
Charset charset = Charset.forName("UTF-8");
ObjectStream<String> lineStream =
new PlainTextByLineStream(new FileInputStream("en-chunker.train"),charset);
ObjectStream<ChunkSample> sampleStream = new ChunkSampleStream(lineStream);
ChunkerModel model;
try {
model = ChunkerME.train("en", sampleStream,
new DefaultChunkerContextGenerator(), TrainingParameters.defaultParams());
}
finally {
sampleStream.close();
}
OutputStream modelOut = null;
try {
modelOut = new BufferedOutputStream(new FileOutputStream(modelFile));
model.serialize(modelOut);
} finally {
if (modelOut != null)
modelOut.close();
}
}
}
and the main method will be:
public class Main {
public static void main(String args[]) throws IOException {
String inputFile = "//path//to//data.train";
String modelFile = "//path//to//.bin";
SentenceTrainer.trainModel(inputFile, modelFile);
}
}
reference: this blog
hope this helps!
PS: collect/write the data as above in a .txt file and rename it with .train extension or even the trainingdata.txt will work. that is how you make a .train file.
I have written a code which can reduce the grammatical boundaries for a text, but when I run the program this exception comes up
java.lang.ClassCastException
here is the class that i run,
public class paerser {
public static void main (String [] arg){
LexicalizedParser lp = new LexicalizedParser("grammar/englishPCFG.ser.gz");
lp.setOptionFlags("-maxLength", "500", "-retainTmpSubcategories");
TreebankLanguagePack tlp = new PennTreebankLanguagePack();
GrammaticalStructureFactory gsf = tlp.grammaticalStructureFactory();
String text = "John, who was the CEO of a company, played golf.";
edu.stanford.nlp.trees.Tree parse = lp.apply(Arrays.asList(text));
GrammaticalStructure gs = gsf.newGrammaticalStructure(parse);
List<TypedDependency> tdl = gs.typedDependenciesCCprocessed();
System.out.println(tdl);
}
}
Updated,
here is the full stack trace ...
Loading parser from serialized file grammar/englishPCFG.ser.gz ... done [1.5 sec].
Following exception caught during parsing:
java.lang.ClassCastException: java.lang.String cannot be cast to edu.stanford.nlp.ling.HasWord
at edu.stanford.nlp.parser.lexparser.ExhaustivePCFGParser.parse(ExhaustivePCFGParser.java:346)
at edu.stanford.nlp.parser.lexparser.LexicalizedParser.parse(LexicalizedParser.java:386)
at edu.stanford.nlp.parser.lexparser.LexicalizedParser.apply(LexicalizedParser.java:304)
at paerser.main(paerser.java:19)
Recovering using fall through strategy: will construct an (X ...) tree.
Exception in thread "main" java.lang.ClassCastException: java.lang.String cannot be cast to edu.stanford.nlp.ling.HasWord
at edu.stanford.nlp.parser.lexparser.LexicalizedParser.apply(LexicalizedParser.java:317)
at paerser.main(paerser.java:19)
Stacktrace shows that ExhaustivePCFGParser's parse method is being used. It expects a List of HasWord objects. You are passing a list of String. Hence, the exception.
public boolean parse(List<? extends HasWord> sentence) { // ExhaustivePCFGParser