google / google/google-java-format
IndexOutOfBoundsException - Wrong formatted content when dealing with latex String
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Descrição
Give this class
```java
package question;
class T {
private static final String JSON =
"{\n"
+ " \"a\": \"AAAAA AAA AAA AAA AA AAA AA AAAAA AA AAAAA AAA AAAA AAAA AA AAAA AAAA AAAAA AAAAA AAAAA AAAAA AAAAAA AAAAA AAAAAA AAAAA AAA at $-15.4{^{\\\\,\\\\circ}\\\\text{C}}$ BBB BBBBB BB BBB $42.7{^{\\\\,\\\\circ}\\\\text{C}}$?\\n\\n(CC CC CCC CC CCCCC CCC CCC CCC CCC CCC CC = $1.95\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$; DDD DDD DDDD DDDD DDDDD DDDD DDD DD DDDD = $1.18\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$C; $\\\\Delta H_\\\\text{fus}$ = 5.72 kJ/mol; normal freezing point, $T_f$ = $28.3{^{\\\\,\\\\circ}\\\\text{C}}$)\",\n"
+ " \"b\": \"*EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EEE.*\\n\\nFF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F $-15.4^\\\\circ\\\\text C$ to $28.3^\\\\circ\\\\text C$.\\n\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.95\\\\;\\\\mathrm{J/g\\\\cdot °C})(28.3\\\\;\\\\mathrm{ °C}-(-15.4)\\\\;\\\\mathrm{ °C})=860.6715\\\\;\\\\mathrm{J} \\\\]\\n\\nGG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GGGGGGGGGGGGGGGGGGGGG.\\n\\\\[q=nH_{fus}=(\\\\frac{10.1\\\\;\\\\mathrm{g}}{67.44\\\\;\\\\mathrm{g/mol}})(5720\\\\;\\\\mathrm{J})=856.6429\\\\;\\\\mathrm{J}\\\\]\\n\\nHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH $28.3^\\\\circ\\\\text C$ to $42.7^\\\\circ\\\\text C$.\\n\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.18\\\\;\\\\mathrm{J/g\\\\cdot °C})(42.7\\\\;\\\\mathrm{ °C}-28.3\\\\;\\\\mathrm{ °C})=171.6192\\\\;\\\\mathrm{J}\\\\]\\n\\nIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII.\\n\\\\[860.6715\\\\;\\\\mathrm{J}+856.6429\\\\;\\\\mathrm{J}+171.6192\\\\;\\\\mathrm{J}=1888.9336\\\\;\\\\mathrm{J}=1.89\\\\;\\\\mathrm{kJ}\\\\]\",\n"
+ "}";
private static final String JSON2 =
"{\n"
+ " \"a\": \"AAAAA AAA AAA AAA AA AAA AA AAAAA AA AAAAA AAA AAAA AAAA AA AAAA AAAA AAAAA AAAAA AAAAA AAAAA AAAAAA AAAAA AAAAAA AAAAA AAA at $-15.4{^{\\\\,\\\\circ}\\\\text{C}}$ BBB BBBBB BB BBB $42.7{^{\\\\,\\\\circ}\\\\text{C}}$?\\n\\n(CC CC CCC CC CCCCC CCC CCC CCC CCC CCC CC = $1.95\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$; DDD DDD DDDD DDDD DDDDD DDDD DDD DD DDDD = $1.18\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$C; $\\\\Delta H_\\\\text{fus}$ = 5.72 kJ/mol; normal freezing point, $T_f$ = $28.3{^{\\\\,\\\\circ}\\\\text{C}}$)\",\n"
+ " \"b\": \"*EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EEE.*\\n\\nFF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F $-15.4^\\\\circ\\\\text C$ to $28.3^\\\\circ\\\\text C$.\\n\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.95\\\\;\\\\mathrm{J/g\\\\cdot °C})(28.3\\\\;\\\\mathrm{ °C}-(-15.4)\\\\;\\\\mathrm{ °C})=860.6715\\\\;\\\\mathrm{J} \\\\]\\n\\nGG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GGGGGGGGGGGGGGGGGGGGG.\\n\\\\[q=nH_{fus}=(\\\\frac{10.1\\\\;\\\\mathrm{g}}{67.44\\\\;\\\\mathrm{g/mol}})(5720\\\\;\\\\mathrm{J})=856.6429\\\\;\\\\mathrm{J}\\\\]\\n\\nHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH $28.3^\\\\circ\\\\text C$ to $42.7^\\\\circ\\\\text C$.\\n\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.18\\\\;\\\\mathrm{J/g\\\\cdot °C})(42.7\\\\;\\\\mathrm{ °C}-28.3\\\\;\\\\mathrm{ °C})=171.6192\\\\;\\\\mathrm{J}\\\\]\\n\\nIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII.\\n\\\\[860.6715\\\\;\\\\mathrm{J}+856.6429\\\\;\\\\mathrm{J}+171.6192\\\\;\\\\mathrm{J}=1888.9336\\\\;\\\\mathrm{J}=1.89\\\\;\\\\mathrm{kJ}\\\\]\",\n"
+ "}";
public static void main(String[] args) {
System.out.println(JSON);
}
}
```
I ran the `main` method to ensure it is valid java source code
But when trying to format it using GJF, I got
```
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 42 out of bounds for length 22
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 java.base/java.util.Collections$UnmodifiableList.get(Collections.java:1502)
at com.google.googlejavaformat.java.FormatterException.formatDiagnostics(FormatterException.java:70)
at com.google.googlejavaformat.java.Main.formatFiles(Main.java:177)
at com.google.googlejavaformat.java.Main.format(Main.java:128)
at com.google.googlejavaformat.java.Main.main(Main.java:91)
at com.google.googlejavaformat.java.Main.main(Main.java:81)
at com.google.googlejavaformat.java.Main.main(Main.java:70)
```
Digging into the GJF, I found 2 issues:
1. The `com.google.googlejavaformat.java.StringWrapper#applyReplacements` give wrong result:
```java
package question;
class T {
private static final String JSON =
"{\n"
+ " \"a\": \"AAAAA AAA AAA AAA AA AAA AA AAAAA AA AAAAA AAA AAAA AAAA AA AAAA AAAA AAAAA"
+ " AAAAA AAAAA AAAAA AAAAAA AAAAA AAAAAA AAAAA AAA at $-15.4{^{\\\\,\\\\circ}\\\"
+ "\text{C}}$ BBB BBBBB BB BBB $42.7{^{\\\\,\\\\circ}\\\\text{C}}$?\\n"
+ "\\n"
+ "(CC CC CCC CC CCCCC CCC CCC CCC CCC CCC CC = $1.95\\\\;{\\\\text{J}/\\\"
+ "\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$; DDD DDD DDDD DDDD DDDDD DDDD DDD DD DDDD ="
+ " $1.18\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$C; $\\\\Delta"
+ " H_\\\\text{fus}$ = 5.72 kJ/mol; normal freezing point, $T_f$ ="
+ " $28.3{^{\\\\,\\\\circ}\\\\text{C}}$)\",\n"
+ " \"b\": \"*EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE"
+ " EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE"
+ " EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EEE.*\\n"
+ "\\n"
+ "FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F"
+ " $-15.4^\\\\circ\\\\text C$ to $28.3^\\\\circ\\\\text C$.\\n"
+ "\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.95\\\\;\\\\mathrm{J/g\\\\cdot"
+ " °C})(28.3\\\\;\\\\mathrm{ °C}-(-15.4)\\\\;\\\\mathrm{ °C})=860.6715\\\\;\\\\mathrm{J}"
+ " \\\\]\\n"
+ "\\n"
+ "GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG"
+ " GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GGGGGGGGGGGGGGGGGGGGG.\\n"
+ "\\\\[q=nH_{fus}=(\\\\frac{10.1\\\\;\\\\mathrm{g}}{67.44\\\\;\\\\mathrm{g/mol}})(5720\\\\;\\\\mathrm{J})=856.6429\\\\;\\\\mathrm{J}\\\\]\\n"
+ "\\n"
+ "HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH $28.3^\\\\circ\\\\text C$ to"
+ " $42.7^\\\\circ\\\\text C$.\\n"
+ "\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.18\\\\;\\\\mathrm{J/g\\\\cdot"
+ " °C})(42.7\\\\;\\\\mathrm{ °C}-28.3\\\\;\\\\mathrm{"
+ " °C})=171.6192\\\\;\\\\mathrm{J}\\\\]\\n"
+ "\\n"
+ "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII.\\n"
+ "\\\\[860.6715\\\\;\\\\mathrm{J}+856.6429\\\\;\\\\mathrm{J}+171.6192\\\\;\\\\mathrm{J}=1888.9336\\\\;\\\\mathrm{J}=1.89\\\\;\\\\mathrm{kJ}\\\\]\",\n"
+ "}";
private static final String JSON2 =
"{\n"
+ " \"a\": \"AAAAA AAA AAA AAA AA AAA AA AAAAA AA AAAAA AAA AAAA AAAA AA AAAA AAAA AAAAA"
+ " AAAAA AAAAA AAAAA AAAAAA AAAAA AAAAAA AAAAA AAA at $-15.4{^{\\\\,\\\\circ}\\\"
+ "\text{C}}$ BBB BBBBB BB BBB $42.7{^{\\\\,\\\\circ}\\\\text{C}}$?\\n"
+ "\\n"
+ "(CC CC CCC CC CCCCC CCC CCC CCC CCC CCC CC = $1.95\\\\;{\\\\text{J}/\\\"
+ "\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$; DDD DDD DDDD DDDD DDDDD DDDD DDD DD DDDD ="
+ " $1.18\\\\;{\\\\text{J}/\\\\text{g}\\\\cdot{^{\\\\circ}\\\\text{C}}}$C; $\\\\Delta"
+ " H_\\\\text{fus}$ = 5.72 kJ/mol; normal freezing point, $T_f$ ="
+ " $28.3{^{\\\\,\\\\circ}\\\\text{C}}$)\",\n"
+ " \"b\": \"*EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE"
+ " EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE"
+ " EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EE EEE.*\\n"
+ "\\n"
+ "FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F"
+ " $-15.4^\\\\circ\\\\text C$ to $28.3^\\\\circ\\\\text C$.\\n"
+ "\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.95\\\\;\\\\mathrm{J/g\\\\cdot"
+ " °C})(28.3\\\\;\\\\mathrm{ °C}-(-15.4)\\\\;\\\\mathrm{ °C})=860.6715\\\\;\\\\mathrm{J}"
+ " \\\\]\\n"
+ "\\n"
+ "GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG"
+ " GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GG GGGGGGGGGGGGGGGGGGGGG.\\n"
+ "\\\\[q=nH_{fus}=(\\\\frac{10.1\\\\;\\\\mathrm{g}}{67.44\\\\;\\\\mathrm{g/mol}})(5720\\\\;\\\\mathrm{J})=856.6429\\\\;\\\\mathrm{J}\\\\]\\n"
+ "\\n"
+ "HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH $28.3^\\\\circ\\\\text C$ to"
+ " $42.7^\\\\circ\\\\text C$.\\n"
+ "\\\\[q=mc\\\\Delta T=(10.1\\\\;\\\\mathrm{g})(1.18\\\\;\\\\mathrm{J/g\\\\cdot"
+ " °C})(42.7\\\\;\\\\mathrm{ °C}-28.3\\\\;\\\\mathrm{"
+ " °C})=171.6192\\\\;\\\\mathrm{J}\\\\]\\n"
+ "\\n"
+ "IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII.\\n"
+ "\\\\[860.6715\\\\;\\\\mathrm{J}+856.6429\\\\;\\\\mathrm{J}+171.6192\\\\;\\\\mathrm{J}=1888.9336\\\\;\\\\mathrm{J}=1.89\\\\;\\\\mathrm{kJ}\\\\]\",\n"
+ "}";
public static void main(String[] args) {
System.out.println(JSON);
}
}
```
This result is completely not compilable
2. `com.google.googlejavaformat.java.FormatterException#formatDiagnostics` using wrong param to format the diagnostics: It uses the original java content (22 lines intotal) instead of formatted java content (79 lines in total). That is why we getting IndexOutOfBoundsException
Guia de contribuição
Direção de pesquisa
Reproduza a falha com a classe Java fornecida e, em seguida, inspecione StringWrapper#applyReplacements e FormatterException#formatDiagnostics. Verifique o código-fonte gerado e o tratamento da linha de diagnóstico em relação à entrada original. A tarefa estará concluída quando a formatação não produzir mais Java não compilável e o formatter relatar o erro sem IndexOutOfBoundsException.
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Avaliação
- Stack de tecnologia
- java
- Domínio
- tooling
- Tipo de issue
- Bug
- Dificuldade
- 4/5
- Tempo estimado
- 3-5 dias
- Status de atividade
- Pouca atividade
- Clareza
- Razoavelmente clara
- Facilidade para iniciantes
- 55/100