Hello, experts.
We are facing some trouble in aspose pdf library.
Almost all case is good, but sometimes aspose pdf raise following exception in com.aspose.pdf.Document.save.
Do you have any idea what is root causes of this issue ?
(Masked our private library and functions in stack trace)
com.aspose.pdf.Document.save(svgFilePath, options)
exception:
java.util.regex.PatternSyntaxException: Dangling meta character '?' near index 17
[A-Z]{6}\+?l?r ????
^
stacktrace:
0 = {StackTraceElement@14205} "java.base/java.util.regex.Pattern.error(Pattern.java:2027)"
1 = {StackTraceElement@14206} "java.base/java.util.regex.Pattern.sequence(Pattern.java:2202)"
2 = {StackTraceElement@14207} "java.base/java.util.regex.Pattern.expr(Pattern.java:2068)"
3 = {StackTraceElement@14208} "java.base/java.util.regex.Pattern.compile(Pattern.java:1782)"
4 = {StackTraceElement@14209} "java.base/java.util.regex.Pattern.<init>(Pattern.java:1428)"
5 = {StackTraceElement@14210} "java.base/java.util.regex.Pattern.compile(Pattern.java:1094)"
6 = {StackTraceElement@14211} "[com.aspose.pdf.internal.l55f.lv](http://com.aspose.pdf.internal.l55f.lv/).<init>(Unknown Source)"
7 = {StackTraceElement@14212} "[com.aspose.pdf.internal.l55f.lv.lt](http://com.aspose.pdf.internal.l55f.lv.lt/)(Unknown Source)"
8 = {StackTraceElement@14213} "[com.aspose.pdf.internal.l55f.lv.lb](http://com.aspose.pdf.internal.l55f.lv.lb/)(Unknown Source)"
9 = {StackTraceElement@14214} "com.aspose.pdf.internal.l3j.lI.lI(Unknown Source)"
10 = {StackTraceElement@14215} "com.aspose.pdf.internal.l3j.lb.lI(Unknown Source)"
11 = {StackTraceElement@14216} "[com.aspose.pdf.internal.l2h.lu](http://com.aspose.pdf.internal.l2h.lu/).lj(Unknown Source)"
12 = {StackTraceElement@14217} "[com.aspose.pdf.internal.l2h.lu.lb](http://com.aspose.pdf.internal.l2h.lu.lb/)(Unknown Source)"
13 = {StackTraceElement@14218} "[com.aspose.pdf.internal.l2h.lu](http://com.aspose.pdf.internal.l2h.lu/).lf(Unknown Source)"
14 = {StackTraceElement@14219} "[com.aspose.pdf.internal.l2h.lu](http://com.aspose.pdf.internal.l2h.lu/).lf(Unknown Source)"
15 = {StackTraceElement@14220} "com.aspose.pdf.l12f.lI(Unknown Source)"
16 = {StackTraceElement@14221} "[com.aspose.pdf.l12f.lb](http://com.aspose.pdf.l12f.lb/)(Unknown Source)"
17 = {StackTraceElement@14222} "com.aspose.pdf.ApsUsingConverter.lI(Unknown Source)"
18 = {StackTraceElement@14223} "com.aspose.pdf.ApsUsingConverter.lf(Unknown Source)"
19 = {StackTraceElement@14224} "com.aspose.pdf.l16p.lI(Unknown Source)"
20 = {StackTraceElement@14225} "com.aspose.pdf.ADocument.lI(Unknown Source)"
21 = {StackTraceElement@14226} "com.aspose.pdf.ADocument.save(Unknown Source)"
22 = {StackTraceElement@14227} "com.aspose.pdf.Document.save(Unknown Source)"
23 = {StackTraceElement@14228} "com.*******************"
24 = {StackTraceElement@14229} "com.*******************"
25 = {StackTraceElement@14230} "org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)"
26 = {StackTraceElement@14231} "org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:684)"
27 = {StackTraceElement@14232} "com.*******************"
28 = {StackTraceElement@14233} "com.*******************"
29 = {StackTraceElement@14234} "java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)"
30 = {StackTraceElement@14235} "java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)"
31 = {StackTraceElement@14236} "java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)"
32 = {StackTraceElement@14237} "java.base/java.lang.reflect.Method.invoke(Method.java:566)"
33 = {StackTraceElement@14238} "org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)"
34 = {StackTraceElement@14239} "org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)"
35 = {StackTraceElement@14240} "org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)"
36 = {StackTraceElement@14241} "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892)"
37 = {StackTraceElement@14242} "org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)"
38 = {StackTraceElement@14243} "org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)"
39 = {StackTraceElement@14244} "org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)"
40 = {StackTraceElement@14245} "org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)"
41 = {StackTraceElement@14246} "org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)"
42 = {StackTraceElement@14247} "org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)"
43 = {StackTraceElement@14248} "javax.servlet.http.HttpServlet.service(HttpServlet.java:660)"
44 = {StackTraceElement@14249} "org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)"
45 = {StackTraceElement@14250} "javax.servlet.http.HttpServlet.service(HttpServlet.java:741)"
46 = {StackTraceElement@14251} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)"
47 = {StackTraceElement@14252} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
48 = {StackTraceElement@14253} "org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)"
49 = {StackTraceElement@14254} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)"
50 = {StackTraceElement@14255} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
51 = {StackTraceElement@14256} "org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)"
52 = {StackTraceElement@14257} "org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)"
53 = {StackTraceElement@14258} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)"
54 = {StackTraceElement@14259} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
55 = {StackTraceElement@14260} "org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)"
56 = {StackTraceElement@14261} "org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)"
57 = {StackTraceElement@14262} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)"
58 = {StackTraceElement@14263} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
59 = {StackTraceElement@14264} "org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)"
60 = {StackTraceElement@14265} "org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)"
61 = {StackTraceElement@14266} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)"
62 = {StackTraceElement@14267} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
63 = {StackTraceElement@14268} "org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)"
64 = {StackTraceElement@14269} "org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)"
65 = {StackTraceElement@14270} "org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)"
66 = {StackTraceElement@14271} "org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)"
67 = {StackTraceElement@14272} "org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)"
68 = {StackTraceElement@14273} "org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)"
69 = {StackTraceElement@14274} "org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)"
70 = {StackTraceElement@14275} "org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)"
71 = {StackTraceElement@14276} "org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)"
72 = {StackTraceElement@14277} "org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)"
73 = {StackTraceElement@14278} "org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)"
74 = {StackTraceElement@14279} "org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)"
75 = {StackTraceElement@14280} "org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)"
76 = {StackTraceElement@14281} "org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)"
77 = {StackTraceElement@14282} "[org.apache.tomcat.util.net](http://org.apache.tomcat.util.net/).NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)"
78 = {StackTraceElement@14283} "org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)"
79 = {StackTraceElement@14284} "java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)"
80 = {StackTraceElement@14285} "java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)"
81 = {StackTraceElement@14286} "org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)"
82 = {StackTraceElement@14287} "java.base/java.lang.Thread.run(Thread.java:834)"